Abstract
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.
基金项目
National Natural Science Foundation of China(22075031)
National Natural Science Foundation of China(51673030)
National Natural Science Foundation of China(51603017)
National Natural Science Foundation of China(51803011)
Jilin Provincial Science&Technology Department(20220201105GX)
Chang Bai Mountain Scholars Program of Jilin Province()
维普
万方数据