Development of non-artificial photosynthetic carbon dioxide recycling process by new photocatalytic reaction cycle

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K17964
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic industrial materials
• Research Institution: Hokkaido University
• Principal Investigator: Takashima Mai 北海道大学, 触媒科学研究所, 助教 (10772345)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 二酸化炭素 / 光触媒 / 一酸化炭素 / 銀化合物 / 多電子移動反応

Outline of Final Research Achievements

In this study, confirmation of the production of carbon monoxide, which is responsible for realization of the proposed cycle, is an important step. Titania-based photocatalysts were prepared under various conditions and the state of the loaded metals was confirmed by XRD, XPS and so on. Photocatalytic activity was performed under various conditions, then, it is found that those photocatalysts discolored immediately after light irradiation. Although it could be confirmed that some kinds of reaction occurred, some problems were raised: the irradiation light source, reaction reactor, and the solid photocatalyst itself did not uniformly react due to anisotropic light irradiation. As a result, the target carbon monoxide production couldn’t be confirmed. and it was impossible to confirm clearly the state of the sample after the reaction.

Free Research Field

機能物質化学，触媒・資源化学プロセス，光化学，光触媒