Studies on the photocatalytic performance of cuprous oxide/chitosan nanocomposites activated by visible light

被引：60

作者：

Chen, Jin-Yi ^{[1
,2
]}

Zhou, Pei-Jiang ^{[1
]}

Li, Jia-Lin ^{[2
]}

Wang, Yan ^{[2
]}

机构：

[1] Wuhan Univ, Coll Resources & Environm Sci, Wuhan 430079, Peoples R China

[2] Cent China Normal Univ, Nanotechnol Res Inst, Wuhan 430079, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2008年 / 72卷 / 01期

基金：

中国国家自然科学基金;

关键词：

electrochemical deposition; nanocomposites; photocatalysts; cuprous oxide-chitosan; visible light;

D O I：

10.1016/j.carbpol.2007.07.036

中图分类号：

O69 [应用化学];

学科分类号：

081704 [应用化学];

摘要：

Taking the chitosan nanoparticles prepared by adding only sodium sulfate into acetic acid solution of chitosan as carriers, cuprous oxide/chitosan nanocomposites were prepared by electrochemical deposition. It's found that the needle shaped cuprous oxide nanocrystallines are combined with chitosan particles by chelation. Activated by a visible light, Cu2O/chitosan nanocomposites are used as a photocatalyst in the degradation of brilliant red X-3B of which the initial concentration is set as 50 mg/L. The results show that the best efficiency was obtained when the mass ratio Of CU2O in Cu2O/chitosan nanocomposites was 50%. And after the photocatalytic reaction, the residual copper element concentration can be cut down from 1.545 mg L-1 to 0.337 mg L-1 which is up to the drinking water standard of WHO. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：128 / 132

页数：5

共 26 条

[1]

The relationship between the local structure of copper(I) ions on Cu+/zeolite catalysts and their photocatalytic reactivities for the decomposition of NOx into N2 and O2 at 275 K [J].