高等学校化学学报

高等学校化学学报

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MIL-101(Cr)基膜材料的制备及其双氯芬酸钠去除性能研究

胡晓静,谢晶晶,张雨欣,张郁涵,黄晓辉   

  1. 宁德师范学院新能源与材料学院，福建省特色生物化工材料重点实验室
  • 收稿日期:2025-06-03 修回日期:2025-07-26 网络首发:2025-08-01 发布日期:2025-08-01
  • 通讯作者: 黄晓辉 E-mail:huxiaojing9361@163.com
  • 基金资助:
    宁德师范学院 2021 年度重大项目培育计划青年项目（批准号: 2021ZDK08）资助

Researches on preparation of MIL-101(Cr)-based membranes for removing diclofenac sodium

HU Xiaojing, XIE Jingjing, ZHANG Yuxin, ZHANG Yuhan, HUANG Xiaohui   

  1. College of New Energy and Materials, Fujian Provincial Key Laboratory of Featured and Materials in Biochemical Industry, Ningde Normal University
  • Received:2025-06-03 Revised:2025-07-26 Online First:2025-08-01 Published:2025-08-01
  • Contact: HUANG Xiaohui E-mail:huxiaojing9361@163.com
  • Supported by:
    Supported by the Youth Project of 2021 Major Project Cultivation Plan of Ningde Normal University(No. 2021ZDK08)

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摘要： 本研究以一种结构稳定的MOFs——MIL-101(Cr)为吸附剂，以高分子化合物聚丙烯腈（PAN）为载体，制备了一种通过减压抽滤即可高效去除水溶液中双氯芬酸钠的MOFs混合基质膜材料——MIL-101@PAN。研究表明，所制备的膜材料具有疏松多孔的结构，膜厚度约为14 μm，而且随着MOFs含量的增加，膜材料的性能会得到明显提高。其中，当MOFs和高分子的质量比增加至40%（MIL-101(Cr)：PAN=2:5）时，所制备的膜材料MIL-101@PAN-2对双氯芬酸钠的去除效果最佳，特别是对20 mg·L-1的双氯芬酸钠水溶液可达到95.59%的双氯酚酸钠去除效率，而且在五轮循环中的去除效率也能保持在75%以上。此外，即使在含有与双氯酚酸钠等浓度（20 mg·L-1）的Na+、K+和NH4+的混合溶液中，该膜材料依然可以保持90%以上的去除效率。

关键词: MIL-101(Cr), 混合基质膜, 双氯芬酸钠

Abstract: Herein, a kind of MOF-based mixed-matrix membrane, MIL-101@PAN, capable of removing diclofenac sodium from aqueous solution by decompression filtration, was prepared based on a stable MOF, MIL-101(Cr), and polyacrylonitrile. According to our investigations, the obtained MOF-based membranes displayed loose and porous structure with a membrane thickness of about 14 μm. Otherwise, the performance of the membranes could be significantly improved with the increase of MOF content. Specifically, when the mass ratio of MOF to polymer reaches 40% (MIL-101(Cr): PAN = 2:5), the prepared membrane MIL-101@ PAN-2 exhibits the best removal performance for diclofenac sodium, particularly achieving a removal efficiency of 95.59% for a diclofenac sodium solution with a concentration of 20 mg·L-1, and maintaining a removal efficiency above 75% even after five cycles. Furthermore, even in a mixed solution containing Na+, K+, and NH4+ at concentrations comparable to those of diclofenac sodium(20 mg·L-1), the membrane can still maintain a removal efficiency of over 90%.

Key words: MIL-101(Cr), Mixed-matrix membrane, Diclofenac sodium

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