燃烧合成法制备的Er-ZnO纳米颗粒及其光催化性能研究  

Preparation of Er-ZnO nanoparticles by combustion synthesis and its photocatalytic property

作　　者：戚丽 方洋 颜冬仙 杨娜 张来军 邹如意 Qi Li;Fang Yang;Yan Dongxian;Yang Na;Zhang Laijun;Zou Ruyi(College of Chemistry and Environmental Science,Jiangxi Province Key Laboratory of Polymer Preparation and Processing,Shangrao Normal University,Shangrao 334001)

机构地区：[1]上饶师范学院化学与环境科学学院江西省塑料制备成型重点实验室

出　　处：《化工新型材料》2019年第12期201-205,共5页New Chemical Materials

基　　金：国家自然科学基金资助项目（21561028）;江西省塑料制备成型重点实验室开放课题（jxsr201602、jxsr201704）;上饶师范学院校级课题（201601、201502）;上饶师范学院大学生科技课题（2016dxs30）

摘　　要：以硝酸锌为锌源,柠檬酸为燃烧剂,采用燃烧合成法制备了掺杂铒(Er)的纳米氧化锌(ZnO)(Er-ZnO),并对样品进行了测试。考察了不同Er-ZnO在紫外光照条件下催化降解罗丹明B的效率。结果表明:制得的ZnO为六边纤锌矿,粒径为50~300nm的多面体颗粒,并组合成多孔块体,Er用量为0.8%(wt,质量分数)的Er-ZnO经700℃煅烧3h后的光催化效果最佳,在Er-ZnO用量为0.5g,紫外光照3h,120mL罗丹明B浓度为0.02g/L,溶液pH=9条件下,对罗丹明B的降解率达到92.4%。Er-doped ZnO nanoparticles(Er-ZnO)were synthesized using zinc nitrate as zinc source and citric acid as combustion agent via combustion synthesis method,and were tested.The photocatalytic activity of different ErZnO toward the degradation of Rhodamine B were studied under ultraviolet light.The results showed that ZnO possessed hexagonal wurtzite structure,presented polyhedral particle with size of 50~300 nm,which combined into porous blocks.The 0.8%(wt,mass fraction)Er-doped ZnO calcinated at 700℃ for 3 h exhibited the highest photocatalytic ability,and the degradation rate of 0.5 g sample to rhodamine B solution(0.02 g/L,pH=9)reached92.4% under UV irradiation for 3 h.

关 键 词：燃烧合成法 氧化锌 铒 掺杂 罗丹明B 光催化 降解率 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] TB383.1[一般工业技术—材料科学与工程]