With the deepening of the genome project study,attention on noncoding RNAs is increasing.Long noncoding RNAs(lncRNAs)have become a new research hotspot.A growing number of studies have revealed that lncRNAs are involv...With the deepening of the genome project study,attention on noncoding RNAs is increasing.Long noncoding RNAs(lncRNAs)have become a new research hotspot.A growing number of studies have revealed that lncRNAs are involved in tumorigenesis and tumor suppressor pathways.Aberrant expressions of lncRNAs have been found in a variety of human tumors including hepatocellular carcinoma(HCC).In this review,we provide a brief introduction to lncRNA and highlight recent research on the functions and clinical significance of lncRNAs in HCC.展开更多
The BiOCl(BOC)synthesized by the water bath heating method was treated with sodium borohydride(NaBH_(4))to introduce oxygen vacancies(OVs).At the same time,Au nanoparticles were loaded to prepare a series of Au/BiOCl ...The BiOCl(BOC)synthesized by the water bath heating method was treated with sodium borohydride(NaBH_(4))to introduce oxygen vacancies(OVs).At the same time,Au nanoparticles were loaded to prepare a series of Au/BiOCl samples with different ratios.OVs and Au nanoparticles can promote the light absorption of host photocatalyst in the visible region.The calculated work function of BiOCl and Au can verify the existence of Ohmic contact between the interface of them,which is conducive to the separation of charge carriers.Through a series of photoelectric tests,it was verified experimentally that the separation of charge carriers is indeed enhanced.The high-energy hot electrons produced by Au under the surface plasmon resonance(SPR)effect can increase the counts of electrons to participate in the CO_(2)reduction reaction.Especially for 1.0%-Au/BOC,the yields of CO can reach 43.16μmol g^(−1)h^(−1),which is 6.6 times more than that of BOC.Therefore,loading precious metal on semiconductors is an effective strategy to promote the photocatalytic performance of CO_(2)reduction reactions.展开更多
Surface oxygen vacancy defects and metal deposition on semiconductor photocatalysts play a critical role in photocatalytic reactions.In this work,oxygen-deficient Bi_(2)WO_(6)microspheres have been prepared by a facil...Surface oxygen vacancy defects and metal deposition on semiconductor photocatalysts play a critical role in photocatalytic reactions.In this work,oxygen-deficient Bi_(2)WO_(6)microspheres have been prepared by a facile ethylene glycol-assisted solvothermal method.Bi0 nanoparticles were reduced by in situ thermaltreatment on Bi_(2)WO_(6)microspheres to obtain Bi^(0)@Bi_(2)WO_(6)-x as well as maintaining the oxygen vacancies(OVs)under N_(2)atmosphere.Afterwards,photocatalytic NO oxidation removal activities of these photocatalysts were investigated under visible light irradiation and Bi^(0)@Bi_(2)WO_(6)-x shows the best NO removal activity than other samples.The photogenerated cha rge separation and trans fe r are promoted by Bi0 nanoparticles deposited on the surface of semiconductor catalysts.OVs defects promote the activation of reactants(H_(2)O and O_(2)),thereby enhancing the formation of the active substance.Moreover,both OVs defects and Bi0 metal have the characteristics of extending light absorption and enhancing the efficient utilization of solar energy.Besides,the photocatalytic NO oxidation mechanism of Bi^(0)@Bi_(2)WO_(6)-xwas investigated by in situ FTIR spectroscopy for reaction intermediates and final products.This work furnishes insight into the synthesis strategy and the underlying photocatalytic mecha nism of the surfacemodified Bi^(0)@Bi_(2)WO_(6)-x composite for pollutants removal.展开更多
基金supported by the National Natural Sci-ence Foundation of China(No.21972083,No.22102129)the Fundamental Research Funds for the Central Universities(GK202102008)+1 种基金the Support Program for top-notch young talents in Shaanxi Province(1511000066)the China Postdoctoral Science Foundation(2021M692615,2022T150528)。
文摘With the deepening of the genome project study,attention on noncoding RNAs is increasing.Long noncoding RNAs(lncRNAs)have become a new research hotspot.A growing number of studies have revealed that lncRNAs are involved in tumorigenesis and tumor suppressor pathways.Aberrant expressions of lncRNAs have been found in a variety of human tumors including hepatocellular carcinoma(HCC).In this review,we provide a brief introduction to lncRNA and highlight recent research on the functions and clinical significance of lncRNAs in HCC.
基金supported by the National Natural Science Foundation of China(51772183,21673118 and 21972067)the Key Research and Development Program of Shaanxi Province(2018ZDCXL-SF-02-04)+1 种基金the Natural Science Foundation of Hubei Province(2019CFB225)the Fundamental Research Funds for the Central Universities(GK201903023 and GK201801005)。
基金supported by the National Natural Science Foundation of China(Nos.51772183.52072230)the Yulin Science and Technology Project(No.CXY-2020-040)。
文摘The BiOCl(BOC)synthesized by the water bath heating method was treated with sodium borohydride(NaBH_(4))to introduce oxygen vacancies(OVs).At the same time,Au nanoparticles were loaded to prepare a series of Au/BiOCl samples with different ratios.OVs and Au nanoparticles can promote the light absorption of host photocatalyst in the visible region.The calculated work function of BiOCl and Au can verify the existence of Ohmic contact between the interface of them,which is conducive to the separation of charge carriers.Through a series of photoelectric tests,it was verified experimentally that the separation of charge carriers is indeed enhanced.The high-energy hot electrons produced by Au under the surface plasmon resonance(SPR)effect can increase the counts of electrons to participate in the CO_(2)reduction reaction.Especially for 1.0%-Au/BOC,the yields of CO can reach 43.16μmol g^(−1)h^(−1),which is 6.6 times more than that of BOC.Therefore,loading precious metal on semiconductors is an effective strategy to promote the photocatalytic performance of CO_(2)reduction reactions.
基金supported by the National Natural Science Foundation of China(No.51772183)the key Research and Development Program of Shaanxi Province(No.2018ZDCXL-SF-02-04)the Fundamental Research Funds for the Central Universities(Nos.GK201903023 and GK201801005)。
文摘Surface oxygen vacancy defects and metal deposition on semiconductor photocatalysts play a critical role in photocatalytic reactions.In this work,oxygen-deficient Bi_(2)WO_(6)microspheres have been prepared by a facile ethylene glycol-assisted solvothermal method.Bi0 nanoparticles were reduced by in situ thermaltreatment on Bi_(2)WO_(6)microspheres to obtain Bi^(0)@Bi_(2)WO_(6)-x as well as maintaining the oxygen vacancies(OVs)under N_(2)atmosphere.Afterwards,photocatalytic NO oxidation removal activities of these photocatalysts were investigated under visible light irradiation and Bi^(0)@Bi_(2)WO_(6)-x shows the best NO removal activity than other samples.The photogenerated cha rge separation and trans fe r are promoted by Bi0 nanoparticles deposited on the surface of semiconductor catalysts.OVs defects promote the activation of reactants(H_(2)O and O_(2)),thereby enhancing the formation of the active substance.Moreover,both OVs defects and Bi0 metal have the characteristics of extending light absorption and enhancing the efficient utilization of solar energy.Besides,the photocatalytic NO oxidation mechanism of Bi^(0)@Bi_(2)WO_(6)-xwas investigated by in situ FTIR spectroscopy for reaction intermediates and final products.This work furnishes insight into the synthesis strategy and the underlying photocatalytic mecha nism of the surfacemodified Bi^(0)@Bi_(2)WO_(6)-x composite for pollutants removal.
