Title:
二酸化炭素還元における効率向上方法
Document Type and Number:
Japanese Patent JP5763586
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain higher reduction efficiency in carbon dioxide reduction using a photocatalyst.SOLUTION: In a step S101, carbon dioxide is brought into contact with photocatalyst having a photocatalytic function. In a step S102, first light with a wavelength not less than a band gap of the photocatalyst is irradiated to the photocatalyst (first light irradiation step). By the first light irradiation with the wavelength not less than the band gap of the photocatalyst, electrons and holes are generated in the photocatalyst. In a step S103, second light with a wavelength of 4.3 μm is irradiated to carbon dioxide to generate vibration caused by asymmetrical expansion/contraction motion in carbon dioxide molecules.
Inventors:
Yoko Maruo
Takumi Yamada
Takumi Yamada
Application Number:
JP2012129372A
Publication Date:
August 12, 2015
Filing Date:
June 06, 2012
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
C01B32/50; B01J23/52; B01J35/02; C07C1/12; C07C9/04
Domestic Patent References:
| JP2003299965A | ||||
| JP2009275033A | ||||
| JP56063812A | ||||
| JP2006169095A | ||||
| JP2008183522A | ||||
| JP2013043123A | ||||
| JP2004344720A | ||||
| JP2012115750A |
Foreign References:
| US20100213046 | ||||
| US20110207006 | ||||
| US20110180386 | ||||
| US20070272541 |
Other References:
C.-C. YANG et al.,Artificial Photosynthesis over Crystalline TiO2-Based Catalysts: Fact or Fiction?,J. Am. Chem. Soc.,2010, 132, 8398-8406.,See also Supporting Information.
亀山紘之他,金ナノ微粒子担持酸化チタン光触媒による二酸化炭素の還元固定化,第98回触媒討論会討論会A予稿集,触媒学会,2006年 9月26日,第223頁
亀山紘之他,金ナノ微粒子担持酸化チタン光触媒による二酸化炭素の還元固定化,第98回触媒討論会討論会A予稿集,触媒学会,2006年 9月26日,第223頁
Attorney, Agent or Firm:
Masaki Yamakawa
Shigeki Yamakawa
Yuzo Koike
Shigeki Yamakawa
Yuzo Koike