Pechini法制备ZnO粉体及其光催化性能  

Synthesis and photocatalytic activity of ZnO powder by Pechini method

作　　者：张影[1] 张静[1] 曲春禹 阎松[1] 

机构地区：[1]辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001

出　　处：《应用化工》2016年第6期1007-1010,1014,共5页Applied Chemical Industry

基　　金：国家自然科学基金(21573101)

摘　　要：采用Pechini法制备ZnO粉体催化剂,并以罗丹明B为模拟污染物,对其光催化性能进行分析。考察了热处理温度、时间、交联剂用量及凝胶化方式对ZnO粉体结构、晶粒尺寸、比表面积及性能的影响。结果表明,ZnO晶粒尺寸随着热处理温度升高、热处理时间的延长而增加。同时,热处理条件与凝胶化过程对光催化降解率影响显著。当交联剂与络合剂的摩尔比为1∶1时,Rh B的降解率可达到93%。The ZnO powders were synthesized by Pechini method.Photocatalytic degradation of Rhodamine B（RhB） was used as a probe reaction to evaluate the photocatalytic activity.The effects of sintering temperature,sintering time,cross-linking agent amount and gel process on structure,grain size and property of ZnO powder were studied.The results show that grain sizes of ZnO were increased with sintering temperature increased and sintering time prolonged.Meanwhile,heat treatment and gel process have great effects on the photocatalytic activity of ZnO.The photocatalytic degradation reaches 93% when molar ration of cross-linking and chelating agent was 1∶1.

关 键 词：Pechini法 ZnO粉体 光催化降解 罗丹明B 

分 类 号：TQ016[化学工程] TB321[一般工业技术—材料科学与工程]