Development of Hetero-Sided Photocatalyst Plate Reactors/ Hydrogen Production by Reducing Water with Solar Light Using Sulfur as Electron Source

• Project/Area Number: 16560668
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Reaction engineering/Process system
• Research Institution: Shinshu University
• Principal Investigator: SUZUKI Eiji Shinshu University, Faculty of Textile, Professor (50226495)
• Co-Investigator(Kenkyū-buntansha): USAMI Hisanao Shinshu University, Faculty of Textile, Associate Professor (60242674)
• Project Period (FY): 2004 – 2007
• Project Status: Completed (Fiscal Year 2007)
• Budget Amount: ¥3,550,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥150,000); Fiscal Year 2007: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2006: ¥600,000 (Direct Cost: ¥600,000); Fiscal Year 2005: ¥1,700,000 (Direct Cost: ¥1,700,000); Fiscal Year 2004: ¥600,000 (Direct Cost: ¥600,000)
• Keywords: photocatalysts / hydrogen / Solar energy / 反応速度 / 量子収率 / 太陽光 / 水素生産

Research Abstract

Objectives:
1. Development of Photocatalytic Reaction Engineering
2. Development of Hetero-Sided Photocatalyst Plate Reactors
Results:
1. Development of Photocatalytic Reaction Engineering
Reaction rate of photocatalytic hydrogen production by Reducing Water with Solar Light Using Sulfur as Electron Source was formulated as eq.(1)
r = k*exp(-38/(RT))? CA, (1)
where r, k*, C, R, T, and A are the hydrogen generation rate [mol-H_2 h^1], a rate constant [mh^1] the reactant Na_2S concentration [M], the gas constant (0.008314 kJK^-1 mol^1), the reaction temperature [K], and the area [m^2] of the reactor bottom covered with photocatalysts, respectively.
2. Development of Hetero-Sided Photocatalyst Plate Reactors
A membrane type reactor realizing quantum efficiency several-fold higher than conventional ones was developed. The reactor can minimize recombination of electrons with positive holes, and reduce reverse reactions at catalyst surface.

Research Products

• [Journal Article] 電子と正孔を反応物分子とみなす光触媒反応工学 (2006)
  • Author(s): 鈴木栄二
  • Journal Title: ケミカルエンジニアリング 51 Pages: 495-500
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] 電子と正孔を反応物分子とみなす光触媒反応工学 (2006)
  • Author(s): 鈴木 栄二
  • Journal Title: ケミカルエンジニアリング 51巻7号 Pages: 495-500
• [Journal Article] Kinetics study on photocatalytic hydrogen generation from hydrogen sulfide (2005)
  • Author(s): Suzuki, E., Hayashi, Y., Shimomura, Y., Yoshida, S., Usami, H., Nakasa, A., Fujimatsu, H.
  • Journal Title: Journal of Chemical Engineering of Japan 38 Pages: 824-827
  • NAID: 130005052765
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Proposal of a Novel Photocatalysis System, Hetero-Sided Photocatalyst Plate Reactor (2005)
  • Author(s): Eiji Suzuki, Shusuke Yoshida, Hisanao Usami, Akihiko Nakasa and Hitoshi Fujimatsu
  • Journal Title: Journal of Chemical Engineering of Japan 38 Pages: 818-823
  • NAID: 130000019440
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Kinetics study on photocatalytic hydrogen generation from hydrogen sulfide (2005)
  • Author(s): Suzuki, E., Hayashi, Y., Shimomura, Y., Yoshida, S., Usami, H., Nakasa, A., Fujimatsu, H
  • Journal Title: Journal of Chemical Engineering, Japan 38 Pages: 824-827
  • NAID: 130005052765
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Fabrication of light-leakage type photocatalytic fiber bundle for photodegradation of basic dye (2005)
  • Author(s): Usami, H., Enami, Y., Nakasa, k., Suzuki, E., Murakami, Y
  • Journal Title: Journal of Chemical Engineering, Japan 38 Pages: 737-741
  • NAID: 130000019322
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Kinetics study on photocatalytic hydrogen generation from hydrogen sulfide (2005)
  • Author(s): Suzuki, E., Hayashi, Y., Shimomura, Y., Yoshida, S., Usami, H., Nakasa, A., Fujimatsu, H.
  • Journal Title: JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 38(10) Pages: 824-827
  • NAID: 130005052765
• [Journal Article] Proposal of a Novel Photocatalysis System, Hetero-Sided Photocatalyst Plate Reactor (2005)
  • Author(s): Eiji Suzuki, Shusuke Yoshida, Hisanao Usami, Akihiko Nakasa, Hitoshi Fujimatsu
  • Journal Title: JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 38(10) Pages: 818-823
  • NAID: 130000019440
• [Journal Article] Kinetics Study on Photocatalytic Hydrogen Generation from Hydrogen Sulfide (2005)
  • Author(s): Eiji Suzuki et al.
  • Journal Title: J.Chem.Eng.Japan (in press)
  • NAID: 130005052765
• [Presentation] 光触媒反応工学:半導体理論・光工学・触媒化学・反応工学の融合」化学工学会第73年会 (2008)
  • Author(s): 鈴木栄二
  • Organizer: 化学工学会第73年会
  • Place of Presentation: 静岡大学
  • Year and Date: 2008-03-18
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Reaction Engineering of Photocatalytic Reactions (2008)
  • Author(s): Eiji, Suzuki
  • Organizer: The 73th Meeting, Society of Chemical Engineers, Japan
  • Place of Presentation: Shizuoka University
  • Year and Date: 2008-03-18
  • Description: 「研究成果報告書概要(欧文)」より