Determination of Photoreaction Quantum Yield and Direct Observation of Intermediate in Photocatalytic Reaction

Introduction

Global warming and energy problems are critical issues for realizing a sustainable society. Artificial photosynthesis has attracted attention as a method with the potential to solve, at a single stroke, these serious problems that may threaten the survival of humankind. High efficiency photoenergy conversion reactions are required in research on artificial photosynthesis, and the photoreaction quantum yield*1 is a performance indicator that makes it possible to judge the level of reaction efficiency quantitatively. The number of photons absorbed by a sample, which is necessary for calculation of the photoreaction quantum yield, can be obtained by a simple procedure by using the Lightway™ photoreaction quantum yield evaluation system developed recently by Shimadzu. This article introduces an example of measurement of the photoreaction quantum yield of carbon dioxide (CO2) reduction and direct observation of the intermediate by a RuRe supramolecular complex photocatalyst using the Shimadzu Lightway*2 photoreaction quantum yield evaluation system.

August 19, 2020 GMT