Development of highly active photocatalytic particles with photocarrier control by nanolevel surface structure

2013 Fiscal Year Final Research Report

• Project/Area Number: 24750204
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic industrial materials
• Research Institution: Kyushu Institute of Technology
• Principal Investigator: MURAKAMI Naoya 九州工業大学, 工学(系)研究科(研究院), 准教授 (10452822)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Keywords: 光触媒 / ナノ材料 / 表面・界面物性

Research Abstract

Photoacoustic spectroscopic (PAS) analysis was carried out in order to reveal the reason why titanium(IV) oxide photocatalysts with specific exposed crystal faces show excellent photocatalytic performance. The results of PAS analysis indicated that the reason can be explained not by amount of defective sits, but by formation of electron accumulated state which does not act as recombination center.

Research Products

• [Journal Article] Dependence of Activity of Rutile Titanium(IV) Oxide Powder for Photocatalytic Overall Water Splitting on Structural Properties (2014)
  • Author(s): Kazuhiko Maeda, Naoya Murakami, Teruhisa Ohno
  • Journal Title: Journal of Physical Chemistry C Volume: Vol. 118 Pages: 9093–9100
  • DOI: 10.1021/jp502949q
  • Peer Reviewed
• [Journal Article] 光音響分光法による半導体光触媒の評価 (2013)
  • Author(s): 村上直也
  • Journal Title: 触媒 Volume: Vol. 55, No.3 Pages: 172-177
• [Journal Article] Photocatalytic Reduction of Carbon Dioxide over Shape-Controlled Titanium(IV) Oxide Nanoparticles with Co-catalyst Loading (2013)
  • Author(s): Naoya Murakami, Daisuke Saruwatari, Toshiki Tsubota, Teruhisa Ohno
  • Journal Title: Current Organic Chemistry Volume: Vol. 17 Pages: 2449–2453
  • DOI: 10.2174/13852728113179990058
  • Peer Reviewed
• [Journal Article] Bifunctionality of Rh^<3+> Modifier on TiO_2 and Working Mechanism of Rh^<3+>/TiO_2 Photocatalyst under Irradiation of Visible Light (2013)
  • Author(s): Sho Kitano, Naoya Murakami, Teruhisa Ohno, Yasufumi Mitani, Yoshio Nosaka, Hiroyuki Asakura, Kentaro Teramura, Tsunehiro Tanaka, Hiroaki Tada, Keiji Hashimoto, Hiroshi Kominami
  • Journal Title: Journal of Physical Chemistry C Volume: Vol. 117 Pages: 11008–11016
  • DOI: 10.1021/jp311801e
  • Peer Reviewed
• [Presentation] グラファイト型窒化炭素と可視光応答型金属酸化物の複合による光触媒反応 (2012)
  • Author(s): 村上直也,近藤健太郎,横野照尚
  • Organizer: 第110回触媒討論会
  • Place of Presentation: 九州大学(福岡市)
  • Year and Date: 2012-09-24