Photocorrosion of plasmonic enhanced CuxO photocatalyst

Chih Ming Wang, Chun Yu Wang

研究成果: 雜誌貢獻期刊論文同行評審

16 引文 斯高帕斯(Scopus)

摘要

The photocatalytic water splitting using CuxO film on metallic structures under visible light illumination is investigated. A plasmonic enhanced layer is applied for high efficient light harvest and to form a heterojunction to prolong the lifetime of the photogenerated electronhole pairs. Although CuxO is a potential photocatalyst with high efficiency, it suffers from serious photocorrosion. The photocorrosion mechanism of p-type CuxO has been investigated using x-ray photoelectron spectroscopy. Through analyzing the composition of CuxO during a photocatalytic water splitting reaction, it is found that the photocorrosion of Cu2O on Pt is caused by the reduction of Cu2O to Cu, while the photocorrosion of Cu2O on Au is caused by the oxidation of Cu 2O to CuO.

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文章編號084095
期刊Journal of Nanophotonics
8
發行號1
DOIs
出版狀態已出版 - 1月 2014

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