title: Visible light induced CO2 reduction and Rh B decolorization over electrostatic-assembled AgBr/palygorskite.
abstract: 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 (N(CH(2)CH(2)CH(2)CH(3))(4)(+)) 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 CO(2) reduction with H(2) 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.
authors.affiliation: State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China. zhangxiaojie19771224@126.com
authors.forename: Xiaojie
authors.initials: X
authors.lastname: Zhang
authors.forename: Jinli
authors.initials: J
authors.lastname: Li
authors.forename: Xin
authors.initials: X
authors.lastname: Lu
authors.forename: Changqing
authors.initials: C
authors.lastname: Tang
authors.forename: Gongxuan
authors.initials: G
authors.lastname: Lu
mesh_terms: D000327:Adsorption; D001965:Bromides / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry*; D008027:Light; D017616:Magnesium Compounds / Q000737:chemistry*; D010316:Particle Size; D012235:Rhodamines / Q000737:chemistry*; D017655:Silicon Compounds / Q000737:chemistry*; D018030:Silver Compounds / Q000737:chemistry*; D055672:Static Electricity; D013499:Surface Properties
chemical_list: D001965:Bromides; D017616:Magnesium Compounds; D012235:Rhodamines; D017655:Silicon Compounds; D018030:Silver Compounds; D002245:Carbon Dioxide; C029773:rhodamine B; C047751:silver bromide; C026325:attapulgite