生物炭基Bi系光催化剂的性能调控方法及其在环境领域的应用进展

Performance Regulation Methods of Biochar-Based Bi-Based Photocatalyst and Its Application Progress in the Environmental Field

由于具有优异的性能、独特的层状结构、可调的价导带位置和合适的带隙,Bi系材料是近年来被广泛研究的一类新型光催化剂,在环境保护和生态修复领域具有广阔的应用前景。生物炭具有成本低廉、碳负排放、孔径丰富等特性,是光催化剂的良好载体。介绍了生物炭基Bi系光催化剂的性能调控方法,分析了生物炭对Bi系光催化剂的性能增强机制,并重点阐述了生物炭基Bi系光催剂在抗生素、重金属去除等环境净化方面的应用研究进展,讨论了该领域所存在的问题、挑战及其未来的发展方向。

Due to its excellent performance,unique layered structure,adjustable valence-conduction band position and suitable band gap,the Bi-based material is a new type of photocatalyst that has been widely studied in recent years,which has broad application prospects in environmental protection and ecological restoration fields.Biochar has the characteristics of low cost,negative carbon emission,abundant pore sizes,etc.,and it is a good carrier for photocatalysts.This paper introduces the performance regulation methods of biochar-based Bi-based photocata‐lysts,analyzes the enhancement mechanism of biochar on the performance of Bi-based photocatalysts,focuses on the research progress of the application of biochar-based Bi-based photocatalysts in environmental purification such as antibiotics and heavy metal removal,and discusses the existing problems,challenges and future possible develop‐ment directions in this field.