首页|Amine-functionalized metal organic framework@graphene oxide as filler in PAEK-containing carboxyl group membrane for ultrafiltration with ultra-high permeability and strong fouling resistance

Amine-functionalized metal organic framework@graphene oxide as filler in PAEK-containing carboxyl group membrane for ultrafiltration with ultra-high permeability and strong fouling resistance

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Achieving high fouling resistance and permeability using membrane separation technology in water treatment processes remains a challenge. In this work, a novel mixed-matrix membrane (MMM) (pol-y(arylene ether ketone) [PAEK]-containing carboxyl groups [PAEK-COOH]/UiO-66-NH2@graphene oxide [GO]) with superb fouling resistance and high permeability was prepared by the nonsolvent-induced phase separation method, by in-situ growth of UiO-66-NH2 on the GO layer, and by preparing hydrophilic PAEK-COOH. On the basis of the structure and performance analysis of the MMM, the maximum water flux reached 591.25 L·m-2·h-1 for PAEK-COOH/UiO-66-NH2@GO, whereas the retention rate for bovine serum albumin increased from 85.40％to 94.87％. As the loading gradually increased, the hydrophilicity of the MMMs increased, significantly enhancing their fouling resistance. The strongest anti-fouling ability observed was 94.74％, which was 2.02 times greater than that of the pure membrane. At the same time, the MMMs contained internal amide and hydrogen bonds during the preparation process, forming a cross-linked structure, which further enhanced the mechanical strength and chemical stability. In summary, the MMMs with high retention rate, strong permeability, and anti-fouling ability were suc-cessfully prepared.

Poly(arylene ether ketone)-containingCarboxyl groups (PAEK-COOH)UiO-66-NH2@graphene oxideHydrophilic modificationUltra-high selectivityStrong anti-fouling

Zhaoli Wang、Wenjing Li、Yi Zhang、Yanyin Cheng、Junjian Yu、Tianming Dong、Xiaoyu Chi、Di Liu、Zhe Wang

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School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, China

Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China

Key Laboratory of Advanced Functional Polymer Membrane Materials of Jilin Province, Changchun 130012, China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaJilin Provincial Science&Technology DepartmentChang Bai Mountain Scholars Program of Jilin Province

2207503151673030516030175180301120220201105GX

2024

10.1016/j.cjche.2024.03.004

中国化学工程学报(英文版)
中国化工学会

中国化学工程学报(英文版)

CSTPCDEI
影响因子：0.818
ISSN：1004-9541
年,卷(期)：2024.70(6)