[1]李松哲,陈贵靖,李子喻,等.多壁碳纳米管改性PVDF中空纤维膜制备及膜污染行为[J].中国给水排水,2025,41(23):8-14.
　LISong-zhe,CHENGui-jing,LIZi-yu,et al.Preparation of Polyvinylidene Fluoride （PVDF） Hollow Fiber Membrane Modified by Multi-walled Carbon Nanotubes and Its Membrane Fouling Behavior[J].China Water & Wastewater,2025,41(23):8-14.
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多壁碳纳米管改性PVDF中空纤维膜制备及膜污染行为

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第23期 页码: 8-14 栏目: 出版日期: 2025-12-01
Title:
Preparation of Polyvinylidene Fluoride （PVDF） Hollow Fiber Membrane Modified by Multi-walled Carbon Nanotubes and Its Membrane Fouling Behavior
作者:
李松哲1， 陈贵靖2， 李子喻1， 王子成1， 张瑞刚1， 杨峥1， 刘百仓1,2
（1.四川大学 建筑与环境学院，四川 成都 610065；2.四川大学 灾后重建与管理学院，四川 成都 610207）
Author(s):
LI　Song-zhe1， CHEN　Gui-jing2， LI　Zi-yu1， WANG　Zi-cheng1， ZHANG　Rui-gang1， YANG　Zheng1， LIU　Bai-cang1，2
（1. College of Architecture and Environment， Sichuan University， Chengdu 610065， China； 2. Institute for Disaster Management and Reconstruction， Sichuan University， Chengdu 610207， China）
关键词:
聚偏氟乙烯膜;  多壁碳纳米管;  物化特性;  表面张力;  膜污染
Keywords:
PVDF membrane;  MWCNTs;  physicochemical properties;  surface tension;  membrane fouling
摘要:
采用非溶剂致相转化法制备了三种多壁碳纳米管改性聚偏氟乙烯（PVDF）中空纤维膜，探究了多壁碳纳米管（MWCNTs）、羧基化多壁碳纳米管（MWCNTs-COOH）和羟基化多壁碳纳米管（MWCNTs-OH）对其结构与性能的影响。结果表明，添加MWCNTs-COOH和MWCNTs-OH改变了PVDF膜表面的物化特性，增加了总表面张力，提高了亲水性。MWCNTs-COOH改性中空纤维膜的纯水通量是原膜的1.6倍，对腐殖酸（HA）和牛血清白蛋白（BSA）的截留率分别从97.5%和75.4%提高到98.0%和95.5%，HA的通量恢复率从82.7%提高到98.5%，而BSA的通量恢复率从91.5%降低到69.0%。同时，结合XDLVO理论解释了改性膜抗污染性能的差异性。
Abstract:
Polyvinylidene fluoride (PVDF) hollow fiber membranes modified with three types of multi-walled carbon nanotubes (MWCNTs) were prepared by non-solvent induced phase separation method. The effects of pristine MWCNTs, carbonylated MWCNTs (MWCNTs-COOH), and hydroxylated MWCNTs (MWCNTs-OH) on the structure and properties of the PVDF membranes were investigated. The results indicated that MWCNTs-COOH and MWCNTs-OH enhanced the surface hydrophilicity and total surface tension. The MWCNTs-COOH modified membrane exhibited a pure water flux 1.6 times that of the pristine membrane. The rejection of HA and BSA increased from 97.5% and 75.4% to 98.0% and 95.5%, respectively. The flux recovery rate for HA improved from 82.7% to 98.5%, whereas that for BSA decreased from 91.5% to 69.0%. The anti-fouling mechanisms were further elucidated using the XDLVO theory.

相似文献/References:

[1]陈亦洁,王琎,孟晓荣.Fe3O4/MWCNT改性纳滤膜对Mg2+/Li+的分离性能[J].中国给水排水,2024,40(21):81.
　CHENYi-jie,WANGJin,MENGXiao-rong.Performance of Fe3O4 /MWCNT Modified Nanofiltration Membranes for Separation of Mg2+ and Li+[J].China Water & Wastewater,2024,40(23):81.

更新日期/Last Update: 2025-12-01