In recent years, Bi-based semiconductor materials have gained considerable attention. Their unique layered structure and suitable band gap endow them with superior visible light photocatalytic activities, which is promising in environment pollutants removal. This article mainly reviews the recent advances in environment contaminants removal with Bi-based photocatalysts. We first introduce several well-known Bi-based semiconductor materials and their preparation methods, and then summarize their applications for air purification, organic wastewater treatment, heavy metal ions removal, disinfection, and finally discuss the major problems in the field of bismuth-based photocatalysts, and prospect their further development in the future.
Contents
1 Introduction
2Bi-based photocatalysts and their preparation methods
2.1 Unary Bi-based photocatalysts
2.2 Binary Bi-based photocatalysts
2.3 Bismuth oxyhalides
3 Environment pollutants removal with Bi-based photocatalysts
3.1 Air purification
3.2 Refractory organic wastewater treatment
3.3 Inorganic wastewater treatment
3.4 Disinfection
4 Conclusion