A unique ionic hybrid material[C_6H_(12)N_5O]_3[(PO_4)W__(12)O_(36)]·5H_2O has been synthesized from the reaction of((1H-tetrazole-5- yl)methyl)morpholine andα-H_3[(PO_4)W_(12)O_(36)]·21H_2O.It has successf...A unique ionic hybrid material[C_6H_(12)N_5O]_3[(PO_4)W__(12)O_(36)]·5H_2O has been synthesized from the reaction of((1H-tetrazole-5- yl)methyl)morpholine andα-H_3[(PO_4)W_(12)O_(36)]·21H_2O.It has successfully been characterized by elemental analysis,IR and ~1H NMR spectroscopies,TGA and single-crystal X-ray diffraction method.The title compound is constructed from the three [C_6H_(12)N_5O]^+ cations andα-Keggin[(PO_4)W_(12)O_(36)]^(3-) polyoxoanion.The most remarkable structural feature of this hybrid ...展开更多
An inorganic-organic hybrid compound, [H3NC2H4NH2]VOPO4 was synthesized by meansof the hydrothermal method. It was crystallized in a monoclinic system, a space group P21/c,with the crystal cell parameters: a=0. 922 85...An inorganic-organic hybrid compound, [H3NC2H4NH2]VOPO4 was synthesized by meansof the hydrothermal method. It was crystallized in a monoclinic system, a space group P21/c,with the crystal cell parameters: a=0. 922 85(11) nm, b=0. 729 94(9) nm, c=0. 984 95(11)nm, β=101. 280(3)°, V=0. 650 67(13) nm3, Mr=223.02 g/mol, Dc=2. 277 g/cm3, Z=4,R= 0. 031 5, ωR= 0. 086 5, GOF = 1. 085. The VO5N octahedra chains are corner-linked byPO4 tetrahedra; the VOsN octahedra are all trans-linked with V-O bonds being alternately short and long. The monoprotonated ethylenediamine was intercalated between the layers with one end coordinating to V and the other end as an H-bond donor interacting with a terminal O atom of PO4 from a neighboring sheet. The elementary analysis, infrared spectrum characters and thermal stability were also given.展开更多
Four rare earth inorganic-organic hybrid compounds based on Keggin-type polyoxometalate {SiW_(12)}with general formula [{RE(DMF)_(4)(H_(2)O)_4RE(DMF)_(6)}_(2){SiW_(12)O_(40)}_(3)](RE = La(1),Pr(2),Sm(3),Eu(4),DMF=N,N-...Four rare earth inorganic-organic hybrid compounds based on Keggin-type polyoxometalate {SiW_(12)}with general formula [{RE(DMF)_(4)(H_(2)O)_4RE(DMF)_(6)}_(2){SiW_(12)O_(40)}_(3)](RE = La(1),Pr(2),Sm(3),Eu(4),DMF=N,N-dimethylformamide) were synthesized by the conventional solution method.Structure analyses indicate that four compounds are isostructural and are all built from three [SiW_(12)O_(40)]^(4-) polyoxoanions and DMF ligands linked by RE^(3+).Compounds 1-4 are extremely sensitive to UV light and present excellent photochromic properties,in which the coloring and fading time of samples are both no more than 2 min,and the reversible coloring-fading process can be repeated for at least 10 cycles with little fatigue,suggesting that compounds 1-4 can be a series of fast-responsive and durable photochromic materials.Moreover,the solid-state photoluminescence spectra of compounds 3(Sm) and 4(Eu)display strong characteristic emissions of rare earth ions based on f-f transitions.Meanwhile,compound4(Eu) has a longer fluorescence lifetime up to 566.74 μs.Notably,co mpounds 3(Sm) and 4(Eu) exhibit the switchable luminescence behavior induced by photochromism,which allows them to be used as potential molecular switches.展开更多
Two new inorganic-organic hybrid polymers, Mn(QS)(H2O) (1) and Co(QS)(H2O)2 (2) (H2QS=8-hydroxyl-quinoline-5-sulfonic acid), based on 8-hydroxylquinoline-5-sulfonate ligand, have been synthesized under solvothermal co...Two new inorganic-organic hybrid polymers, Mn(QS)(H2O) (1) and Co(QS)(H2O)2 (2) (H2QS=8-hydroxyl-quinoline-5-sulfonic acid), based on 8-hydroxylquinoline-5-sulfonate ligand, have been synthesized under solvothermal conditions and their structures were solved by single-crystal X-ray diffraction analysis. Compound 1 is a three-dimensional open framework with rutile topology structure, and compound 2 is a three-dimensional supramolecular structure. These compounds were characterized by powder XRD, infrared spectroscopy, thermogravimetric analysis, fluorescence properties and magnetism properties.展开更多
Amorphous calcium phosphate(ACP)has been widely found during bone and tooth biomineralization,but the meta-stability and labile nature limit further biomedical applications.The present study found that the chelation o...Amorphous calcium phosphate(ACP)has been widely found during bone and tooth biomineralization,but the meta-stability and labile nature limit further biomedical applications.The present study found that the chelation of polyacrylic acid(PAA)molecules with Ca^(2+)ions in Mg-ACP clusters(~2.1±0.5 nm)using a biomineralization strategy produced inorganic-organic Mg-ACP/PAA hybrid nanoparticles with better thermal stability.Mg-ACP/PAA hybrid nanoparticles(~24.0±4.8 nm)were pH-responsive and could be efficiently digested under weak acidic conditions(pH 5.0-5.5).The internalization of assembled Mg-ACP/PAA nanoparticles by MC3T3-E1 cells occurred through endocytosis,indicated by laser scanning confocal microscopy and cryo-soft X-ray tomography.Our results showed that cellular lipid membranes remained intact without pore formation after Mg-ACP/PAA particle penetration.The assembled Mg-ACP/PAA particles could be digested in cell lysosomes within 24 h under weak acidic conditions,thereby indicating the potential to efficiently deliver encapsulated functional molecules.Both the in vitro and in vivo results preliminarily demonstrated good biosafety of the inorganic-organic Mg-ACP/PAA hybrid nanoparticles,which may have potential for biomedical applications.展开更多
