Novel covalent organic framework/PVDF ultrafiltration membranes with antifouling and lead removal performance

被引：45

作者：

Xu, Wentao ^{[1
]}

Sun, Xuejiao ^{[1
]}

Huang, Mianli ^{[1
]}

Pan, Xiaoyang ^{[1
]}

Huang, Xiaoping ^{[1
]}

Zhuang, Huaqiang ^{[1
,2
]}

机构：

[1] Quanzhou Normal Univ, Coll Chem Engn & Mat Sci, 198 Donghai St, Quanzhou 362000, Peoples R China

[2] Ningde Normal Univ, Key Lab Green Energy & Environm Catalysis, Ningde 352100, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL MANAGEMENT | 2020年 / 269卷

关键词：

Ultrafiltration membrane; Covalent organic framework; Antifouling; Pb2+-containing water; HOLLOW-FIBER MEMBRANES; EFFICIENT REMOVAL; AQUEOUS-SOLUTION; ADSORPTIVE REMOVAL; WASTE-WATER; PB(II); PB2+; NANOCOMPOSITES; TRIAZINE; METALS;

D O I：

10.1016/j.jenvman.2020.110758

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Membrane separation technology is recognized as a competitive approach to remove Pb2+ from water system due to its high efficiency and low operating cost. In present study, a simple and facile approach was developed to fabricate covalent organic framework (COF) modified PVDF ultrafiltration membranes with comprehensive antifouling property and superior Pb2+ removal ability. Herein, COF was synthesised in a homogenous PVDF/DMAc solution to fabricate hydrophilic COF modified PVDF ultrafiltration membranes with the Pb2+ removal property. The filtration test demonstrated that the COF modified PVDF ultrafiltration membranes exhibited excellent antifouling property and high water flux. Moreover, the membranes showed remarkable potential for treating Pb2+-containing water. The removal efficiency was determined at 92.4%, and its removal efficiency was 87.5% at the fourth treatment cycle with Pb2+-containing water. The present work provides a valuable platform for further development of efficient composite membranes for the treatment of Pb2+-containing water.

引用

页数：7

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