Titania-supported bimetallic catalysts for photocatalytic reduction of nitrate

被引：114

作者：

Gao, WL

Jin, RC

Chen, MX

Guan, XX

Zeng, HS

Zhang, FX

Guan, NJ

机构：

[1] Nankai Univ, Coll Chem, Inst New Catalyt Mat Sci, Cooperat Inst, Tianjin 300071, Peoples R China

[2] Tianjin Univ, Tianjin 300071, Peoples R China

来源：

CATALYSIS TODAY | 2004年 / 90卷 / 3-4期

关键词：

Ni-Cu/TiO2 bimetallic catalyst; drinking water; photocatalytic reduction; mechanism;

D O I：

10.1016/j.cattod.2004.04.043

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Photocatalytic reduction of nitrate in the presence of hole scavenger has been studied by using TiO2-supported bimetallic catalysts for the first time. Compared with monometallic catalysts, bimetallic catalysts, especially Ni-Cu/TiO2 catalyst, show more excellent photocatalytic reduction activity. Furthermore, the effects of metal weight ratio, total metal content, different hole scavengers and pH value of the solution are also investigated. It is found that pH value of reaction solution plays an important role in the photocatalytic reduction of nitrate ions. A mechanism is proposed to discuss enhancement effect of the bimetallic catalyst in photocatalytic reduction of nitrate ions in this paper. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：331 / 336

页数：6

共 19 条

[1] XPS and TPR examinations of γ-alumina-supported Pd-Cu catalysts [J].