开口空心ZnS/CdS纳米微球的制备、表征及其光降解亚甲基蓝性能  

Preparation,characterization of ZnS/CdS hollow microspheres with small open holes and their photocatalytic degradation performance for methylene blue

作　　者：徐莉[1] 高红梅[1] 王月林[1] 刘宗瑞[1] 

机构地区：[1]内蒙古民族大学化学化工学院,内蒙古通辽028043

出　　处：《工业催化》2014年第6期478-482,共5页Industrial Catalysis

基　　金：国家自然科学基金(21261014)资助项目;内蒙古自然科学基金(2012MS50207)资助项目

摘　　要：采用非均相回流技术制备开口空心ZnS/CdS纳米微球,利用TEM和XRD对样品进行表征与分析,通过降解亚甲基蓝溶液和正交设计试验考察各影响因素。结果表明,催化剂用量是影响光降解亚甲基蓝的主要因素,在催化剂用量70 mg、m(ZnS)∶m(CdS)=1∶3和避光搅拌时间30 min条件下,浓度10 mg·L-1的亚甲基蓝溶液降解率达91.34%。ZnS/CdS hollow microspheres with small open holes were prepared by the heterogeneous-phase reflux technique and were characterized by TEM and XRD. The photocatalytic properties of the catalysts for degradation of methylene blue solution were investigated by orthogonal experiments. The results showed that the catalyst dosage was the main influencial factor for the degradation of methylene blue. The degradation rate of methylene blue reached 91.34% under the optimum reaction condition as follows：catalyst dosage 70 mg, m （ZnS） ： m （CdS） = 1 ： 3, the dark stirring time 30 min, and concentration methylene blue 10 mg · L^-1.

关 键 词：水污染防治工程 硫化锌 硫化镉 光催化 亚甲基蓝 

分 类 号：TQ426.6[化学工程] TQ034