PVDF/CA/CNTs纳米纤维膜的制备及其对Cu^(2+)的吸附  

Preparation of PVDF/CA/CNTs nanofibers and their adsorption of Cu^(2+)

作　　者：杨海贞 王一冰 马闯 翟笑丽 何名勉 王新雨 YANG Haizhen;WANG Yibing;MA Chuang;ZHAI Xiaoli;HE Mingmian;WANG Xinyu(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2期57-61,共5页China Dyeing and Finishing

基　　金：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);河南省大学生创新创业训练计划项目(202410465024,202410465026);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)。

摘　　要：以醋酸纤维素(CA)、聚偏氟乙烯(PVDF)和多壁碳纳米管(CNTs)为原料,通过静电纺丝法成功制备了PVDF/CA/CNTs纳米纤维膜,用于高效去除废水中的Cu^(2+)。PVDF/CA/CNTs纳米纤维膜的纤维直径为1.18μm,疏水性和力学性能较佳。PVDF/CA/CNTs纳米纤维膜对Cu^(2+)的最佳吸附条件为:Cu^(2+)溶液pH 5,Cu^(2+)的初始质量浓度300 mg/L,吸附时间120 min,纤维膜对Cu^(2+)的最大吸附容量为100.92 mg/g。PVDF/CA/CNTs纤维膜对Cu^(2+)的吸附过程更符合Langmuir模型。PVDF/CA/CNTs纳米纤维膜可作为含Cu^(2+)废水的有效吸附剂。PVDF/CA/CNTs nanofiber membranes are successfully prepared by electrospinning using cellulose acetate(CA),polyvinylidene fluoride(PVDF)and multi-walled carbon nanotubes(CNTs)as raw materials for the efficient removal of Cu^(2+)in wastewater.The fiber diameter of PVDF/CA/CNTs nanofiber membrane is 1.18μm,and the hydrophobicity and mechanical properties are good.The optimal adsorption conditions of Cu^(2+)by PVDF/CA/CNTs nanofiber membranes are the pH of Cu^(2+)solution of 5,the initial concentration of Cu^(2+)of 300 mg/L,the adsorption time of 120 min,and the maximum adsorption capacity of Cu^(2+)of 100.92 mg/g.The adsorption process of Cu^(2+)by PVDF/CA/CNTs fiber membranes is more in line with the Langmuir model.PVDF/CA/CNTs nanofiber membranes can be used as effective adsorbents for Cu^(2+)-containing wastewater.

关 键 词：醋酸纤维素 碳纳米管 静电纺丝 Cu^(2+) 吸附性能 

分 类 号：TQ340.64[化学工程—化纤工业] X703[环境科学与工程—环境工程] O647.3[理学—物理化学]