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固体表面荧光法测定吸附于白骨壤和木榄叶片上的蒽 被引量:7
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作者 杜克钊 朱亚先 +1 位作者 王萍 张勇 《分析试验室》 CAS CSCD 北大核心 2009年第4期81-83,共3页
以新鲜白骨壤和木榄叶片为基质,建立了直接测定吸附于叶片表面蒽(An)的固体表面荧光分析法(SSF)。考察了白骨壤和木榄叶片上An的吸附量随An暴露浓度、暴露时间等因素的变化情况。方法测定吸附于白骨壤叶片上An的线性范围为0.92~8... 以新鲜白骨壤和木榄叶片为基质,建立了直接测定吸附于叶片表面蒽(An)的固体表面荧光分析法(SSF)。考察了白骨壤和木榄叶片上An的吸附量随An暴露浓度、暴露时间等因素的变化情况。方法测定吸附于白骨壤叶片上An的线性范围为0.92~8.71μg/g,检出限为5.77ng/g,加标回收率为79.2%~85.9%;测定吸附于木榄叶片上An的线性范围为89.5~698.2ng/g,检出限为1.79ng/g,加标回收率为75.1%~102.3%;对于两种叶片,方法的相对标准偏差都小于10%。 展开更多
关键词 固体表面荧光法(SSF) 蒽(An) 红树叶片
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A New One-dimensional Lanthanum Thioantimonate(Ⅴ) with Bidentate Ethylenediamine and Tetradentate Triethylenetetramine Mixed Ligands: La(teta)(en)(μ-η~1,η~2-SbS_4)
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作者 叶冬 冯美玲 +1 位作者 杜克钊 黄小荥 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2012年第6期783-790,共8页
A new inorganic-organic hybrid lanthannm thioantimonate(V) with bidentate and tetradentate mixed amino ligands, namely La(teta)(en)(μ-η1,η2-SbS4) (1, teta = triethylenetetramine, en = ethylenediamine), ha... A new inorganic-organic hybrid lanthannm thioantimonate(V) with bidentate and tetradentate mixed amino ligands, namely La(teta)(en)(μ-η1,η2-SbS4) (1, teta = triethylenetetramine, en = ethylenediamine), has been solvothermally synthesized and structurally, thermally and optically characterized. In 1, the en ligand is in situ produced by re-aggregation of teta which plays multiple roles in the reaction as ligand, reactive solvent and precursor. Single-crystal X-ray analysis reveals that 1 belongs to the orthorhombic space group P212121. Its structure features a one-dimensional organic-inorganic hybrid chain of [La(teta)(en)(μ-η1,η2-SbS4)],, constructed by alternating arrangement of μ-η1,η2-sbvs4 tetrahedron and La(teta)(en) complex. Keywords: thioantimonate, lanthanum, amino ligand, crystal structure, optical property 展开更多
关键词 thioantimonate LANTHANUM amino ligand crystal structure optical property
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Solvothermal Synthesis,Crystal Structure and Characterizations of a Novel 2D Organic Decorated Manganese Thiostannate:MnSnS3(1,2-DACH)
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作者 戚兴辉 吴本杰 +3 位作者 杜克钊 叶晓云 冯美玲 黄小荥 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2016年第10期1546-1552,共7页
A novel 1,2-diaminocyclohexane(1,2-DACH) decorated manganese thiostannate,namely MnSnS_3(1,2-DACH)(1),has been solvothermally synthesized by the reaction of Mn(CH_3COO)_2·4H_2O,Sn and S in the stoichiomet... A novel 1,2-diaminocyclohexane(1,2-DACH) decorated manganese thiostannate,namely MnSnS_3(1,2-DACH)(1),has been solvothermally synthesized by the reaction of Mn(CH_3COO)_2·4H_2O,Sn and S in the stoichiometric ratio in 1,2-DACH,which acted as an efficient structure-directing agent(SDA) and reactive solvent in the formation of the title compound. Single-crystal X-ray diffraction studies revealed that the title compound crystallizes in the monoclinic space group P2_1/c with a = 12.2458(7),b = 13.8588(7),c = 7.2292(4) ?,β = 99.460(6)°,V = 1210.20(12) ?~3,Z = 4,Dc = 2.108 g·cm^(-3),F(000) = 748,μ = 3.584 mm^(-1),R = 0.0348 and wR = 0.0823(I 〉 2σ(I)). The structure features a neutral two-dimensional(2D) network constructed by the unsaturated [Mn(1,2-DACH)] complexes interconnecting [SnS_3]_n^(2n-) chains via sharing S. Thermal stability and optical property of compound 1 were characterized. 展开更多