Granular porous sorbents were normally used for heavy metals removal from water.To search for the new commercial sorbent and treatment strategy,an organic acrylic amine fiber(AAF)and phosphorus loading inorganic-organ...Granular porous sorbents were normally used for heavy metals removal from water.To search for the new commercial sorbent and treatment strategy,an organic acrylic amine fiber(AAF)and phosphorus loading inorganic-organic AAF(P-AAF)were prepared and used for lead(Pb)removal from water.A new strategy of inorganic-organic coupling technology was proposed for Pb removal,based on the hypothesis of surface-induced precipitation mechanism.The AAF showed a Pb adsorption capacity of 417 mg/g from the Langmuir fitting,while the column filtration technology was further applied to measure the adsorption edge and applications.Effects of different initial Pb concentrations,hydraulic retention time,and co-existing P were considered in the filtration experiments.The presence of 0.8 mg/L P in water significantly improved the Pb breakthrough point from 15,000 to 41,000 bed volumes of water spiked with 85μg/L Pb,while the P-AAF fixed bed showed better removal of Pb than AAF SEM/EDX and XRD spectra were employed for determining the surface functional groups and the formation of surface-induced precipitation of pyromorphite(Pb_5(PO_4)_3 OH)on AAF.This study verified the application of AAF sorbent for Pb removal and the enhanced effect of coating P on AAF,thus improved our fundamental understanding and application of the surface chemistry process of Pb with P.展开更多
1 Results In order to develop high capacity anode materials for enhancing the performance of lithium-ion batteries,silicon (Si) and a variety of metals that alloy with lithium,such as Sn,Sb,and Al,were studied and fou...1 Results In order to develop high capacity anode materials for enhancing the performance of lithium-ion batteries,silicon (Si) and a variety of metals that alloy with lithium,such as Sn,Sb,and Al,were studied and found to be promising candidates as anode materials[1-4].Among them,Si appears to be the most attractive candidate due to its large theoretical lithium insertion capacity of 4 200 mAh g-1[1].Unfortunately,there is one severe problem with the application of Si anode,i.e., the large volume chang...展开更多
Here we report the utilization of inorganic-organic hybrid(IOH)as a new type of cathode material for aqueous Zn-ion batteries.The IOH possessing a unique lattice-water-rich layered structure achieves high long-term cy...Here we report the utilization of inorganic-organic hybrid(IOH)as a new type of cathode material for aqueous Zn-ion batteries.The IOH possessing a unique lattice-water-rich layered structure achieves high long-term cycling stability(81.5%capacity retention over 1500 cycles)and ultrafast charging capability(~90%state of charge about 1 minute).展开更多
Oxygen evolution cocatalysts(OECs)play important roles in improving the efficiency of photocatalysts in solar water splitting.Inorganic–organic hybrid polymers(IOHPs),which have good electrolyte accessibility and eve...Oxygen evolution cocatalysts(OECs)play important roles in improving the efficiency of photocatalysts in solar water splitting.Inorganic–organic hybrid polymers(IOHPs),which have good electrolyte accessibility and evenly distributed active sites,are expected to be promising OECs.Here,a novel IOHP[Co(Bpn)_(2)(SCN)_(2)]n(1,Bpn=2,6-bis(4-pyridyl)-naphthalene,SCN=thiocyanate ion)exhibited a two-dimensional(2D)layer structure with(4,4)topology,was constructed by Bpn ligands connecting Co(II)ions,and was decorated on BiVO_(4) photoanodes for photoelectrochemical(PEC)water oxidation.The 1/BiVO_(4) hybrid electrode showed significantly negative onset potential and approximately 3.7 times higher photocurrent density at 1.23 V versus reversible hydrogen electrode(RHE)compared with the bare BiVO_(4).The mechanisms for the improved PEC efficiency were investigated and mainly ascribed to enhanced water oxidation kinetics and increased charge separation and transfer properties.This work provides a promising OEC candidate for PEC water oxidation and sheds light on the attractive application prospect of IOHPs for solar water splitting.展开更多
The inorganic-organic S-scheme heterojunction photocatalyst demonstrates exceptional light absorption capacity,high photogenerated charge separation efficiency,and remarkable redox ability,while also inheriting divers...The inorganic-organic S-scheme heterojunction photocatalyst demonstrates exceptional light absorption capacity,high photogenerated charge separation efficiency,and remarkable redox ability,while also inheriting diverse advantages of both inorganic and organic semiconductors.This paper provides a comprehensive review of recent advances in photocatalysis in relation to the inorganic-organic S-scheme heterojunction photocatalyst.Firstly,the fundamental aspects and benefits of the S-scheme heterojunction photocatalyst are outlined,followed by a discussion of several synthetic techniques for producing the inorganic-organic S-scheme heterojunction photocatalyst,as well as various advanced characterization methods that can verify the S-scheme heterojunction photocatalyst in both steady-state and transient processes.The impact of the inorganic-organic S-scheme heterojunction photocatalyst is illustrated with examples in fields such as carbon dioxide reduction,water splitting for hydrogen production,hydrogen peroxide synthesis,nitrogen fixation,organic pollutant degradation,organic transformation,and sterilization.Finally,suggestions are presented for designing the inorganic-organic S-scheme heterojunction photocatalyst and enhancing its photocatalytic performance.Undoubtedly,the inorganic-organic Sscheme heterojunction photocatalyst has emerged as a prominent and promising technology in the field of photocatalysis.展开更多
