Recent advances in photocatalysis on cement-based materials

Cement is a crucial material for modern infrastructure and is mainly used as a structural material worldwide. Recently, the development of cementitious materials with accessional functionality for further expanding the applications has been rapidly growing. Cement with photocatalytic functions has dual functionality of construction and the photodegradation of pollutants. This topic has drawn rapidly-growing interest around the world, and progress has been achieved in the preparation and applications. However, a comprehensive overview of the recent advances is still absent. Herein, we summarize the recent advances in cement-based photocatalytic materials, mainly focusing on their preparation and performance. Examples of practical applications are also given, and the challenges and strategies for multifunctional cements with photocatalytic properties are provided at the end. This review may benefit the design of novel cement-based materials with multifunctions for further applications.