 Photocatalytic technology has been gaining increasing attention due to its potential applications in various industries. It is a promising solution to address the energy crisis and environmental pollution caused by the rapid growth of industry and people's demands for resources. However, the industrialization of photocatalytic technology faces many challenges, such as the lack of an efficient photocatalyst with a large specific surface area, full utilization of solar light, and recyclability. To overcome these obstacles, this review provides a comprehensive overview of the current status of photocatalytic technology, including the photocatalytic reaction mechanism, the preparation of photocatalysts, and their potential industrial applications. This article was authored by Fubao Zhang, Xianming Wang, Haonan Lu, and others.