PAN/TiO2纳米纤维膜的制备与性能分析  

Preparation and Performance Investigation of PAN/TiO2 Nanofiber Membranes

作　　者：卢晓龙 柳炫羽 丁恩普 张贝贝 于翔 秦刚[1] LU Xiaolong;LIU Xuanyu;DING Enpu;ZHANG Beibei;YU Xiang;QIN Gang(School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454001,China;Department of Material and Chemical Engineering,Henan University of Engineering,Zhengzhou 450007,China)

机构地区：[1]河南理工大学材料科学与工程学院,河南焦作454001 [2]河南工程学院材料与化学工程学院,郑州450007

出　　处：《中国塑料》2020年第4期30-34,共5页China Plastics

摘　　要：通过静电纺丝和水热处理的方法成功制备了高效、可回收利用的聚丙烯腈/二氧化钛(PAN/TiO2)纳米纤维膜。采用扫描电子显微镜、X射线衍射和亚甲基蓝(MB)降解率等对PAN/TiO2纳米纤维膜形貌、晶体结构、力学性能以及光催化活性进行表征。结果表明,钛酸四丁酯(TBT)的添加有效减小了纤维直径;水热处理成功将TBT转化为锐钛矿TiO2,并且PAN/TiO2纳米纤维膜强度均高于纯PAN;紫外光照射120 min后,纤维膜对MB光催化降解率最大可达到94.8%,同时连续5次回收再利用后纤维膜仍保持良好的光催化活性。Highly efficient and recyclable polyacrylonitrile(PAN)/TiO2 nanofiber membranes were prepared by means of electrospinning and hydrothermal treatment,and their morphology,crystalline structure,mechanical properties and photocatalytic activity were characterized by SEM,XRD and the degradation efficiency of methylene blue(MB).The results indicated that the fiber diameter was reduced effectively with the addition of tetrabutyl titanate which could be successfully transferred into anatase TiO2 under the hydrothermal treatment.The strength of the PAN/TiO2 membranes was found to be higher than that of pure PAN membrane.The membranes exhibited a maximum photocatalytic degradation efficiency of 94.8%for MB after ultraviolet irradiation for 120 min,and a great photocatalytic activity was maintained for the membranes after five?time recycling.

关 键 词：聚丙烯腈 二氧化钛 纳米纤维 静电纺丝 光催化 

分 类 号：TQ322.4[化学工程—合成树脂塑料工业]