PAN纤维表面原位合成BiOCl及光催化降解性能  

In Situ Synthesis of BiOCI on the Surface of PAN Fiber and Its Photocatalytic Degradation Performance

作　　者：李国斌 王涛[1] 刘利伟 韩振邦[1] Li Guobin;Wang Tao;Liu Liwei;Han Zhenbang(School of Textile Science and Engineering,Tiangong University,Tianjin 300387,China;Tianjin Yuanda 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》2023年第12期79-82,共4页Knitting Industries

基　　金：国家自然科学基金项目(52003192);天津市技术创新引导专项基金项目(20YDTPJC00920)。

摘　　要：使用含有偕胺肟基团的改性聚丙烯腈纤维作为基材,通过溶剂热法在纤维表面原位合成了氯氧化铋(BiOCl)光催化剂,并对其表面形貌、结晶性能和分子结构进行表征分析,考察其在可见光下对染料废水氧化降解的催化作用。结果表明,BiOCl能够通过Bi离子与偕胺肟基团的配位作用与纤维载体进行结合,并在纤维表面形成结晶度较高的层状结构。所制备的纤维光催化剂能够在可见光下有效催化染料的降解反应,而且制备过程中有机溶剂的选择对其光催化活性影响显著。此外,纤维光催化剂在可见光强度为80 mW/cm^(2)时显示出最高的光催化活性,该体系对不同结构的染料均具有一定的光催化降解性能。A fibrous photocatalyst was been prepared by in situ synthesis of bismuth oxychloride(BioCI)onto an amidoximated Polyacrylonitrile(PAN)fiber support using a solvo-thermal method.Then the surface morphology,crystalline properties and molecular structure of the as-prepared photocatalyst were investigated,and its photocatalytic performance towards dye degradation in water was also evaluated under visible light irradiation.The results show that BiOCl is immobilized onto the fiber support through coordination bonds between Bi ions and the amidoxime groups,forming a stratified structure with high crystaline on the fiber surface.The as-prepared fibrous photocatalyst can effectively catalyze the dye degradation under visible light irradiation,and the organic solvent used during the preparation process greatly affects the photocatalytic activity.In addition,the fibrous photocatalyst exhibits the highest photocatalytic activity when the light intensity reaches 80 mW/cm^(2),and the photocatalytic system shows certain photocatalytic degradation activity towards several dyes with different chemical structures.

关 键 词：PAN纤维 氯氧化铋 原位合成 可见光催化 染料降解 

分 类 号：X791[环境科学与工程—环境工程]