Visible-light photocatalysis of ZnO deposited on nanoporous Au |
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| Authors: | Masataka Hakamada Motohiro Yuasa Takashi Yoshida Fumi Hirashima Mamoru Mabuchi |
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| Institution: | 1. Graduate School of Energy Science, Kyoto University, Yoshidahonmachi, Sakyo, Kyoto, 606-8501, Japan
2. Materials Research Institute for Sustainable Development, National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Anagahora, Shimoshidami, Moriyama, Nagoya, 463-8560, Japan
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| Abstract: | ZnO deposited on nanoporous Au showed photocatalytic decomposition toward methyl orange under visible light, unlike ZnO sputtered on flat Au without a nanoporous structure. First-principles calculations suggested that the surface lattice disorder in nanoporous Au induced a band gap narrowing and a large built-in electric field in the adjacent ZnO, resulting in the visible-light photocatalytic response. |
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