氧化锌制备及其光催化活性研究  

Study on preparation and photocatalytic activity of ZnO

作　　者：崔玉民[1,2] 李慧泉[1,2] 苗慧[1,2] 凡素华[1,2] 张坤[1] 范峻 

机构地区：[1]阜阳师范学院化学化工学院,阜阳236041 [2]安徽环境污染物降解与监测省级实验室,阜阳236041

出　　处：《化工新型材料》2015年第5期100-102,共3页New Chemical Materials

基　　金：国家自然科学基金(21201037);安徽省自然科学基金项目(1408085MB35);安徽省高等学校省级自然科学研究重点项目(KJ2014A191);安徽省高校优秀青年人才基金重点项目(2013SQRL058ZD);阜阳师范学院科技成果孵化基金项目(2013KJFH01);阜阳师范学院校企合作实践教育基地(2013JYFH05)

摘　　要：以二水合醋酸锌为原料、二甘醇为溶剂,采用非水解溶胶-凝胶过程的方法合成了氧化锌(ZnO)光催化剂,并用XRD对其进行了表征。以甲基橙为光催化反应的模型化合物,考察了ZnO光催化剂的紫外及可见光催化活性。探索添加不同清除剂(异丙醇、草酸铵、对苯醌、H2O2酶)后对紫外及可见光催化活性的影响;以对苯二甲酸作为探针分子,结合化学荧光技术研究了ZnO光催化剂表面羟基自由基的生成。实验结果表明:此方法制备的ZnO具有良好的光催化性能。Using hydrated zinc acetate as raw material and diethylene glycol as solvent, zinc oxide was synthesized by the method of nonhydrolytic sol-gel process. The catalyst was characterized by XRD. With methyl orange as the model compound of photocatalytie reaction, photocatalytic activities of zinc oxide at UV and visible light were investiga- ted, Changing of photocatalytic activities at ultraviolet and visible light were investigated after adding a variety of scaven- ger. The formation of hydroxyl radical on the surface of ZnO of heterogeneous photocatalysts was studied by terephthalic acid as a probe molecule, combined with fluorescence technique. The experimental results showed that ZnO photocatalyst prepared in this experiment had a good photocatalytic performance.

关 键 词：氧化锌 光催化 甲基橙 荧光技术 

分 类 号：O614.241[理学—无机化学] O643.36[理学—化学]