晶粒尺寸对ZnO纳米粒子光催化活性的影响  

The effect of grain size on photocatalytic activity of ZnO nanoparticles

作　　者：李娉婷[1] 朱全[1] 徐娜[1] 孟磊[2] 

机构地区：[1]吉林化工学院材料科学与工程学院,吉林吉林132022 [2]吉林化工学院理学院,吉林吉林132022

出　　处：《吉林化工学院学报》2016年第5期72-76,共5页Journal of Jilin Institute of Chemical Technology

摘　　要：采用水热合成法制备纳米ZnO材料,并用所制备的纳米材料光催化降解罗丹明B溶液,以罗丹明B的降解率作为评价方式,考察了不同浓度的氧化锌对光催化性能的影响.运用XRD对制备的样品进行了表征.结果表明:随着水热溶液中原料配比的浓度增大,氧化锌晶粒尺寸逐渐减小,光催化的活性增强.当氧化锌样品的浓度为150m M时,10mg/40ml的罗丹明B在紫外灯下降解率达93%.Nano zinc oxide（ZnO） materials,prepared by the method of hydrothermal synthesis,were used for photocatalytic degradation of Rhodamine B and the degradation rate of Rhodamine B was estimated. The influencing factor of photocatalytic performance is the different solution concentration of nano zinc oxide.Prepared samples were tested by XRD. It was concluded that with the concentration increasing gradually,the grain size of the nano zinc oxide decreases gradually,and the photocatalytic activity is best. When the solution concentration was 150 m M,the degradation rate of 10 mg /40 m L Rhodamine B was above 90% under UV irradiation.

关 键 词：ZNO 纳米粒子 晶粒尺寸 光催化 

分 类 号：TQ132.41[化学工程—无机化工]