构建光催化氧化-还原体系的研究进展

光催化氧化-还原体系能够同时驱动光催化氧化反应和还原反应，产生协同效应，从而提高光催化反应的活性。在此，提出了构建光催化氧化-还原体系的原则，并介绍了光催化还原硝基芳烃耦合氧化有机物、光催化还原重金属离子协同氧化有机物、光解水制氢协同氧化有机物三个方面的实例。接着，阐述了光催化氧化-还原体系的反应机理，期望通过构建光催化氧化-还原体系，更有利于太阳能转化并缓解环境和能源问题。

Research progress on the construction of photocatalytic oxidation-reduction system

A photocatalytic oxidation-reduction system can actuate both photocatalytic oxidation and reduction reactions to produce the synergy effect, increasing the activity of photocatalytic reactions. Here, the principles of construction of photocatalytic oxidation-reduction systems are proposed, and three examples of the coupled oxidation of organic compounds by photocatalytic reduction of nitro-aromatics, the coupled oxidation of organic compounds by photocatalytic reduction of heavy metal ions, and the coupled oxidation of organic compounds by photolytic hydrogen production are presented. Then, the reaction mechanism of the photocatalytic oxidation-reduction system is illustrated. It is expected that the construction of a photocatalytic oxidation-reduction system will be more beneficial to solar energy conversion and alleviate environmental and energy problems.