Development of visible-light sensitive photocatalyst with high activity using solid base and acid

• Project/Area Number: 15K05591
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Green/Environmental chemistry
• Research Institution: National Institute for Materials Science
• Principal Investigator: Kako Tetsuya 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, 主任研究員 (00399411)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: 光触媒 / 可視光 / 固体塩基 / 環境浄化 / ユビキタス材料

Outline of Final Research Achievements

An effective method for indoor air cleaning is decomposition of harmful organic compounds such as VOCs in houses by using a visible-light sensitive photocatalytic reaction. Most of the photocatalysts have problems in their low activity or stability. In this study to solve this problem surface treatment (solid base and acid loading) was done on visible light sensitive photocatalysts including WO3. As a result, the band structures were tuned better. We found that solid base loaded WO3 showed 100 times higher photocatalytic activity than pure WO3; the activity of the red-clay-(with solid base and acid)-loaded WO3 enhanced by about 500 times compared with that of WO3.

Research Products

• [Journal Article] Efficient photocatalytic CO2 reduction in all-inorganic aqueous environment: Cooperation between reaction medium and Cd(II) modified colloidal Zn (2017)
  • Author(s): XG. Meng, Q. Yu, GG. Liu, L. Shi, GX. Zhao, HM. Liu, P. Li, K. Chang, T. Kako, and JH. Ye
  • Journal Title: Nano Energｙ Volume: 34 Pages: 524-532
  • DOI: 10.1016/j.nanoen.2017.03.021
  • Peer Reviewed
• [Journal Article] Elemental Boron for Efficient Carbon Dioxide Reduction under Light Irradiation (2017)
  • Author(s): GG. Liu, XG. Meng, HB. Zhang, GX. Zhao, H. Pang, T. Wang, P. Li, T. Kako, and JH. Ye
  • Journal Title: Angewandte Chemie International Edition Volume: 56 Issue: 20 Pages: 5570-5574
  • DOI: 10.1002/anie.201701370
  • Peer Reviewed
• [Journal Article] Superior Photocatalytic H-2 Production with Cocatalytic Co/Ni Species Anchored on Sulfide Semiconductor (2017)
  • Author(s): GX. Zhao, YB. Sun, W. Zhou, XK. Wang, K. Chang, GG. Liu, HM. Liu, T. Kako, and JH. Ye
  • Journal Title: Advanced Materials Volume: 29 Issue: 40
  • DOI: 10.1002/adma.201703258
  • Peer Reviewed
• [Journal Article] Promoting Active Species Generation by Plasmon-Induced Hot-Electron Excitation for Efficient Electrocatalytic Oxygen Evolution (2016)
  • Author(s): Guigao Liu, Peng Li, Guixia Zhao, Xin Wang, Jintao Kong, Humin Liu, Huabin Zhang, Kun Chang, Xianguang Meng, Tetsuya Kako, and Jinhua Ye
  • Journal Title: Journal of the American Chemical Society Volume: 138 Issue: 29 Pages: 9128-9136
  • DOI: 10.1021/jacs.6b05190
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] n-type boron phosphide as a highly stable, metal-free, visible-light active photocatalyst for hydrogen evolution (2016)
  • Author(s): Li Shi, Peng Li, Wei Zhou, Tao Wang, Kun Chang, Huabin Zhang, Tetsuya Kako, Guigao Liu, and Jinhua Ye
  • Journal Title: Nano Energy Volume: 28 Pages: 158-163
  • DOI: 10.1016/j.nanoen.2016.08.041
  • Peer Reviewed
• [Journal Article] Solid-base loaded WO3 photocatalyst for decomposition of harmful organics under visible light irradiation (2015)
  • Author(s): Tetsuya Kako, Xianguang Meng, Jinhua Ye
  • Journal Title: APL Materials Volume: ３ Issue: 10 Pages: 104411-104411
  • DOI: 10.1063/1.4927607
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] ユビキタス材料を利用した光触媒による屋内有害物質の分解除去方法 (2017)
  • Author(s): Tetsuya Kako, Xianguang Meng, Fumihiko Ichihara, and Jinhua Ye
  • Organizer: 第6回 JACI/GSCシンポジウム
• [Presentation] 固体塩基による酸化タングステン光触媒反応の高活性化とそのメカニズム (2016)
  • Author(s): 加古 哲也、Guigao Liu, Xainguang Meng, Jinhua Ye
  • Organizer: 第23回シンポジウム 光触媒反応の最近の展開
  • Place of Presentation: 東京
  • Year and Date: 2016-12-02