論文

2017年9月

Effects of preparation condition on the photocatalytic activity of porphyrin-modified GaN:ZnO for water splitting

SURFACE & COATINGS TECHNOLOGY
  • Hidehisa Hagiwara
  • ,
  • Ryota Kakigi
  • ,
  • Shuhei Takechi
  • ,
  • Motonori Watanabe
  • ,
  • Satoshi Hinokuma
  • ,
  • Shintaro Ida
  • ,
  • Tatsumi Ishihara

324
開始ページ
601
終了ページ
606
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.surfcoat.2016.10.054
出版者・発行元
ELSEVIER SCIENCE SA

Effects of nitridation condition on gallium-zinc oxynitride solid solution (GaN:ZnO) was investigated to optimize the composition of GaN:ZnO for dye-modified photocatalysts. Gallium nitride (GaN) formed from Ga2O3 at 973 K, and GaN:ZnO was obtained over 1073 K under NH3 gas flow. Nitrogen content in GaN:ZnO increased with increasing nitridation temperature and time, while zinc content decreased because of evaporation. Although UV vis absorption spectra of GaN:ZnO powders were not significantly changed in different compositions, the water splitting activities of the dye-modified GaN:ZnO photocatalysts depended on the composition of GaN:ZnO. The highest formation rates of H-2 and O-2 were achieved by the GaN:ZnO containing 15% of zinc and 73% of nitrogen. Finally, the nitridation condition was optimized at 1123 K 15 h under NH3 gas flow (200 ml/min) for preparation of the dye-modified GaN:ZnO powder as water splitting photocatalyst. (C) 2016 Elsevier B.V. All rights reserved.

Web of Science ® 被引用回数 : 6

リンク情報
DOI
https://doi.org/10.1016/j.surfcoat.2016.10.054
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000406988200070&DestApp=WOS_CPL
URL
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85005950206&origin=inward

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