A 3D nanostructured scaffold as the host for zinc enables effective inhibition of anodic dendrite growth.However,the increased electrode/electrolyte interface area provided by using 3D matrices exacerbates the passiva...A 3D nanostructured scaffold as the host for zinc enables effective inhibition of anodic dendrite growth.However,the increased electrode/electrolyte interface area provided by using 3D matrices exacerbates the passivation and localized corrosion of the Zn anode,ultimately bringing about the degradation of the electrochemical performance.Herein,a nanoscale coating of inorganic-organic hybrid(α-In_(2)Se_(3)-Nafion)onto a flexible carbon nanotubes(CNTs)framework(ISNF@CNTs)is designed as a Zn plating/stripping scaffold to ensure uniform Zn nucleation,thus achieving a dendrite-free and durable Zn anode.The intro-duced inorganic-organic interfacial layer is dense and sturdy,which hinders the direct exposure of deposited Zn to electrolytes and mitigates the side reactions.Meanwhile,the zincophilic nature of ISNF can largely reduce the nucleation energy barrier and promote the ion-diffusion transportation.Consequently,the ISNF@CNTs@Zn electrode exhibits a low-voltage hysteresis and a superior cycling life(over 1500 h),with dendrite-free Zn-plating behaviors in a typical symmetrical cell test.Additionally,the superior feature of ISNF@CNTs@Zn anode is further demonstrated by Zn-MnO_(2)cells in both coin and flexible quasi-solid-state configurations.This work puts forward an inspired remedy for advanced Zn-ion batteries.展开更多
Among the present three types of electric field-induced luminescence we noticed similarities between the inorganic and organic materials in electric field intensity. In this high electric field range SiO2 has three fu...Among the present three types of electric field-induced luminescence we noticed similarities between the inorganic and organic materials in electric field intensity. In this high electric field range SiO2 has three functions: acceleration,excitation and multiplication of electrons. Based on the acceleration effect, cathodoluminescence-like emission of organic molecules and polymers was found. By using the three functions of SiO2 or II-VI compounds and the heterojunction of inorganic and organic material we realized different variants of mixed excitation in electroluminescence.展开更多
A novel compound constructed from polyoxometalate (H3PW12O40,PW12) and poly(amidoamine) (PA) was prepared at room temperature in an aqueous solution by an impregnation method.A series of novel 1,3,5-triaryl-2-pyrazoli...A novel compound constructed from polyoxometalate (H3PW12O40,PW12) and poly(amidoamine) (PA) was prepared at room temperature in an aqueous solution by an impregnation method.A series of novel 1,3,5-triaryl-2-pyrazoline derivatives was synthesized by the reaction between chalcone and phenylhydrazine in the presence of the title compound,PW12/PA,in high yields.The structures of the compounds obtained were determined by IR and 1H NMR spectra.展开更多
Pb-Sn mixed perovskites are becoming increasingly popular as narrowbandgap(1.2–1.3 eV)light absorbers in single-junction perovskite solar cells(PSCs)and as bottom cells for all-perovskite tandem solar cells,for highe...Pb-Sn mixed perovskites are becoming increasingly popular as narrowbandgap(1.2–1.3 eV)light absorbers in single-junction perovskite solar cells(PSCs)and as bottom cells for all-perovskite tandem solar cells,for highefficiency,low-cost,lightweight,roll-to-roll printable photovoltaic(PV)applications.From the first report of planar Pb:Sn mixed PSCs in 2014,the power conversion efficiencies(PCE)have increased from 10%to 21%by the end of 2020 with an exponential growth in research conducted in this field.Despite much effort,the performance and stability of Pb-Sn mixed PSCs are still limited,which constrains their long-term use in all-perovskite tandem devices.This review highlights the avenues explored in improving different aspects of Pb-Sn mixed PSCs and provides a comprehensive discussion of the interdependent factors affecting the device performance.This includes compositional engineering of the perovskite crystal,absorber layer fabrication and crystallization methods,bandgap tuning,Sn4+reduction,and surface passivation of the absorber layer,as well as the selection of interlayers and electrodes of the final PSC.展开更多
A novel hetero-bimetallic transition metal(Sb^(Ⅴ)/Mn^(Ⅱ))-substituted Krebs-type polyoxometalate(POM)with N-chelating ligand H_(4)Na_(4)[Mn_(4)(H_(2)O)_(4)(trz)_(2)(SbO_(2))_(2)(SbW_(9)O_(33))_(2)]-20H_(2)O(Sb_(2)Mn...A novel hetero-bimetallic transition metal(Sb^(Ⅴ)/Mn^(Ⅱ))-substituted Krebs-type polyoxometalate(POM)with N-chelating ligand H_(4)Na_(4)[Mn_(4)(H_(2)O)_(4)(trz)_(2)(SbO_(2))_(2)(SbW_(9)O_(33))_(2)]-20H_(2)O(Sb_(2)Mn_(2))(1)(trz=1,2,4-triazole)built from trilacunary Keggin POM unitα-B-[SbW_(9)O_(33)]^(9-){SbW_(9)]has been synthesized and characterized by single-crystal/powder X-ray diffraction and a wide range of analytical methods,including powder X-ray diffraction,Fourier transform infrared spectroscopy,Raman,ultraviolet-visible spectroscopy,electrospray ionization-mass spectroscopy,and thermogravimetric analysis.To further investigate the antitumor activity of the(Sb_(2)Mn_(2))(1)in human gastric cancer Human Gastric Adenocarcinoma Cells and Human Gastric Cancer Cell lines,in vitro cytotoxicity assay and flow cytometry analysis was performed.The results indicated that the IC_(50) values of(Sb_(2)Mn_(2))(1)on Human Gastric Adenocarcinoma(AGS)and Human Gastric Cancer(BGC-823)Cell Lines were 1.86±0.05μmol·L^(-1) and 14.61±0.55μmol·L^(-1),respectively.(Sb_(2)Mn_(2))(1)also exhibited high cytotoxicity on Human Gastric Cancer Cells and could induce cell apoptosis by inhibiting S and G_(2)/M cell cycles.Therefore,the result not only shows that this new POM-based inorganic-organic hybrid compound has high selectivity and low toxicity,but also provides an effective method for the development of potential transition metal-substituted POMs based antitumor drugs.展开更多
