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The role of electron transfer in photocatalysis: Fact and fictions

Paper ID Volume ID Publish Year Pages File Format Full-Text
46617 46443 2012 14 PDF Available
Title
The role of electron transfer in photocatalysis: Fact and fictions
Abstract

Interfacial electron transfer at semiconductor nanoparticles is a fundamental process that is relevant to many applications in photocatalysis such as wastewater cleaning, air cleaning and energy production. Fundamental understanding of the dynamic of the electron transfer is of crucial importance for the understanding of the fundamental concepts of photocatalytic processes and hence results in understanding and industrialization of photocatalytic reactions as well as a rational design of the photocatalytic systems.This review summarizes the progress in understanding electron transfer dynamics from semiconductor nanoparticles to the electron acceptor molecules. The approaches to improve the electron transfer efficiency will be also reviewed. Of particular focus will be the advancement of methodology as well as overview of some new highlights in electron transfer reactions at TiO2/liquid interface.

Graphical abstract.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Electron transfer plays a key role in photocatalysis. ► Electron transfer dynamics measured by flash photolysis, pulse radiolysis or stopped flow. ► Electron transfer efficiency depends on photocatalyst size, surface composition and morphology. ► The electron transfer rate was found to increase with increasing the driving force. ► New findings on the electron transfer reactions at TiO2 nanoparticles are reviewed.

Keywords
Electron transfer; Photocatalysis; Electron dynamic techniques; Kinetic aspects; Mechanistic perspectives
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 128, 30 November 2012, Pages 91–104
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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