Biogenic Fabrication of Au@CeO2 Nanocomposite with Enhanced Visible Light Activity

This study reports a biogenic approach to the synthesis of Au@CeO2 nanocomposite using electrochemically active biofilms (EABs) in water under normal pressure and 30 °C. This work presents the results of extensive morphological, structural, optical, visible light photoelectrochemical and photocataly...

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Bibliographic Details
Published in:Journal of physical chemistry. C 2014-05, Vol.118 (18), p.9477-9484
Main Authors: Khan, Mohammad Mansoob, Ansari, Sajid Ali, Ansari, Mohd Omaish, Min, B. K, Lee, Jintae, Cho, Moo Hwan
Format: Article
Language:English
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Summary:This study reports a biogenic approach to the synthesis of Au@CeO2 nanocomposite using electrochemically active biofilms (EABs) in water under normal pressure and 30 °C. This work presents the results of extensive morphological, structural, optical, visible light photoelectrochemical and photocatalytic studies of Au@CeO2 nanocomposite. The presence of a large number of interfaces between Au nanoparticles and CeO2 for charge transfer is believed to play a key role in enhancing the optical and visible light photoelectrochemical and photocatalytic performance of Au@CeO2 nanocomposite. The enhanced visible light degradation of methyl orange and methylene blue by Au@CeO2 nanocomposite was much higher than that by pure CeO2. The reusability, stability, and other results suggests that the Au@CeO2 nanocomposite could be exploited as potential candidates for visible light photocatalysis, photovoltaic, and photoelectrochemical devices.
ISSN:1932-7447
1932-7455
DOI:10.1021/jp500933t