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

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• 作者：Shusheng Pan ; ^{sspan@issp.ac.cn} ; Shuan Wang ; Yunxia Zhang ; Sichao Xu ; Fengyu Kong ; Yuanyuan Luo ; Yahui Tian ; Xuemei Teng ; Guanghai Li ; ^{ghli@issp.ac.cn}
• 关键词：SnO2 ; Fe3+ ions ; Interfacial charger transfer ; Four electrons reduction ; Photocatalysis
• 刊名：Catalysis Communications
• 出版年：2012
• 期刊代码：12_15667367
• 类别：ce
• 出版时间：5 July, 2012
• 卷：24
• 期：Complete
• 页码：96-99
• 文件大小：512 K

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 路OH radical generation performance. The Fe³⁺-decorated SnO₂ presents futuramic photocatalysis application in decomposing recalcitrant organic matter.