ZnO-based visible-light photocatalyst Band-gap engineering and multi-electron reduction by co-catalyst
ZnO-based visible-light photocatalyst Band-gap engineering and multi-electron reduction by co-catalyst
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DOI：
10.1016/j.apcatb.2010.08.029
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发表时间：
2010-10-20
影响因子：
22.1
通讯作者：
Miyauchi, Masahiro
中科院分区：
文献类型：
--
作者：
Anandan, Srinivasan;Ohashi, Naoki;Miyauchi, Masahiro
采用固溶体形成能带工程和助催化剂表面改性的混合方法，开发了高效ZnO基可见光光催化剂Cu(II)修饰的CdxZn1-xO。CdxZn1-xO固溶体表现出分解气态乙醛的可见光活性，而裸露的ZnO在可见光下表现出可忽略不计的活性。通过 Cu2+ 离子的表面修饰，CdxZn1-xO 光催化剂得到了极大的改善 CdxZn1-xO 中的光生电子在可见光照射下被注入到修饰的 Cu2+ 离子中，Cu2+/Cu 氧化还原电对中的电子导致吸收的氧分子的有效还原。本研究中的策略是将 ZnO 基光催化剂应用于室内应用的一种有前景的方法 (C) 2010 Elsevier B V 版权所有保留
Efficient ZnO based visible-light photocatalysts Cu(II) modified CdxZn1-xO were developed by adopting a hybrid approach consisting of band-engineering by formation of a solid solution and sui face modification of co-catalysts The CdxZn1-xO solid solution exhibited the visible-light activity for decomposing gaseous acetaldehyde while bare ZnO showed negligible activity under visible-light Further the visible-light activity of CdxZn1-xO photocatalysts was greatly improved by the surface modification of Cu2+ ions Photogenerated electrons in CdxZn1-xO are injected into the modified Cu2+ ions under visible-light irradiation and electrons in Cu2+/Cu redox couples cause the efficient reduction of absorbed oxygen molecules The strategy in the present study is a promising approach for applying ZnO-based photocatalysts for indoor applications (C) 2010 Elsevier B V All rights reserved