溶剂热法制备ZnS粉体及其光催化性能研究

Preparation of ZnS Powder by Solvothermal Method and Photocatalytic Properties Research

以醋酸锌和硫脲为反应物,采用溶剂热法一步制备了ZnS粉体,采用XRD、SEM等测试了样品的结构和微观形貌,并以甲基橙为模拟污染物,在紫外光照射下测试了产物的光催化性能。结果表明:随着硫脲配比的逐渐增加,产物的结晶度也逐渐提高;当反应温度为190℃,醋酸锌和硫脲的摩尔比为1∶1时,所得ZnS样品对甲基橙溶液的光催化降解效率比较高。

ZnS powders were prepared by solvothermal method with Zn(CH3COO)2·2H2O and CH4N2S as reactants.Microstrcutures of ZnS were characterized by XRD,SEM,etc.,and methyl orange was used as a simulated pollutant,the photocatalytic performance of the product was tested under ultraviolet light.The results showed that the degree of crystallization were increased with the increment of the CH4N2S.When the reaction temperature is 190°C and the Zn/S mole ratio is 1:1,the photocatalytic degradation efficiency of the obtained ZnS sample on methyl orange solution is relatively high.