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

Paper ID Volume ID Publish Year Pages File Format Full-Text
50610 46804 2012 4 PDF Available
Title
Surface Fe3+-decorated pristine SnO2 nanoparticles with enhanced ·OH radical generation performance
Abstract

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

►Fe 3+ is successfully decorated onto the surface of pristine SnO2 nanoparticles. ►The Fe3+-decorated SnO2 exhibits enhanced ·OH radical generation performance. ►A model demonstrates the photocatalysis mechanism of Fe3+-decorated SnO2.

Keywords
SnO2; Fe3+ ions; Interfacial charger transfer; Four electrons reduction; Photocatalysis
First Page Preview
Surface Fe3+-decorated pristine SnO2 nanoparticles with enhanced ·OH radical generation performance
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 24, 5 July 2012, Pages 96–99
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis