Development of Hybrid Catalyst Composed of Metal Complex and Semiconductor Photocatalyst for CO<sub>2</sub> Reduction

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  • SHICHIJO Keita
    Graduate School of Engineering, Kyushu University (Currently) Institute of Scientific and Industrial Research, Osaka University
  • SHIMAKOSHI Hisashi
    Graduate School of Engineering, Kyushu University

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Other Title
  • 生体関連錯体を複合化した粉体光触媒によるCO<sub>2</sub>還元反応

Description

<p>A hybrid catalyst composed of naturally occurring metal complexes and semiconductor photocatalysts enables a variety of molecular transformations in a green and sustainable manner. In this study, we have developed the visible light-driven hybrid catalyst (B12–Mn+/TiO2) composed of “vitamin B12” and “metal ion-grafted TiO2 (Mn+/TiO2)”. The B12–Mn+/TiO2 was prepared by mixing of B12 derivatives and Mn+/TiO2, and this hybrid catalyst was thoroughly characterized by various measurements. The B12–Mn+/TiO2 effectively produced reactive Co(I) species under visible light irradiation. In addition, the reactivity of Co(I) species toward CO2 reduction was investigated in this study.</p>

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