戊二醛交联的CDA/HBP-NH纳米纤维膜用于吸附废水中的重金属离子
Glutaraldehyde cross-linked CDA/HBP-NH nanofiber membrane for adsorption of heavy metal ions in wastewater.
作者信息
Chuanfeng Zang, Xiangye Han, Erying Dong, Feiyu Shen, Tingting Yan, Runyue Wang, GuangyuYu Zhang
机构信息
National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, Nantong University Nantong Jiangsu 226019 P. R. China
Zhejiang Kingsafe Nonwoven Fabric Group Co., Ltd Huzhou Zhejiang 313100 China.
出版信息
RSC Adv. 2021 Dec 6;11(62):38982-38989. doi: 10.1039/d1ra06156a.
A new type of nanofiber membrane was prepared by mixed electrospinning of cellulose diacetate and amino-terminated hyperbranched polymer (HBP-NH), and glutaraldehyde (GA) crosslinking was used to improve its water resistance and shape retention. pH, adsorption time, and initial solution concentration on Cu(ii) and Cr(vi) ions were studied. Results showed that the prepared GA-CDA/HBP-NH nanofiber had good spinning uniformity, hydrophilicity, and adsorption effect on Cu(ii) and Cr(vi) ions compared with the pure CDA nanofiber. The maximum adsorption capacity of GA-CDA/HBP-NH for Cu(ii) and Cr(vi) was 50.2 and 176.6 mg g, respectively.
通过二醋酸纤维素与氨基封端的超支化聚合物（HBP-NH）的混合静电纺丝制备了一种新型纳米纤维膜，并使用戊二醛（GA）交联来提高其耐水性和形状保持性。研究了pH值、吸附时间以及初始溶液浓度对Cu（II）和Cr（VI）离子的影响。结果表明，与纯CDA纳米纤维相比，制备的GA-CDA/HBP-NH纳米纤维具有良好的纺丝均匀性、亲水性以及对Cu（II）和Cr（VI）离子的吸附效果。GA-CDA/HBP-NH对Cu（II）和Cr（VI）的最大吸附容量分别为50.2和176.6 mg/g。
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