关键词 manganese thiostannate two-dimensional network crystal structure
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用于卤素捕获的材料研究进展
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作者 林航青 马若茹 +3 位作者 江怡蓝 许木榕 林洋彭 杜克钊 《化学学报》 SCIE CAS CSCD 北大核心 2024年第1期62-74,共13页
卤素单质氟(F_(2))、氯(Cl_(2))、溴(Br_(2))和碘(I_(2)),在化学工业中发挥重要作用.但是由于F_(2)、Cl_(2)和Br_(2)的毒性、腐蚀性和挥发性使得它们的安全储存和运输形成了严峻的挑战,而将这些卤素单质进行吸附预固化可以有效提高它们... 卤素单质氟(F_(2))、氯(Cl_(2))、溴(Br_(2))和碘(I_(2)),在化学工业中发挥重要作用.但是由于F_(2)、Cl_(2)和Br_(2)的毒性、腐蚀性和挥发性使得它们的安全储存和运输形成了严峻的挑战,而将这些卤素单质进行吸附预固化可以有效提高它们使用的安全性.理想的卤素单质预固化材料须满足多种性能要求,如对卤素单质的稳定性、选择性、吸脱附可逆性和可加工性等,这给预固化材料的设计和合成带来了很大的挑战.目前为止,Cl_(2)和Br_(2)的预固化材料已经有不少报道(F_(2)暂时还未有),对这类材料进行总结和回顾,有助于为后续的材料优化和设计提供参考.然而,截至本文撰写之前,还未有人对Cl_(2)和Br_(2)预固化材料的研究做过综述报道.因此,通过本文综述了多孔有机聚合物(POPs)、金属有机框架(MOFs)、多孔有机笼(POCs)以及金属卤化物等在Cl_(2)和Br_(2)吸附预固化上的研究现状,从材料结构和性能的角度详细讨论了不同材料在卤素单质预固化上的机理和构效关系,旨在为卤素单质预固化材料的后续研究提供有益的借鉴,最终开发出有实际应用前景的卤素单质预固化材料,从而提高卤素单质实际应用的安全性,降低卤素单质泄露的风险,对环境保护和实现相关工业的可持续发展具有重要意义. 展开更多
关键词 卤素单质 吸附 多孔材料 金属卤化物 氧化还原
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Two New Antimony(Ⅲ)Chloride Hybrids Composed of Mononuclear[SbCl_(6)]^(3-)Unit and Ionic Liquid Cations with Different Length of Alkyl Chain
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作者 张志专 金建策 +2 位作者 宫辽阔 杜克钊 黄小荥 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2021年第9期1183-1193,1110,共12页
Two new hybrid chloroantimonates,namely,[Prmim]_(3)SbCl_(6)(1,Prmim=1-propyl-3-methylimidazolium)and[Hmim]_(3)SbCl_(6)(2,Hmim=1-hexyl-3-methylimidazolium),were synthesized in ionic liquids(ILs)with the yields of 97%an... Two new hybrid chloroantimonates,namely,[Prmim]_(3)SbCl_(6)(1,Prmim=1-propyl-3-methylimidazolium)and[Hmim]_(3)SbCl_(6)(2,Hmim=1-hexyl-3-methylimidazolium),were synthesized in ionic liquids(ILs)with the yields of 97%and 72%,respectively.Single-crystal X-ray diffraction(SCXRD)study reveals that 1 crystallizes in monoclinic,space group Pn with a=15.2988(12),b=13.6388(10),c=15.6761(13)A,β=98.677(7)°,V=3233.5(4)A^(3),Z=4,D_(c)=1.459 g·cm^(-3),F(000)=1440,μ=1.370 mm^(-1),R=0.0589 and wR=0.1366(I>2σ(I));2 crystallizes in the hexagonal space group of P63 with a=27.7471(6),b=27.7471(6),c=8.9811(2)A,V=5988.2(3)A^(3),Z=6,D_(c)=1.391 g·cm^(-3),F(000)=2592,μ=1.121 mm^(-1),R=0.0420 and wR=0.0726(I>2σ(I)).The photophysical properties of the title compounds were studied by solid-state optical absorption,photoluminescent excitation/emission(PLE/PL),PL decay spectra and photoluminescent quantum yield(PLQY).1 and 2 exhibit PL peaks at 627 and 607 nm,Stokes shifts of 257 and 242 nm,and PLQY of 32.5%and 49.2%,respectively.The distinct photo physical characteristics of 1 and 2 are highly related to the distortion extent of the[SbCl_(6)]^(3-)unit. 展开更多
关键词 antimony(Ⅲ)chloride ionic liquid luminescence distortion
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