Preparation and characterization of ZnO/TiO2, SO42-/ZnO/TiO2 photocatalyst and their photocatalysis

被引：178

作者：

Liao, SJ ^{[1
]}

Huang, DG ^{[1
]}

Yu, DH ^{[1
]}

Su, YL ^{[1
]}

Yuan, GQ ^{[1
]}

机构：

[1] S China Univ Technol, Coll Sci, Dept Appl Chem, Guangzhou 510641, Peoples R China

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2004年 / 168卷 / 1-2期

关键词：

ZnO/TiO2; photocatalyst; sol-gel method; sulfating; photocatalysis;

D O I：

10.1016/j.jphotochem.2004.05.010

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 novel binary oxide photocatalyst ZnO/TiO2 was prepared by a new modified sol-gel method using citric acid as a complex reagent and its photocatalytic activity was investigated. The factors, such as the ratio of amount of doped zinc ion, the precursors, and the calcination temperature on the activities of ZnO/TiO2 photocatalyst, were investigated. SO42-/ZnO/TiO2 was prepared by sulfating the dry gets of ZnO/TiO2 with H2SO4 solution. It was showed that the addition of ZnO could enhance the activity significantly, and sulfating ZnO/TiO2 with sulfuric acid resulted to dramatic enhancement, the degradation ratio of methyl orange could be up to 71.9%, compared with 55% of degradation of ZnO/TiO2 catalyst. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：7 / 13

页数：7