(C6H(14)N2)[NH4(ClO4)3] is a newly developed porous hybrid inorganic-organic framework material with easy access and excellent detonation performances,however,its thermal properties is still unclear and severely hampe...(C6H(14)N2)[NH4(ClO4)3] is a newly developed porous hybrid inorganic-organic framework material with easy access and excellent detonation performances,however,its thermal properties is still unclear and severely hampered further applications.In this study,thermal behaviors and non-isothermal decomposition reaction kinetics of(C6H(14)N2)[NH4(ClO4)3] were investigated systematically by the combination of differential scanning calorimetry(DSC) and simultaneous thermal analysis methods.In-situ FTIR spectroscopy technology was applied for investigation of the structure changes of(C6H(14)N2) NH4(ClO4)3]and some selected referents for better understanding of interactions between different components during the heating process.Experiment results indicated that the novel molecular perovskite structure renders(C6H(14)N2)[NH4(ClO4)3] better thermal stability than most of currently used energetic materials.Underhigh temperature s,the stability of the cage skeleton constructed by NH4^+and ClO4^-ions determined the decomposition process rather than organic moiety confined in the skeleton.The simple synthetic method,good detonation performances and excellent thermal properties make(C6H(14)N2)[NH4(ClO4)3] an ideal candidate for the preparation of advanced explosives and propellants.展开更多
For the first time in 2009,the inorganic-organic hybrid perovskite materials were applied in liquid dye-sensitized solar cells.In 2013,the power conversion efficiency successfully reached 15%,followed by great amount ...For the first time in 2009,the inorganic-organic hybrid perovskite materials were applied in liquid dye-sensitized solar cells.In 2013,the power conversion efficiency successfully reached 15%,followed by great amount of research papers bursting out.Till August 2014,the highest efficiency is certified to 17.9%,and the reported efficiency is even up to 19.3%.They quickly go beyond dye-sensitized solar cells and organic solar cells.It is expected the perovskite has its efficiency same to the single-crystal silicon cells.The“game changer”of solar cells is coming.The perovskite solar cells are cheap and easily to be made,which will benefit both science and industry.This review summarized recent development of both perovskite materials and solar cell devices,not only including new material developments of perovskite compositions,structures,and fabrication methods,but also focusing on device structures,charge transfer mechanism and stability properties of perovskite solar cells.Their perspective is also estimated.展开更多
The purpose of this work is to synthesize a new type of bentonite sorbent that can simultaneously remove both organic compounds and phosphate from water.Inorgan-ic-organic bentonites(Al-CTMAB-Bent)were synthesized by ...The purpose of this work is to synthesize a new type of bentonite sorbent that can simultaneously remove both organic compounds and phosphate from water.Inorgan-ic-organic bentonites(Al-CTMAB-Bent)were synthesized by modifying bentonites with both AlCl3 and cetyltrimethyl ammonium bromide(CTMAB).Simultaneous sorption of aqueous phenanthrene and phosphate onto Al-CTMAB-Bent was examined.Removal rates of phenanthrene and phosphate from water reached 96.3% and 90.2%,respectively,at their respective initial concentrations of 1 mg/L and 5 mg/L and the added amount of Al-CTMAB-Bent was 1.25 g/L.The residual turbidity of the Al-CTMAB-Bent suspension decreased 81.4% compared to that of organobentonite sus-pension after a 1 h settling time.Thus,inorganic-organic ben-tonite can be used to treat wastewater containing both organic pollutants and phosphate.展开更多
Fabrication of well-designed heterojunctions is an extraordinarily attractive pathway for boosting the photocatalytic activity toward CO_(2) photoreduction.Herein,a novel kind of na nosheet-based intercalation hybrid ...Fabrication of well-designed heterojunctions is an extraordinarily attractive pathway for boosting the photocatalytic activity toward CO_(2) photoreduction.Herein,a novel kind of na nosheet-based intercalation hybrid coupled with CdSe quantum dots(QDs) was successfully fabricated by a facile solvothermal method and served as photocatalyst for full-spectrum-light-driven CO_(2) reduction.Ultra-small CdSe QDs were rationally in-situ introduced and coupled with lamellar ZnSe-intercalation hybrid nanosheet,resulting in the formation of CdSe Q.Ds/ZnSe hybrid heterojunction.Significantly,the concentration of Cd^(2+) could change directly the crystallinity and micromorphology of ZnSe intercalation hybrid,which in turn would impact on the photocatalysis activity.The optimized CdSe QDs/ZnSe hybrid-5 composite demonstrated a considerable CO yield rate of the 25.6 μmol g^(-1) h^(-1) without any additional cocatalysts or sacrificial agents assisting,making it one of the best reported performance toward CO_(2) photoreduction under full-spectrum light.The elevated CO_(2) photoreduction activity could be attributed to the special surface heterojunction,leading to improving the ability of light absorption and promoting the separation/transfer of photogenerated carriers.This present study developed a new strategy for designing inorganic-organic heterojunctions with enhanced photocatalyst for CO_(2) photoreduction and provided an available way to simultaneously mitigate the greenhouse effect and alleviate energy shortage pressure.展开更多
文摘A unique ionic hybrid material[C_6H_(12)N_5O]_3[(PO_4)W__(12)O_(36)]·5H_2O has been synthesized from the reaction of((1H-tetrazole-5- yl)methyl)morpholine andα-H_3[(PO_4)W_(12)O_(36)]·21H_2O.It has successfully been characterized by elemental analysis,IR and ~1H NMR spectroscopies,TGA and single-crystal X-ray diffraction method.The title compound is constructed from the three [C_6H_(12)N_5O]^+ cations andα-Keggin[(PO_4)W_(12)O_(36)]^(3-) polyoxoanion.The most remarkable structural feature of this hybrid ...
