可见光催化剂氧化铋的改性研究进展

Research Progress on Modification of Bismuth Oxide as Visible Light Photocatalyst

氧化铋(Bi_(2)O_(3))作为重要的半导体光催化材料,由于特殊的电子结构和优良的可见光响应性能,被认为是一种很有前景的可见光光催化剂,在光催化处理废水方面显示了良好的应用前景。但因Bi_(2)O_(3)光催化性能较低限制了它的应用,因此研究者对其进行改性,期望获得性能优越的Bi_(2)O_(3)光催化材料。综述总结了表面形貌调控、表面修饰、金属离子修饰以及半导体复合等几种改性方法,并对改性Bi_(2)O_(3)光催化材料的发展前景进行了展望。

As an important semiconductor photocatalytic material,bismuth oxide(Bi_(2)O_(3))is considered as a promising visible photocatalyst due to its special electronic structure and excellent visible light response performance.It displays a good application prospect in photocatalytic treatment of wastewater.However,the application of Bi_(2)O_(3) is limited by its low photocatalytic performance,therefore,Bi_(2)O_(3) pholocatalyst with superior performance is expected to be obtained by modifying methods by the researchers.In this review,a series of modification methods,such as surface morphology regulation,surface modification,metal ion modification and semiconductor combination,are summarized.Then,the future development of modified Bi_(2)O_(3) photocatalytic materials is prospected.