FePc/TiO_(2)负载纳米纤维膜制备及光催化性能  

Preparation and Photo-catalytic Properties of FePc/TiO_(2) Loaded Nano-fiber Membranes

作　　者：吕明泽 刘利伟 刘子强 韩振邦[1] Lv Mingze;Liu Liwei;Liu Ziqiang;Han Zhenbang(School of Textile Science and Engineering,Tiangong University,Tianjin 300387,China;Tianjin Yunda Industry and Trade Co.,Ltd.,Tianjin 301600,China)

机构地区：[1]天津工业大学纺织科学与工程学院,天津300387 [2]天津市远大工贸有限公司,天津301600

出　　处：《针织工业》2021年第3期58-61,共4页Knitting Industries

基　　金：天津市技术创新引导专项基金项目(20YDTPJC00920);天津市应用基础与前沿技术研究计划青年项目(15JCQNJC06300);天津市高等学校科技发展基金计划项目(20140313)。

摘　　要：使用静电纺丝技术制备聚丙烯腈(PAN)纳米纤维,通过对其化学改性引入偕胺肟基团,然后借助配位作用同时负载酞菁铁(FePc)和二氧化钛(TiO_(2))制备了光催化剂,在对其形态结构和光吸收特性进行表征的基础上,考察其在有机染料氧化降解中的光催化性能。结果表明,FePc和TiO_(2)能够有效负载于改性PAN纳米纤维表面,并使其形貌发生明显变化。FePc能够作为光敏剂拓宽TiO_(2)催化剂的光谱响应范围,使其在可见光区显示出较强吸收,从而能够在可见光辐射下对染料的氧化降解反应显示出较高的光催化活性。此外,当改性PAN纳米纤维增重率为30.4%时,制备的光催化剂显示出最佳活性,而且其催化活性与可见光强度呈正相关性。Polyacrylonitrile(PAN)nano-fibers were firstly prepared by using electrostatic spinning technique,and then the amidoxime groups were introduced into the nano-fibers via chemical modification.Subsequently,iron phthalocyanine(FePc)and titanium dioxide(TiO_(2))were anchored onto the modified nano-fibers through coordination effect to obtain a novel photo-catalyst.The morphological structure and optical absorption properties of the photo-catalyst were characterized,and the photo-catalytic performance was investigated in oxidative degradation of organic dye.The results showed that FePc and TiO_(2) could be effectively loaded on the surface of the modified PAN nanofibers,leading to an obvious change on the morphology.FePc could be used as efficient photo-sensitizer to broaden the spectral response range of TiO_(2) catalyst,so as to show high photo-catalytic activity for oxidative degradation of organic dye under visible light radiation.In addition,the optimal weight gain rate of the photo-catalyst was found to be 30.4%,and the photo-catalytic activity was positively correlated with the visible light intensity.

关 键 词：纳米纤维 酞菁铁 二氧化钛 可见光催化 染料降解 

分 类 号：TS190.1[轻工技术与工程—纺织化学与染整工程]