Photodegradation of acetone over V-Gd-O composite catalysts under visible light

被引：23

作者：

He, Yiming ^{[1
]}

Wu, Ying ^{[3
]}

Sheng, Tianlu ^{[2
]}

Wu, Xintao ^{[2
]}

机构：

[1] Zhejiang Normal Univ, Coll Math Phys & Informat Engn, Jinhua 321004, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China

[3] Zhejiang Normal Univ, Zhejiang Key Lab React Chem Solid Surfaces, Inst Phys Chem, Jinhua 321004, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2010年 / 180卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

Photodegradation; Photocatalyst; V2O5; GdVO4; Acetone; TITANIUM-DIOXIDE; PHOTOCATALYTIC DEGRADATION; TIO2; RECOMBINATION; FABRICATION; ELECTRON; PHENOL; BIVO4;

D O I：

10.1016/j.jhazmat.2010.04.091

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A series of visible light active catalysts. V-Gd-O composites, were prepared by the impregnation method. In the photodegradation of acetone, the highest acetone conversion was obtained on V1Gd1Ox catalyst under visible light. The physical and photophysical properties of the composite catalyst have been characterized by XRD, FT-IR, Raman, BET surface area, UV-vis diffuse reflectance spectra, and photoluminescence (PL) spectra. The characterization indicates the V-Gd-O photocatalyst exhibits three phases: Gd2O3. GdVO4 and V2O5. On the basis of the calculated energy band positions and PL spectra, the high activity of the V-Gd-O catalysts could be attributed to the coupling effect between GdVO4 and V2O5 in retarding the recombination of electron-hole pairs. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：675 / 682

页数：8

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