催化剂AgSbO3的水热合成及其可见光催化活性

摘要

A new type of visible-light-driven photocatalyst AgSbO3 was prepared by hydrothermal synthesis method. The influence of pH values of the precursor, hydrothermal synthetic temperature and time on photocatalytic activities of AgSbO3 catalysts for the degradation of direct fast scarlet (4BS) dye wastewater was investigated. The as-prepared photocatalysts were characterized by XRD and SEM, The results showed that AgSbO3 catalyst hydrothermally synthesized under original pH value and 80 ℃ for 12 h exhibited the highest photocatalytic activity, and the decoloration rate for 4BS dye wastewater over AgSbO3 catalyst under this condition reached 94. 3%.%采用水热法合成了可见光催化剂AgSbO3,以直接耐酸大红4BS染料废水为目标污染物,研究前驱物pH、水热合成温度以及水热合成时间对催化剂的可见光催化活性和晶型等方面的影响,通过XRD和SEM进行表征.结果 表明,在原始pH、和80℃水热合成12 h条件下的AgSbO3活性最好,对目标污染物的降解率达到94.3％.