3D-Array of Au–TiO<sub>2</sub> Yolk–Shell as Plasmonic Photocatalyst Boosting Multi-Scattering with Enhanced Hydrogen Evolution

DOI Web Site 被引用文献5件 参考文献35件
  • Xiaowei Shi
    The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki Osaka 567-0047, Japan
  • Zaizhu Lou
    The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki Osaka 567-0047, Japan
  • Peng Zhang
    The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki Osaka 567-0047, Japan
  • Mamoru Fujitsuka
    The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki Osaka 567-0047, Japan
  • Tetsuro Majima
    The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki Osaka 567-0047, Japan

書誌事項

公開日
2016-11-11
資源種別
journal article
DOI
  • 10.1021/acsami.6b12940
公開者
American Chemical Society (ACS)

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説明

Nowadays, how to convert solar energy efficiently to other energies, such as chemical energy, is an important subject. In the present work, gold nanosphere (AuNS) monoencapsulated in TiO2 hollow nanosphere (Au–TiO2) and three-dimensional assembled array of Au–TiO2 (3D-array) were fabricated to carefully explore the multiscattering effect on the photocatalytic activity of H2 generation under simulated solar light and visible light irradiation, respectively. Au–TiO2 with the inner cavity diameter of 176 nm was uniformly synthesized via SiO2 protection method and then was used as building blocks for construction of 3D-array. The 3D-array exhibited a much higher photocatalytic activity of H2 generation (3.5 folds under visible light irradiation, 1.4 folds under solar light irradiation) than Au–TiO2. Single-particle plasmonic photoluminescence measurement and computational simulation of finite difference time domain (FDTD) were performed to elucidate the detailed mechanisms of photocatalysis. It was suggested ...

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