Modification strategies for enhancing the visible light responsive photocatalytic activity of the BiPO4 nano-based composite photocatalysts

Abstract

Semiconductor photocatalysts such as TiO₂, ZnO, g-C₃N₄, BiPO₄, etc., have received significant research interest due to the ability of these metals to convert pollutants into CO₂ and H₂O for environmental applications in areas such as energy, environmental purification and wastewater treatment. A nonmetallic oxyacid type photocatalyst, BiPO₄, is now commonly accepted as a high-class photocatalyst as compared to TiO₂ and other photocatalysts in the ultraviolet (UV) region. Herein, the novel structure and the modification techniques of full-bodied BiPO₄ nano-based photocatalysts are presented, and the present-day improvements in the photocatalytic activity of BiPO₄via its emerging crystal structure modification strategies are highlighted, along with preparation techniques for the nano-based composite photocatalyst. An account is also given of the use of the remarkable structural properties and the modification techniques of BiPO₄ nano-based photocatalysts. It is expected that this report will enlighten scientists on the precise management and evaluation of the environment, which may lead to prospective research on developing a suitable mechanism for applications in energy, wastewater treatment and environmental purification.