Journal
APPLIED SURFACE SCIENCE
Volume 392, Issue -, Pages 616-623Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2016.09.033
Keywords
Nano Au; ZnO semiconductor; Inversed nanostructure; SPR effect; Visible-light photocatalysis
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Funding
- National Natural Science Foundation of China [51572126, 51372118]
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In this paper, we fabricate Au/ZnO nanostructure with smaller ZnO nanoparticles loaded onto bigger gold nanoparticles via combining seed-mediated method and sol-gel method. The obtained Au/ZnO nanocomposites exhibit excellent properties in photocatalysis process like methyl orange (MO) degradation and oxidative conversion of methanol into formaldehyde under visible light irradiation. The enhanced properties were ascribed to the surface plasmon resonance (SPR) effect of Au nanoparticles, which could contribute to the separation of photo-excited electrons and holes and facilitate the process of absorbing visible light. This paper contributes to the emergence of multi-functional nanocomposites with possible applications in visible-light driven photocatalysts and makes the Au/ZnO photocatalyst an exceptional choice for practical applications such as environmental purification of organic pollutants in aqueous solution and the synthesis of fine chemicals and intermediates. (C) 2016 Published by Elsevier B.V.
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