Co掺杂ZnO微/纳米纤维的制备及其光催化性能  

Preparation and photocatalytic characterization of Co-doped ZnO micro/nanofibers

作　　者：余花娃[1,2] 樊慧庆[1] 王晶[1,2] 王欣[2] 成鹏飞[2] 严祥安[2] 

机构地区：[1]西安工程大学理学院,陕西西安710048 [2]西北工业大学材料学院,陕西西安710072

出　　处：《纺织高校基础科学学报》2014年第2期244-247,共4页Basic Sciences Journal of Textile Universities

基　　金：国家自然科学基金资助项目(51277138);陕西省教育厅专项科研计划项目(2012JK0981)

摘　　要：以聚乙烯吡咯烷酮(PVP)为络合剂,与醋酸锌(Zn(CH3COO)2)和乙酸钴(Co(CH3COO)2)反应制得前驱体溶液.采用静电纺丝法制备了PVP/Zn(CH3COO)2/Co(CH3COO)2复合微/纳米纤维,经过高温煅烧得到Co掺杂ZnO微/纳米纤维.采用热重分析(TG)、X射线衍射(XRD)、扫描电镜(SEM)等手段对其进行了表征.以甲基橙模拟有机污染物,考察紫外光照射下所得Co掺杂ZnO微/纳米纤维的降解效果.实验结果表明,所制备的Co掺杂ZnO微纳米纤维对甲基橙溶液具有良好的光催化性能,在光照80min后降解率可达93%.Polyvinylpyrrolidone（PVP）used as a complexant,is reacted with zinc acetate（Zn（CH3COO）2）and cobaltous acetate（Co（CH3COO）2）to prepare precursor solution.Co-doped ZnO micro/nanofibers can be prepared after calcinating the PVP/Zn（CH3COO）2/Co（CH3COO）2electrospun nanofibers.The obtained fiber is characterized by differential thermal gravimetric analysis（TG）,XRD diffraction analysis（XRD）and scanning electron microscopy（SEM）.The photocatalytic activity of nanofibers toward the decomposition of methyl orange was investigated.The results show that Co-doped ZnO micro/nanofibers has an excellent photocatalytic activity of methyl orange,with a degeneration rate of 93%at 80min.

关 键 词：静电纺丝 微 纳米纤维 光催化降解 

分 类 号：O643.3[理学—物理化学]