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AgNPs@ZIF‐8 Hybrid Material‐Modified Polyethersulfone Microfiltration Membranes for Antibiofouling Property and Permeability Improvement
Author(s) -
Feng Yue,
Guo Ning,
Ren Shaojie,
Xie Xuan,
Xu Juan,
Wang Yunkun
Publication year - 2021
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.202000417
Subject(s) - biofouling , membrane , microfiltration , fouling , hydrophilization , chemical engineering , materials science , membrane fouling , surface modification , silver nanoparticle , permeability (electromagnetism) , chemistry , nanoparticle , nanotechnology , composite material , biochemistry , engineering
Membrane fouling is a major hindrance to the effective application of polyethersulfone (PES) membranes. Synthetic silver nanoparticles @ zeolitic imidazolate framework‐8 (AgNPs@ZIF‐8) hybrid crystals were used to modify the PES microfiltration membranes for mitigating membrane fouling and better water permeability. The surface modification of AgNPs@ZIF‐8 hybrid crystals improved the antifouling property of the membranes. The number of live bacteria in the bacteria suspension was over 90 % less than that of control membranes. Furthermore, after surface modification, the membrane permeability was enhanced, which was due to increased surface hydrophilization of the membranes which could partly explain the improved antifouling property. The results demonstrate that the use of AgNPs@ZIF‐8 hybrid crystals is a feasible and attractive approach for the development of antifouling membranes.