基金Supported by the National Natural Science Foundation of China.
文摘An inorganic-organic hybrid compound, [H3NC2H4NH2]VOPO4 was synthesized by meansof the hydrothermal method. It was crystallized in a monoclinic system, a space group P21/c,with the crystal cell parameters: a=0. 922 85(11) nm, b=0. 729 94(9) nm, c=0. 984 95(11)nm, β=101. 280(3)°, V=0. 650 67(13) nm3, Mr=223.02 g/mol, Dc=2. 277 g/cm3, Z=4,R= 0. 031 5, ωR= 0. 086 5, GOF = 1. 085. The VO5N octahedra chains are corner-linked byPO4 tetrahedra; the VOsN octahedra are all trans-linked with V-O bonds being alternately short and long. The monoprotonated ethylenediamine was intercalated between the layers with one end coordinating to V and the other end as an H-bond donor interacting with a terminal O atom of PO4 from a neighboring sheet. The elementary analysis, infrared spectrum characters and thermal stability were also given.
基金Project supported by the National Natural Science Foundation of China(22172022,21872021,21671033,21901135)。
文摘Four rare earth inorganic-organic hybrid compounds based on Keggin-type polyoxometalate {SiW_(12)}with general formula [{RE(DMF)_(4)(H_(2)O)_4RE(DMF)_(6)}_(2){SiW_(12)O_(40)}_(3)](RE = La(1),Pr(2),Sm(3),Eu(4),DMF=N,N-dimethylformamide) were synthesized by the conventional solution method.Structure analyses indicate that four compounds are isostructural and are all built from three [SiW_(12)O_(40)]^(4-) polyoxoanions and DMF ligands linked by RE^(3+).Compounds 1-4 are extremely sensitive to UV light and present excellent photochromic properties,in which the coloring and fading time of samples are both no more than 2 min,and the reversible coloring-fading process can be repeated for at least 10 cycles with little fatigue,suggesting that compounds 1-4 can be a series of fast-responsive and durable photochromic materials.Moreover,the solid-state photoluminescence spectra of compounds 3(Sm) and 4(Eu)display strong characteristic emissions of rare earth ions based on f-f transitions.Meanwhile,compound4(Eu) has a longer fluorescence lifetime up to 566.74 μs.Notably,co mpounds 3(Sm) and 4(Eu) exhibit the switchable luminescence behavior induced by photochromism,which allows them to be used as potential molecular switches.
基金Supported by the State Basic Research Project (2006CB806100)Outstanding Young Scientist Foundation of the National Natural Science Foundation of China (20625102)+3 种基金the National Natural Science Foundation of China (Grant Nos. 20831D02, 20571030, 20531030, and 20371020)"111" Program of Ministry of Education of China and Bureau of Science & Technology of Jilin ProvinceJilin Province Hi-Tech Development Project (20090131)International Cooperation Project of Ministry of Science and Technology (2007DFA40830)
文摘Two new inorganic-organic hybrid polymers, Mn(QS)(H2O) (1) and Co(QS)(H2O)2 (2) (H2QS=8-hydroxyl-quinoline-5-sulfonic acid), based on 8-hydroxylquinoline-5-sulfonate ligand, have been synthesized under solvothermal conditions and their structures were solved by single-crystal X-ray diffraction analysis. Compound 1 is a three-dimensional open framework with rutile topology structure, and compound 2 is a three-dimensional supramolecular structure. These compounds were characterized by powder XRD, infrared spectroscopy, thermogravimetric analysis, fluorescence properties and magnetism properties.
基金supported by the National Key Research and Development Program of China from Ministry of Science and Technology(2016YFC1100502)Key Research Program of Frontier Sciences(QYZDY-SSW-JSC031)+1 种基金from Chinese Academy of Sciences(CAS),Key Research and Development Program of Liaoning Province(201703031)Shenyang Key R&D and Technology Transfer Program(Z17-7-023).
文摘Amorphous calcium phosphate(ACP)has been widely found during bone and tooth biomineralization,but the meta-stability and labile nature limit further biomedical applications.The present study found that the chelation of polyacrylic acid(PAA)molecules with Ca^(2+)ions in Mg-ACP clusters(~2.1±0.5 nm)using a biomineralization strategy produced inorganic-organic Mg-ACP/PAA hybrid nanoparticles with better thermal stability.Mg-ACP/PAA hybrid nanoparticles(~24.0±4.8 nm)were pH-responsive and could be efficiently digested under weak acidic conditions(pH 5.0-5.5).The internalization of assembled Mg-ACP/PAA nanoparticles by MC3T3-E1 cells occurred through endocytosis,indicated by laser scanning confocal microscopy and cryo-soft X-ray tomography.Our results showed that cellular lipid membranes remained intact without pore formation after Mg-ACP/PAA particle penetration.The assembled Mg-ACP/PAA particles could be digested in cell lysosomes within 24 h under weak acidic conditions,thereby indicating the potential to efficiently deliver encapsulated functional molecules.Both the in vitro and in vivo results preliminarily demonstrated good biosafety of the inorganic-organic Mg-ACP/PAA hybrid nanoparticles,which may have potential for biomedical applications.
