首页|磁性壳聚糖杂化纳滤膜的制备及脱盐性研究

磁性壳聚糖杂化纳滤膜的制备及脱盐性研究

扫码查看
以聚丙烯腈为基膜材料、磁性壳聚糖(MCs)为掺杂剂,制备了纳滤膜.采用热重分析、红外光谱分别对膜的热稳定性及表面官能团进行了表征.考察了掺杂剂含量、进料浓度和跨膜压力等因素对纳滤膜的脱盐性影响.结果表明:随膜内MCs含量增大,膜的热稳定性提高,对Ca2+截留率先增后减.在进料浓度40 mg-L-1和跨膜压力0.10 MPa操作条件下,由质量分数为2%MCs原料所制备的纳滤膜对Ca2+截留率达100%.
Investigation of the preparation and desalination property of magnetic chitosan hybrid nanofiltration membranes
Nanofiltration membranes were prepared using polyacrylonitrile as membrane matrix and mag-netic chitosan(MCs)as dopant.The thermal stability and surface functional groups of the membranes were correspondingly characterized by thermogravimetric analysis and infrared spectroscopy.The effects of some factors including dopant content,feed concentration and trans-membrane pressure on the desalina-tion of the membranes were investigated.The results show that the thermal stability of the nanofiltration membrane increases,and the Ca2+rejection first increases then decreases,with the increasing of MCs content in membranes.The Ca2+rejection can reach to 100%for the as-prepared nanofiltration mem-branes with MCs content of 2%in raw materials under the conditions of feed concentration of 40 mg·L-1 and transmembrane pressure of 0.10 MPa.

nanofiltration membraneindustrial wastewaterCa2+magnetic chitosan

邓博、郭诗琪、吴永红、黄鹤鸣、张兵

展开 >

沈阳工业大学石油化工学院,辽宁 辽阳 111003

纳滤膜 工业废水 Ca2+ 磁性壳聚糖

2025

化学工业与工程
天津化工学会 天津大学

化学工业与工程

北大核心
影响因子:0.406
ISSN:1004-9533
年,卷(期):2025.42(1)