氯离子协同增强十六氯铁酞菁/聚丙烯腈复合纳米纤维光催化降解性能  

Photocatalytic performance of iron hexadecachlorophthalocyanine/polyacrylonitrile composite nanofibers synergistically enhanced by chloride ion

作　　者：竺哲欣[1] 马晓吉 夏林 吕汪洋[1] 陈文兴[1] ZHU Zhexin;MA Xiaoji;XIA Lin;L Wangyang;CHEN Wenxing(School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China)

机构地区：[1]浙江理工大学材料科学与工程学院,浙江杭州310018

出　　处：《纺织学报》2021年第5期9-15,共7页Journal of Textile Research

基　　金：浙江省自然科学基金青年基金项目(LQ19E030023);国家自然科学基金青年基金项目(22006136)。

摘　　要：为提升粉末催化剂的催化活性及重复使用性能,高效去除高盐废水中的有机污染物,采用静电纺丝技术制备十六氯铁酞菁/聚丙烯腈(FePcCl16/PAN)复合纳米纤维。借助扫描电子显微镜、透射电子显微镜、X射线衍射仪等表征了纳米纤维的微观形貌、结晶结构等特性。选取卡马西平(CBZ)作为模型污染物,研究了氯离子存在下,FePcCl16/PAN复合纳米纤维光活化过一硫酸盐的催化降解活性。结果表明:FePcCl16可有效分散于PAN纳米纤维中,从而避免因FePcCl16分子团聚而影响催化活性;在模拟太阳光照射下,随着氯离子质量浓度的增加,FePcCl16/PAN复合纳米纤维催化活性逐渐增强;在较高氯离子质量浓度(6.0~18.0 g/L)下,CBZ及其降解产物(包括具有潜在毒性的氯代有机副产物)都能降解完全,FePcCl16/PAN复合纳米纤维循环降解5次后仍具有良好的催化降解性能。In order to improve the catalytic activity and reusability of the powder catalyst and effectively remove the organic pollutants in high salinity wastewater,iron hexadecachlorophthalocyanine(FePcCl16)/polyacrylonitrile(PAN)composite nanofibers were prepared using electrospinning technology.The composite nanofibers were characterized by field emission scaning electron microscopy,transmission electron microscopy and X-ray diffraction.Carbamazepine(CBZ)was selected as the model pollutant to study the photocatalytic degradation activity of photoactivated persulfate of composite nanofibers in the presence of chloride ions.The results show that FePcCl16 was well dispersed in PAN nanofibers,and FePcCl16 molecular clustering was successfully avoided to maintain its catalytic performance.Under simulated sunlight,the catalytic activity of composite nanofibers increased with the increase of chloride ion concentration.At higher chloride ion concentrations(6.0-18.0 g/L),CBZ and its degradation products(including potentially toxic chlorinated compounds)can be completely degraded.After 5 degradation recycling tests,FePcCl16/PAN still demonstrate good catalytic degradation performance.

关 键 词：有机污染物降解 静电纺丝 十六氯铁酞菁 纳米纤维 降解产物 光催化活性 废水处理 

分 类 号：O634.32[理学—高分子化学] X522[理学—化学]