Preparation of plasmonic photocatalysts consisting of base metals and creation of innovative catalytic functions

2022 Fiscal Year Final Research Report

• Project/Area Number: 20H02527
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 27030:Catalyst and resource chemical process-related
• Research Institution: Kindai University
• Principal Investigator: KOMINAMI Hiroshi 近畿大学, 理工学部, 教授 (00257966)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: プラズモニック光触媒 / 水分解 / 可視光

Outline of Final Research Achievements

About 10 years have passed since plasmonic photocatalysts were studied as a new type of photocatalyst; however, research on plasmonic photocatalysts using Au has been saturated, and most of them are combined with other photocatalysts, i.e., they are moving to the stage of compounding. On the other hand, we do not follow the trend of such complex systems, and challenged the unexplored area of plasmonic photocatalyst research. Specifically, a) search for a method to improve the oxidation-reduction function of Au plasmonic photocatalysts by forming hydroxide or oxide on Au particles, b) development and evaluation of Au immobilization materials other than TiO2, c) preparation of plasmonic photocatalysts consisting of base metals, were investigated.

Free Research Field

光触媒

Academic Significance and Societal Importance of the Research Achievements

本研究は複雑系の潮流には乗らず、プラズモニック光触媒研究の根幹部分・未踏部分に挑戦した。つまり、さまざまな、簡単な化学的手法を駆使することによりプラズモニック光触媒を創製し、他の複雑系の光触媒でも持ち得ない触媒機能を創出することに成功した。本研究の成果は、その作用機序が単純明快で、かつ、汎用性が高いので、他の光触媒系への転用が容易である。これら一連の研究は、プラズモニック光触媒研究の新機軸となる先導研究と言える。さらに、この結果を利用する継続研究が多く興ると思われる。