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Synthesis, Crystal Structure and Property of Cu Pb_2(OH)_2Cl_3

Chinese Journal of Structural Chemistry 2015年第4期34卷 594-598页

作者：黄荣荣张素允崔美艳徐军何长振 College of Materials Science and Engineering Wuhan Institute of Technology State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences

A new copper（1）-lead（Ⅱ） oxyhalide, CuPb2（OH）2Cl3, has been prepared by hydrothermal reaction and structurally characterized by single-crystal X-ray analysis. The compound crystallizes in tetragonal, space group 14（1）/acd with a = b = 13.77（1）, c = 15.38（1） A, V = 2916.2（2）, Z = 4, Mr = 618.29, Dc = 5.633 g/cm^3,μ = 49.97（2） mm^-1, F（000） = 4192, the final R = 0.0204 and wR = 0.0452 for 757 observed reflections with I 〉 2σ（I）. The structure of CuPb2（OH）2Cl3 contains one-dimensional helical chains built by CuCl4 tetrahedra with comer-sharing along the c-axis, in which the Pb^2＋ and OH^- ions are located at the voids between chains. Optical reflectance spectrum measurements indicate that it is a semiconductor with a band-gap of 3.23 eV.

关键词： oxyhalide crystal structure hydrothermal reaction semiconductor

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Lactic Acid Assisted Solvothermal Synthesis of BiOClxI1-x Solid Solutions as Excellent Visible Light Photocatalysts

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Chemical Research in Chinese Universities 2019年第2期35卷 277-284页

作者： DUAN Chenglin SONG Jinling WANG Baoying LI Lun WANG Ruifen ZHANG Bangwen School of Material and Metallurgy Inner Mongolia University of Science and TechnologyBaotou 014010P.R.China

A series of BiOClxI1-x(x=0,0.1,0.3,0.5,0.7,0.9,1.0)photocatalysts was firstly prepared by means of a facile solvothermal route with the help of lactic *** measured results show that the morphologies of the as-prepared samples are similar sheets with different thickness and *** nanosheets assembled flower-like BiOCI0.5I0.5 solid solution exhibited the highest photocatalytic activity and stability among the prepared samples for the degradation of methylene blue(MB)and methyl orange(MO)under the illumination of visible *** excellent photocatalytic properties of BiOCI0.5I0.5 could be attributed to the high specific surface area,the suita-ble band gap energy and the lower recombination rate of the electrons and *** addition,catalyst BiOCI0.5I0.5 was further used to degradate a more complicated mixed dye(MCH-RhB+MB)system under visible light,displaying an excellent photocatalytic ***,the photocatalytic mechanism of catalyst BiOCI0.5I0.5 to degradate colorful dyes was *** trapping experiments of active species indicated that the holes are the main active species for the degradation of the mixed dyes.

关键词： Solid solution Bismutli oxyhalide Mixed dye Solvothennal Photocatalysis

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