Challenge to Environmental Chemistry based on Bioinorganic Chemistry

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K22204
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 34:Inorganic/coordination chemistry, analytical chemistry, and related fields
• Research Institution: Kyushu University
• Principal Investigator: Hisaeda Yoshio 九州大学, 工学研究院, 教授 (70150498)
• Project Period (FY): 2019-06-28 – 2021-03-31
• Keywords: ビタミンB12誘導体 / 酸化チタン / 有機ハロゲン化物 / 可視光応答 / 光反応 / ハイブリッド触媒 / 生体関連金属錯体 / 環境浄化触媒

Outline of Final Research Achievements

Based on bioinorganic chemistry, we proposed a new method that can safely decompose environmental pollutants, and conducted this research with the aim of opening up new fields in environmental chemistry. The purpose of this research is to take on the challenge of developing environmental chemistry that is useful for human life, without being bound by modeling enzymic reactions.
Specifically, "Proposal of safe decomposition of environmental pollutants such as organic halides and conversion methods into useful substances" was carried out in this project. We have succeeded in developing a hybrid catalyst system that is activated by visible light by combining titanium oxide and a vitamin B12 derivative. We tried to convert environmental pollutants into useful substances, not just decomposition.

Free Research Field

生物無機化学

Academic Significance and Societal Importance of the Research Achievements

本研究は環境適合型の触媒を開発し、有機ハロゲン化物のような環境汚染物質を安全に分解する、または有用物質に変換するための基礎研究である。天然のビタミンB12を化学修飾したものを触媒とし、光増感作用のある酸化チタンと組み合わせて、新しいバイオインスパイアード触媒の開発に成功した。これらの触媒は、温和な条件で環境汚染物質（有機ハロゲン化物）を有用物質に変化する触媒として活用が期待でき、社会的意義も大きいと言える。