Surface Fe3+-decorated pristine SnO2 nanoparticles with enhanced •OH radical generation performance

被引：21

作者：

Pan, Shusheng ^{[1
]}

Wang, Shuan ^{[1
]}

Zhang, Yunxia ^{[1
]}

Xu, Sichao ^{[1
]}

Kong, Fengyu ^{[1
]}

Luo, Yuanyuan ^{[1
]}

Tian, Yahui ^{[1
]}

Teng, Xuemei ^{[1
]}

Li, Guanghai ^{[1
]}

机构：

[1] Chinese Acad Sci, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanostruct, Inst Solid State Phys, Hefei 230031, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2012年 / 24卷

基金：

中国国家自然科学基金;

关键词：

SnO2; Fe3+ ions; Interfacial charger transfer; Four electrons reduction; Photocatalysis; VISIBLE-LIGHT; THIN-FILMS; PHOTOCATALYSIS; TIO2; OXIDE; WO3;

D O I：

10.1016/j.catcom.2012.03.034

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：

This study reports an enhanced activity photocatalyst of Fe3+ ion-decorated SnO2 nanoparticles synthesized by a facile route. The chemical state of Fe3+-decorated SnO2 nanoparticles has been characterized by x-ray photoelectron spectrum (XPS). The Fe3+ is reduced to Fe2+ by the photoelectrons from SnO2 via an interfacial charger transfer process. The Fe2+ are transformed to Fe3+ ion through a four electron reduction, which realizing the recycle of Fe3+ ions, and preventing recombining of photoelectrons with photoholes, resulting in its enhanced center dot OH radical generation performance. The Fe3+-decorated SnO2 presents futuramic photocatalysis application in decomposing recalcitrant organic matter. Crown Copyright (C) 2012 Published by Elsevier By. All rights reserved.

引用

页码：96 / 99

页数：4

共 23 条

[1] Visible-light photocatalysis in nitrogen-doped titanium oxides [J].