基金supported by the Fundamental Research Funds for Central Public Welfare Scientific Research Institutes of China(No.2019-YSKY-009)the Major Science and Technology Projects for Water Pollution Control and Treatment(No.2017ZX07004)。
文摘Granular porous sorbents were normally used for heavy metals removal from water.To search for the new commercial sorbent and treatment strategy,an organic acrylic amine fiber(AAF)and phosphorus loading inorganic-organic AAF(P-AAF)were prepared and used for lead(Pb)removal from water.A new strategy of inorganic-organic coupling technology was proposed for Pb removal,based on the hypothesis of surface-induced precipitation mechanism.The AAF showed a Pb adsorption capacity of 417 mg/g from the Langmuir fitting,while the column filtration technology was further applied to measure the adsorption edge and applications.Effects of different initial Pb concentrations,hydraulic retention time,and co-existing P were considered in the filtration experiments.The presence of 0.8 mg/L P in water significantly improved the Pb breakthrough point from 15,000 to 41,000 bed volumes of water spiked with 85μg/L Pb,while the P-AAF fixed bed showed better removal of Pb than AAF SEM/EDX and XRD spectra were employed for determining the surface functional groups and the formation of surface-induced precipitation of pyromorphite(Pb_5(PO_4)_3 OH)on AAF.This study verified the application of AAF sorbent for Pb removal and the enhanced effect of coating P on AAF,thus improved our fundamental understanding and application of the surface chemistry process of Pb with P.
文摘1 Results In order to develop high capacity anode materials for enhancing the performance of lithium-ion batteries,silicon (Si) and a variety of metals that alloy with lithium,such as Sn,Sb,and Al,were studied and found to be promising candidates as anode materials[1-4].Among them,Si appears to be the most attractive candidate due to its large theoretical lithium insertion capacity of 4 200 mAh g-1[1].Unfortunately,there is one severe problem with the application of Si anode,i.e., the large volume chang...
基金supported by the National Natural Science Foundation of China(Nos.21771180,21971239)Natural Science Foundation of Fujian Province(No.2020J06032)。
文摘Here we report the utilization of inorganic-organic hybrid(IOH)as a new type of cathode material for aqueous Zn-ion batteries.The IOH possessing a unique lattice-water-rich layered structure achieves high long-term cycling stability(81.5%capacity retention over 1500 cycles)and ultrafast charging capability(~90%state of charge about 1 minute).
基金The authors gratefully acknowledge financial support of the National Natural Science Foundation of China(grant no.21071156)the Natural Science Foundation of Chongqing(grant nos.cstc2019jcyj-msxmX0170 and cstc2020jcyj-msxmX0735).
文摘Oxygen evolution cocatalysts(OECs)play important roles in improving the efficiency of photocatalysts in solar water splitting.Inorganic–organic hybrid polymers(IOHPs),which have good electrolyte accessibility and evenly distributed active sites,are expected to be promising OECs.Here,a novel IOHP[Co(Bpn)_(2)(SCN)_(2)]n(1,Bpn=2,6-bis(4-pyridyl)-naphthalene,SCN=thiocyanate ion)exhibited a two-dimensional(2D)layer structure with(4,4)topology,was constructed by Bpn ligands connecting Co(II)ions,and was decorated on BiVO_(4) photoanodes for photoelectrochemical(PEC)water oxidation.The 1/BiVO_(4) hybrid electrode showed significantly negative onset potential and approximately 3.7 times higher photocurrent density at 1.23 V versus reversible hydrogen electrode(RHE)compared with the bare BiVO_(4).The mechanisms for the improved PEC efficiency were investigated and mainly ascribed to enhanced water oxidation kinetics and increased charge separation and transfer properties.This work provides a promising OEC candidate for PEC water oxidation and sheds light on the attractive application prospect of IOHPs for solar water splitting.
基金the National Natural Science Foundation of China(Nos.22278169 and 51973078)the Excellent scientific research and innovation team of the Education Department of Anhui Province(No.2022AH010028)the Major projects of the Education Department of Anhui Province(No.2022AH040068).
文摘The inorganic-organic S-scheme heterojunction photocatalyst demonstrates exceptional light absorption capacity,high photogenerated charge separation efficiency,and remarkable redox ability,while also inheriting diverse advantages of both inorganic and organic semiconductors.This paper provides a comprehensive review of recent advances in photocatalysis in relation to the inorganic-organic S-scheme heterojunction photocatalyst.Firstly,the fundamental aspects and benefits of the S-scheme heterojunction photocatalyst are outlined,followed by a discussion of several synthetic techniques for producing the inorganic-organic S-scheme heterojunction photocatalyst,as well as various advanced characterization methods that can verify the S-scheme heterojunction photocatalyst in both steady-state and transient processes.The impact of the inorganic-organic S-scheme heterojunction photocatalyst is illustrated with examples in fields such as carbon dioxide reduction,water splitting for hydrogen production,hydrogen peroxide synthesis,nitrogen fixation,organic pollutant degradation,organic transformation,and sterilization.Finally,suggestions are presented for designing the inorganic-organic S-scheme heterojunction photocatalyst and enhancing its photocatalytic performance.Undoubtedly,the inorganic-organic Sscheme heterojunction photocatalyst has emerged as a prominent and promising technology in the field of photocatalysis.
