Research progress of zinc oxide-based heterojunction photocatalysts

Abstract

At present, the crisis of declining resources and environmental degradation has become a major global challenge. Photocatalysis is a very efficient technology for the production of renewable energy as well as the degradation of pollutants. Among them, zinc oxide-based photocatalysts have become one of the most promising photocatalysts due to their stability and environmental protection, and they have a wide range of applications in pollutant degradation, water cracking photolysis hydrogen production, CO2 reduction, etc. Although a lot of research has been done on the performance of photocatalysts, there is still a large gap in exploring heterojunctions and their effects on photocatalytic efficiency. In this paper, we aim to fill this gap by in-depth analysis of the influence of different heterojunction structures in zinc oxide-based photocatalysts on various applications. Other effective strategies to improve photocatalytic performance are summarized, which provides important insights for promoting the development of photocatalytic efficiency.