静电纺丝PVA/CS纳米纤维膜的制备及其吸附性能  

Preparation of PVA/CS nanofiber membrane by electrospinning and its adsorption properties

作　　者：杨海贞 王一冰 马闯 黄康帅 李旭茹 YANG Haizhen;WANG Yibing;MA Chuang;HUANG Kangshuai;LI Xuru(College of Intelligent Textile and Fabric Electronics,Zhongyuan University of Technology,Zhengzhou 450007,China)

机构地区：[1]中原工学院智能纺织与织物电子学院,河南郑州450007

出　　处：《印染》2025年第3期45-49,共5页China Dyeing and Finishing

基　　金：河南省高等学校重点科研项目(25B540002);国家级大学生创新创业训练计划项目(202410465024);河南省大学生创新创业训练计划项目(202410465026);河南省科技攻关项目(222102230065);中原工学院青年人才创新能力基金项目(K2020QN003)。

摘　　要：采用静电纺丝法制备新型壳聚糖(CS)/聚乙烯醇(PVA)纳米纤维膜,并将其用于水中重金属离子和有机污染物的去除。通过优化静电纺丝工艺参数来调整纳米纤维的形态,得到的PVA/CS纳米纤维膜具有多孔和均匀的纳米纤维结构,平均直径为205 nm。此外,使用Cu^(2+)和刚果红作为目标离子和染料,评估了PVA/CS纳米纤维膜的吸附性能。结果表明,PVA/CS纳米纤维膜对Cu^(2+)和刚果红的吸附容量分别为72.27 mg/g和19.99 mg/g。重金属离子和染料在纳米纤维膜上的吸附热力学符合Freundlich模型。A novel chitosan(CS)/polyvinyl alcohol(PVA)nanofiber membrane prepared by electrospinning is studied for the removal of heavy metal ions and organic pollutants from water.The morphology of the nanofibers is adjusted by optimizing the parameters of electrospinning process.Under the optimized conditions,the obtained PVA/CS nanofiber membrane has a porous and uniform nanofiber structure with an average diameter of 205 nm.In addition,the adsorption properties of PVA/CS nanofiber membranes are evaluated using Cu2+and Congo Red as target ions and dyes.The results show that the adsorption capacities of PVA/CS nanofiber membranes for Cu^(2+)and Congo Red are 72.27 mg/g and 19.99 mg/g,respectively.The thermodynamics of adsorption of heavy metal ions and dyes on nanofiber membranes can be explained by Freundlich model.

关 键 词：静电纺丝 壳聚糖 聚乙烯醇 刚果红 铜离子 纳米纤维膜 

分 类 号：TQ340.64[化学工程—化纤工业] O647.3[理学—物理化学] X703[理学—化学]