The preparation of high photocatalytic activity nano-spindly Ag-BiVO4 and photoinduced carriers transfer properties

被引：17

作者：

Fan, Haimei ^{[1
,2
]}

Wang, Dejun ^{[2
]}

Xie, Tengfeng ^{[2
]}

Lin, Yanhong ^{[2
]}

机构：

[1] Ningde Normal Univ, Fujian Prov Univ, Dept Chem, Key Lab Green Energy & Environm Catalysis, Ningde 352100, Peoples R China

[2] Jilin Univ, Coll Chem, State Key Lab Theoret & Computat Chem, Changchun 130012, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2015年 / 640卷

基金：

中国国家自然科学基金;

关键词：

EFFICIENT DEGRADATION; DOPED TIO2; LIGHT; PHOTOACTIVITY; COMPOSITE;

D O I：

10.1016/j.cplett.2015.10.033

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of nano-spindly BiVO4 and Ag-BiVO4 were synthesized by a simple solvothermal method. X-ray photoelectron spectroscopy (XPS) and high resolution electron microscopy (HRTEM) analysis indicated that the chemical state of the Ag particles was metallic Ag. Their photocatalytic activities were evaluated by the decolorization of rhodamine B (RhB) under visible light irradiation (lambda > 420 nm). The research of photoinduced charge properties of samples studied by surface photovoltage spectroscopy (SPS) and electric field-induced surface photovoltage spectroscopy (FISPS) measurement system and the results indicated that the existence of Ag attained the enhancement of photoinduced charge carriers' separation. This was thought to be responsible for the higher efficient photocatalytic activity of Ag-BiVO4 in the degradation of RhB. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：188 / 193

页数：6

共 36 条

[1] Preparation, characterization, and photoactivity of polycrystalline nanostructured TiO2 catalysts [J].