基金Natural Science Foundation for Young Scientists of Henan Province,Grant/Award Number:202300410071Key Research Project of Henan Provincial Higher Education,Grant/Award Number:21A140007National Natural Science Foundation of China,Grant/Award Numbers:62174049,52003073,52102285。
文摘A 3D nanostructured scaffold as the host for zinc enables effective inhibition of anodic dendrite growth.However,the increased electrode/electrolyte interface area provided by using 3D matrices exacerbates the passivation and localized corrosion of the Zn anode,ultimately bringing about the degradation of the electrochemical performance.Herein,a nanoscale coating of inorganic-organic hybrid(α-In_(2)Se_(3)-Nafion)onto a flexible carbon nanotubes(CNTs)framework(ISNF@CNTs)is designed as a Zn plating/stripping scaffold to ensure uniform Zn nucleation,thus achieving a dendrite-free and durable Zn anode.The intro-duced inorganic-organic interfacial layer is dense and sturdy,which hinders the direct exposure of deposited Zn to electrolytes and mitigates the side reactions.Meanwhile,the zincophilic nature of ISNF can largely reduce the nucleation energy barrier and promote the ion-diffusion transportation.Consequently,the ISNF@CNTs@Zn electrode exhibits a low-voltage hysteresis and a superior cycling life(over 1500 h),with dendrite-free Zn-plating behaviors in a typical symmetrical cell test.Additionally,the superior feature of ISNF@CNTs@Zn anode is further demonstrated by Zn-MnO_(2)cells in both coin and flexible quasi-solid-state configurations.This work puts forward an inspired remedy for advanced Zn-ion batteries.
基金Project was supported by the National Natural Science Foundation of China (Grant No. 29992530 and 19974002).
文摘Among the present three types of electric field-induced luminescence we noticed similarities between the inorganic and organic materials in electric field intensity. In this high electric field range SiO2 has three functions: acceleration,excitation and multiplication of electrons. Based on the acceleration effect, cathodoluminescence-like emission of organic molecules and polymers was found. By using the three functions of SiO2 or II-VI compounds and the heterojunction of inorganic and organic material we realized different variants of mixed excitation in electroluminescence.
基金supported by the Islamic Azad University,Shahreza Branch and the Research Affairs Division Isfahan University of Technology(IUT)
文摘A novel compound constructed from polyoxometalate (H3PW12O40,PW12) and poly(amidoamine) (PA) was prepared at room temperature in an aqueous solution by an impregnation method.A series of novel 1,3,5-triaryl-2-pyrazoline derivatives was synthesized by the reaction between chalcone and phenylhydrazine in the presence of the title compound,PW12/PA,in high yields.The structures of the compounds obtained were determined by IR and 1H NMR spectra.
基金R.M.I.B.and S.M.S.gratefully acknowledge support from the University of Surrey scholarshipsR.M.I.B.,R.A.S.,C.C.L.U.,and S.R.P.S.also acknowledge funding from EPSRC(EP/R028559/1 and GR/1922310/1)+1 种基金S.M.S.and S.R.P.S acknowledge support SilverRay Ltd.K.D.G.I.J.and S.R.P.S.gratefully acknowledgefinancial support from the Equality Foundation of Hong Kong.
文摘Pb-Sn mixed perovskites are becoming increasingly popular as narrowbandgap(1.2–1.3 eV)light absorbers in single-junction perovskite solar cells(PSCs)and as bottom cells for all-perovskite tandem solar cells,for highefficiency,low-cost,lightweight,roll-to-roll printable photovoltaic(PV)applications.From the first report of planar Pb:Sn mixed PSCs in 2014,the power conversion efficiencies(PCE)have increased from 10%to 21%by the end of 2020 with an exponential growth in research conducted in this field.Despite much effort,the performance and stability of Pb-Sn mixed PSCs are still limited,which constrains their long-term use in all-perovskite tandem devices.This review highlights the avenues explored in improving different aspects of Pb-Sn mixed PSCs and provides a comprehensive discussion of the interdependent factors affecting the device performance.This includes compositional engineering of the perovskite crystal,absorber layer fabrication and crystallization methods,bandgap tuning,Sn4+reduction,and surface passivation of the absorber layer,as well as the selection of interlayers and electrodes of the final PSC.
基金This work was supported by the National Natural Science Foundation of China(No.21971221,21401162)the Yangzhou University Interdisciplinary Research Foundation for Chemistry Discipline(yzuxk202010)+2 种基金Qing Lan Project in Colleges and Universities of Jiangsu ProvinceInnovation and entrepreneurship training programs for college students in Jiangsu(202211117066Z)Y.Zhang acknowledges supports from Guangxi Natural Science Foundation(AD20238043,2018GXNSFDA281002)。
文摘A novel hetero-bimetallic transition metal(Sb^(Ⅴ)/Mn^(Ⅱ))-substituted Krebs-type polyoxometalate(POM)with N-chelating ligand H_(4)Na_(4)[Mn_(4)(H_(2)O)_(4)(trz)_(2)(SbO_(2))_(2)(SbW_(9)O_(33))_(2)]-20H_(2)O(Sb_(2)Mn_(2))(1)(trz=1,2,4-triazole)built from trilacunary Keggin POM unitα-B-[SbW_(9)O_(33)]^(9-){SbW_(9)]has been synthesized and characterized by single-crystal/powder X-ray diffraction and a wide range of analytical methods,including powder X-ray diffraction,Fourier transform infrared spectroscopy,Raman,ultraviolet-visible spectroscopy,electrospray ionization-mass spectroscopy,and thermogravimetric analysis.To further investigate the antitumor activity of the(Sb_(2)Mn_(2))(1)in human gastric cancer Human Gastric Adenocarcinoma Cells and Human Gastric Cancer Cell lines,in vitro cytotoxicity assay and flow cytometry analysis was performed.The results indicated that the IC_(50) values of(Sb_(2)Mn_(2))(1)on Human Gastric Adenocarcinoma(AGS)and Human Gastric Cancer(BGC-823)Cell Lines were 1.86±0.05μmol·L^(-1) and 14.61±0.55μmol·L^(-1),respectively.(Sb_(2)Mn_(2))(1)also exhibited high cytotoxicity on Human Gastric Cancer Cells and could induce cell apoptosis by inhibiting S and G_(2)/M cell cycles.Therefore,the result not only shows that this new POM-based inorganic-organic hybrid compound has high selectivity and low toxicity,but also provides an effective method for the development of potential transition metal-substituted POMs based antitumor drugs.
