静电纺丝法制备碳掺杂TiO_2纳米纤维及其光降解性能研究  

Preparation and photocatalytic property of C/Ce-doped TiO_2 nanofiber

作　　者：宋春雨[1] 吕帛凝 侯晓锐 鄂星宇 邵天义 孟臻[1] 李晓强[1] 葛明桥[1] 

机构地区：[1]江南大学纺织服装学院,江南大学生态纺织重点实验室,无锡214122

出　　处：《化工新型材料》2016年第3期101-103,共3页New Chemical Materials

基　　金：江苏省基础研究计划(自然科学基金)青年基金项目(BK20130146,BK20140432)

摘　　要：通过静电纺丝方法,以聚丙烯腈(PAN)为成纤材料、钛酸四丁酯为钛源,制备含钛纳米纤维前驱体,经高温煅烧得到碳掺杂的二氧化钛(TiO_2)纳米纤维。采用电子显微镜、傅里叶红外光谱、热重、X-射线衍射仪等对纳米纤维的表面形态、化学组成、晶相结构等物理化学性能进行研究,并研究其光降解染料甲基橙的催化能力。结果表明在550℃下焙烧1h后,TiO_2主要以锐钛矿晶型结构存在,PAN经高温碳化对TiO_2形成碳掺杂。光降解研究结果表明,100mg碳掺杂TiO_2纳米纤维膜光催化降解甲基橙的效率为0.0336mg/h。C-doped TiO_2 nanofibers were fabricated by electrospinning from the blend solution,in which polyacrylonitrile（PAN）was used as filament materials,and tetrabutyl titanate as the Ti-source,respectively,followed by calcination at 550℃for 1h.The physicochemical properties of final C-doped TiO_2 nanofibers were characterized using scanning electron microscopy（SEM）,fourier transform infrared spectrometer（FT-IR）,thermogravimetric nalysis（TG）and X-ray diffraction.The results demonstrated that titanium dioxide presented titanium mineral crystal structure after calcination.Furthermore,C-doped TiO_2 nanofibers showed significant enhancement of photocatalytic ability.

关 键 词：二氧化钛 光降解催化 聚丙烯腈纳米纤维 静电纺丝 碳掺杂 

分 类 号：TQ343.5[化学工程—化纤工业]