高等学校化学学报 ›› 2025, Vol. 46 ›› Issue (10): 20250153.doi: 10.7503/cjcu20250153

• 物理化学 • 上一篇    下一篇

MIL-101(Cr)基膜材料的制备及双氯芬酸钠去除性能

胡晓静, 谢晶晶, 张雨昕, 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,宁德 352100
  • 收稿日期:2025-06-03 出版日期:2025-10-10 发布日期:2025-08-01
  • 通讯作者: 黄晓辉 E-mail:hxh@ndnu.edu.cn
  • 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(2021ZDK08)

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 Materials in Biochemical Industry,Ningde Normal University,Ningde 352100,China
  • Received:2025-06-03 Online:2025-10-10 Published:2025-08-01
  • Contact: HUANG Xiaohui E-mail:hxh@ndnu.edu.cn
  • Supported by:
    the Youth Project of 2021 Major Project Cultivation Plan of Ningde Normal University, China(2021ZDK08)

摘要:

以一种结构稳定的MOFs材料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, 膜材料的性能得到明显提高. 其中, 当MIL-101(Cr)与PAN的质量比增加至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双氯芬酸钠水溶液中双氯芬酸钠的去除效率可达95.59%, 而且经5次循环使用后, 去除效率仍保持在75%以上. 此外, 在含有与双氯芬酸钠等浓度(20 mg/L)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:

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(PAN). According to our investigations, the obtained MOF-based membranes displayed loose and porous structure with a membrane thickness of about 14 μm, and the performance of the membranes could be significantly improved with the increase of MOF content. Specifically, when the mass ratio of MIL-101(Cr) to PAN reached to 2∶5, the prepared membrane MIL-101@PAN-2 exhibited 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, and maintaining a removal efficiency above 75% even after 5 cycles. Furthermore, even in a mixed solution containing Na+, K+, and NH4+ at concentrations comparable to those of diclofenac sodium(20 mg/L), the membrane could still maintain a removal efficiency of over 90%.

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

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