基金supported by the National Natural Science Foundation of China(Nos.21805226 and 21805223)the China Postdoctoral Science Foundation(No.2018M633552)China Scholarship Council(No.201805290006)。
文摘(C6H(14)N2)[NH4(ClO4)3] is a newly developed porous hybrid inorganic-organic framework material with easy access and excellent detonation performances,however,its thermal properties is still unclear and severely hampered further applications.In this study,thermal behaviors and non-isothermal decomposition reaction kinetics of(C6H(14)N2)[NH4(ClO4)3] were investigated systematically by the combination of differential scanning calorimetry(DSC) and simultaneous thermal analysis methods.In-situ FTIR spectroscopy technology was applied for investigation of the structure changes of(C6H(14)N2) NH4(ClO4)3]and some selected referents for better understanding of interactions between different components during the heating process.Experiment results indicated that the novel molecular perovskite structure renders(C6H(14)N2)[NH4(ClO4)3] better thermal stability than most of currently used energetic materials.Underhigh temperature s,the stability of the cage skeleton constructed by NH4^+and ClO4^-ions determined the decomposition process rather than organic moiety confined in the skeleton.The simple synthetic method,good detonation performances and excellent thermal properties make(C6H(14)N2)[NH4(ClO4)3] an ideal candidate for the preparation of advanced explosives and propellants.
基金the National Natural Science Foundation of China(Nos.61177020,11121091)the National Basic Research Program of China(No.2013CB921904).
文摘For the first time in 2009,the inorganic-organic hybrid perovskite materials were applied in liquid dye-sensitized solar cells.In 2013,the power conversion efficiency successfully reached 15%,followed by great amount of research papers bursting out.Till August 2014,the highest efficiency is certified to 17.9%,and the reported efficiency is even up to 19.3%.They quickly go beyond dye-sensitized solar cells and organic solar cells.It is expected the perovskite has its efficiency same to the single-crystal silicon cells.The“game changer”of solar cells is coming.The perovskite solar cells are cheap and easily to be made,which will benefit both science and industry.This review summarized recent development of both perovskite materials and solar cell devices,not only including new material developments of perovskite compositions,structures,and fabrication methods,but also focusing on device structures,charge transfer mechanism and stability properties of perovskite solar cells.Their perspective is also estimated.
基金This work was supported by the National Natural Science Foundation of China(Grant No.50378081)the National High-Tech Research and Development(863)Program of China(Grant No.2002AA302305).
文摘The purpose of this work is to synthesize a new type of bentonite sorbent that can simultaneously remove both organic compounds and phosphate from water.Inorgan-ic-organic bentonites(Al-CTMAB-Bent)were synthesized by modifying bentonites with both AlCl3 and cetyltrimethyl ammonium bromide(CTMAB).Simultaneous sorption of aqueous phenanthrene and phosphate onto Al-CTMAB-Bent was examined.Removal rates of phenanthrene and phosphate from water reached 96.3% and 90.2%,respectively,at their respective initial concentrations of 1 mg/L and 5 mg/L and the added amount of Al-CTMAB-Bent was 1.25 g/L.The residual turbidity of the Al-CTMAB-Bent suspension decreased 81.4% compared to that of organobentonite sus-pension after a 1 h settling time.Thus,inorganic-organic ben-tonite can be used to treat wastewater containing both organic pollutants and phosphate.
基金supported by the National Natural Science Foundation of China (Nos.51902266 and 22002185)the Fundamental Research Funds for the Central Universities (Nos.310201QD0410 and 3102019ZD0403)+2 种基金the Natural Science Foundation of Beijing (No.2204100)Natural Science Foundation of Shaanxi (No.2020JQ-143)supported by the Research Fund of the State Key Laboratory of Solidification Processing (NPU),China (No.2019-TS-12)。
文摘Fabrication of well-designed heterojunctions is an extraordinarily attractive pathway for boosting the photocatalytic activity toward CO_(2) photoreduction.Herein,a novel kind of na nosheet-based intercalation hybrid coupled with CdSe quantum dots(QDs) was successfully fabricated by a facile solvothermal method and served as photocatalyst for full-spectrum-light-driven CO_(2) reduction.Ultra-small CdSe QDs were rationally in-situ introduced and coupled with lamellar ZnSe-intercalation hybrid nanosheet,resulting in the formation of CdSe Q.Ds/ZnSe hybrid heterojunction.Significantly,the concentration of Cd^(2+) could change directly the crystallinity and micromorphology of ZnSe intercalation hybrid,which in turn would impact on the photocatalysis activity.The optimized CdSe QDs/ZnSe hybrid-5 composite demonstrated a considerable CO yield rate of the 25.6 μmol g^(-1) h^(-1) without any additional cocatalysts or sacrificial agents assisting,making it one of the best reported performance toward CO_(2) photoreduction under full-spectrum light.The elevated CO_(2) photoreduction activity could be attributed to the special surface heterojunction,leading to improving the ability of light absorption and promoting the separation/transfer of photogenerated carriers.This present study developed a new strategy for designing inorganic-organic heterojunctions with enhanced photocatalyst for CO_(2) photoreduction and provided an available way to simultaneously mitigate the greenhouse effect and alleviate energy shortage pressure.