氧化锌纳米纤维的制备及其光催化性能  

Preparation and photocatalytic properties of ZnO nanofibers

作　　者：许淑燕[1,2] 张培培[1] 熊杰[1] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018 [2]杭州职业技术学院达利女装学院,浙江杭州310018

出　　处：《纺织学报》2011年第3期15-20,共6页Journal of Textile Research

基　　金：长江学者和创新团队发展计划资助项目(IRT0654);先进纺织材料与制备技术教育部重点实验室开放基金资助项目(2006003)

摘　　要：采用静电纺丝法制备出PVP/Zn(CH3COO)2复合纳米纤维,经烧结得到ZnO纳米纤维。用热重分析仪、X射线能谱仪、傅里叶红外光谱仪、X射线衍射仪和场发射扫描电镜来表征烧结前后纤维的纯度、晶型和表面形貌。以ZnO纳米纤维对亚甲基蓝溶液进行光催化降解研究,考察了光照时间、烧结温度对光催化降解效果的影响。对照自制ZnO纳米颗粒的光催化降解效果,证明ZnO纳米纤维不仅具有良好的光催化性能,还具有很好的重复使用性能。PVP /Zn（CH3COO）2 composite nanofibers were prepared by electrospinning,and then subjected to high temperature sintering to obtain ZnO nanofibers.Thermal gravimetric analysis,X-ray energy dispersive spectroscopy,fourier transform infrared spectroscopy,X-ray diffraction and field-emission scanning electron microscope were used to characterize the purity,crystal form,and morphology of the fibers before and after sintering.Experiments were carried out using methylene blue（MB） as the pollutant object to evaluate the photocatalytic activity of ZnO nanofibers.The effects of the UV irradiation time and the sintering temperature on the degree of photocatalytic degradation were investigated.Compared to ZnO nanoparticles,it is shown that ZnO nanofibers have good photocatalytic properties and reuse performance.

关 键 词：纳米纤维 ZNO 静电纺丝 聚乙烯吡咯烷酮 光催化降解 

分 类 号：TB321[一般工业技术—材料科学与工程] TB34