Visible light induced CO₂ reduction and Rh B decolorization over electrostatic-assembled AgBr/palygorskite

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• 作者：Xiaojie Zhang^a ; ^b ; ^{zhangxiaojie19771224@126.com} ; Jinli Li^a ; ^c ; ^{lijinli18@163.com} ; Xin Lu^b ; ^{418287396@qq.com} ; Changqing Tang^b ; ^{jytcq@126.com} ; Gongxuan Lu^a ; ^{gxlu@lzb.ac.cn}
• 关键词：AgBr/palygorskite ; Visible light ; CO2 reduction ; Rh B decolorization
• 刊名：Journal of Colloid and Interface Science
• 出版年：2012
• 期刊代码：125_00219797
• 类别：ch
• 出版时间：1 July, 2012
• 卷：377
• 期：1
• 页码：277-283
• 文件大小：924 K

摘要

AgBr/palygorskite composite was prepared by an in situ electrostatic adsorption-deposition-precipitation method and characterized by field emission scanning electron microscope (FE-SEM), X-ray diffraction (XRD), UV-Vis diffuse reflection, and BET surface measurements techniques. The layer negative charge and larger specific surface area of palygorskite, along with the poor cation-exchange ability of tetra-n-butyl ammonium cation () due to its larger ion radius, could mainly account for high dispersity of AgBr on the surface of fibrous palygorskite. The rate of Rh B decolorization and CO₂ reduction with H₂ as a proton donor and reductant over AgBr/palygorskite was about three and two times faster than that of the corresponding bare AgBr, respectively. The strategy reported in this work can be easily extended to synthesize other palygorskite-based heterostructure catalysts.