苯丙乳液静电纺丝制备TiO_2纳米纤维及其光催化活性研究  

TiO_2 nanofibers prepared by the poly(styrene-butyl acrylate)emulsion electrospinning

作　　者：郭春平[1] 石艳[1] 曹鼎[1] 

机构地区：[1]北京化工大学化工资源有效利用国家重点实验室,北京100029

出　　处：《化工新型材料》2016年第3期73-75,共3页New Chemical Materials

基　　金：国家自然青年基金(51203008);国家自然基金面上项目(51373021)

摘　　要：通过乳液聚合法合成无规苯丙乳液,然后与钛酸四丁酯混纺制备含Ti的复合纳米纤维,经高温煅烧成功制备了TiO_2纳米纤维。探讨了在乳液固含量与助纺剂PVA的质量比为8∶1时对在不同的煅烧温度下所得纤维的形貌及TiO_2晶型的影响。采用扫描电镜(SEM)和X射线晶体衍射(XRD)对产物进行了表征。探究了制得的TiO_2纳米纤维在紫外光下对亚甲基蓝的光催化降解活性。Poly（styrene-butyl acrylate）latex was synthesized by emulsion polymerization.Then composite nanofibers containing titanium were prepared by electrospinning of the mixed dispersion of tetrabutyl titanate and the resulted poly（styrene-butyl acrylate）emulsion.TiO_2 nanofibers were prepared after high-temperature calcination.The effects of different calcination temperature on the fiber morphology and the crystal type of TiO_2 were discussed.TiO_2 nanofibers were characterized by scanning electron microscopy（SEM）and X-ray crystal diffraction（XRD）.At last,the photocatalytic activity of TiO_2 nanofibers was explored by degradation of methylene blue under ultraviolet light.

关 键 词：静电纺丝 苯丙乳液 TIO2 光催化 

分 类 号：TQ340.64[化学工程—化纤工业]