中文摘要：

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%.

英文摘要：

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.