静电纺制备TiO_2米纤维及光催化性能研究  

Electrospinning synthesis and photocatalytic property of TiO_2 nanofibers

作　　者：陈克[1] 刘科[2] 罗磊[1] 张玄[1] 乔辉[1] 王晓玲[1] 

机构地区：[1]江南大学生态纺织教育部重点实验室,无锡214122 [2]湖北文理学院低维光电材料与器件湖北省重点实验室,襄阳441053

出　　处：《化工新型材料》2014年第11期53-55,共3页New Chemical Materials

基　　金：国家自然科学基金(21201083);低维光电材料与器件湖北省重点实验室开放基金资助(13XKL01002);江苏省高校研究生科研创新计划(CXLX13-742)

摘　　要：以聚乙烯吡咯烷酮(PVP)、钛酸四正丁酯(TBT)和乙醇溶剂为主要原料,采用静电纺丝法制备TBT与PVP质量比为9:1的TBT/PVP复合纳米纤维,经过不同温度煅烧得到TiO2米纤维。分别通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)和热重分析(TG)等测试手段对该材料进行形貌、结构等表征。最后,以亚甲基蓝为目标污染物,在模拟紫外线照射的条件下,研究其光催化活性。结果表明:经600℃煅烧后得到的TiO2米纤维具有最好的光催化活性,降解6h后光催化效率为95.5%。The TBT/PVP（9 ： 1） composite nanofibers consisting of polyvinyl pyrrolidone （PVP）, tetrabutyl titanate （TBT） and ethanol as solvent were successfully fabricated by the technique of electrospinning, then titanium dioxide nanofibers were prepared by annealing TBT/PVP composite nanofibers at different temperatures which obtained by electrospinning. The structure and morphology of the obtained materials were characterized by scanning electron microscope（SEM）, transmission electron microscope（TEM）, x-ray diffraction（XRD）, and thermogravimetry（TG）. The photocatalytic activity of TiO2 nanofibers were studied under the condition that simulated ultraviolet irradiation was used as irraditon light source, and methylene blue was used as target pollutant. The results showed that TiO2 nanofibers which obtained under 600℃ calcinated had the best photocatalytic activity,the degradation efficiency was 95.5 % after 6 hours irradiation.

关 键 词：静电纺丝 二氧化钛 纳米纤维 光催化性能 

分 类 号：TQ343.5[化学工程—化纤工业] O643.36[理学—物理化学]