Title:
WATER SPLITTING APPARATUS USING PHOTOCATALYST, AND WATER SPLITTING SYSTEM PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2023/182282
Kind Code:
A1
Abstract:
[Problem] To realize Z scheme-type water splitting by means of a photocatalyst with a simple configuration. [Solution] This water splitting apparatus 3 comprises a photocatalyst panel 7 and a reaction container 9 for performing a water splitting reaction, wherein: the photocatalyst panel 7 includes a light transmitting substrate 11, a first photocatalyst layer 13 formed to overlap a first surface 11A of the substrate 11, and a second photocatalyst layer 13 formed to overlap a second surface 11B of the substrate 11; one among the first photocatalyst layer 13 and the second photocatalyst layer 13 is a photocatalyst layer which is for oxygen generation and includes a first semiconductor, and the other is a photocatalyst layer which is for hydrogen generation and includes a second semiconductor; and the reaction container 9 has an internal space divided by the photocatalyst panel 7, an oxygen generation tank 21 formed on the side of the photocatalyst layer for oxygen generation, a hydrogen generation tank 22 formed on the side of the photocatalyst layer for hydrogen generation, and a light incidence wall 9A through which light incident toward the first photocatalyst layer 13 of the photocatalyst panel 7 is transmitted.
Inventors:
ABE RYU (JP)
SUZUKI HAJIME (JP)
MATSUOKA HIKARU (JP)
SHIROUCHI TOMOHA (JP)
YAGI FUYUKI (JP)
URASAKI KOHEI (JP)
YAGI HIROSHI (JP)
SUZUKI HAJIME (JP)
MATSUOKA HIKARU (JP)
SHIROUCHI TOMOHA (JP)
YAGI FUYUKI (JP)
URASAKI KOHEI (JP)
YAGI HIROSHI (JP)
Application Number:
PCT/JP2023/010934
Publication Date:
September 28, 2023
Filing Date:
March 20, 2023
Export Citation:
Assignee:
CHIYODA CORP (JP)
UNIV KYOTO (JP)
UNIV KYOTO (JP)
International Classes:
C01B3/04; B01J23/22; B01J23/58; B01J23/888; B01J27/26; B01J35/02; C01B13/02
Domestic Patent References:
| WO2017221866A1 | 2017-12-28 | |||
| WO2016017225A1 | 2016-02-04 |
Foreign References:
| JP2020012134A | 2020-01-23 | |||
| JP2012188683A | 2012-10-04 | |||
| JP2005199187A | 2005-07-28 | |||
| JP2011094194A | 2011-05-12 |
Attorney, Agent or Firm:
OSHIMA & PARTNERS (JP)
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