期刊
JOURNAL OF MEMBRANE SCIENCE
卷 602, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.memsci.2020.117956
关键词
Core-shell nanoparticles; Thin film nanocomposite membrane; Anti-biofouling; Anti-bacterial
资金
- National Key R&D Program of China [2019YFD1100100]
- Science and Technology Development Plan of Jilin Province [20180520170JH]
- Thirteenth Five-Year Program for Science and Technology of Education Department of Jilin Province [JJKH20181141KJ]
In this study, Ag@ZnO-Oleic acid (OAc)/polyamide (PA) thin film nanocomposite (TFN) membranes were prepared by interfacial polymerization with dispersing hydrophobic Ag@ZnO-OAc core-shell nanoparticles in trimesoyl chloride (TMC) solutions. The Ag@ZnO-OAc nanoparticle structure and interactions between OAc and TMC were confirmed by TEM, XPS and FTIR. Surface morphology, roughness, chemical composition, hydro-philicity and charges of the synthesized membranes were characterized by SEM, FTIR, contact angle and zeta potential analyses. The results showed that incorporating the Ag@ZnO-OAc nanoparticles into the PA layer improved chemical and physical properties of the TFN membranes. Compared with the nanoparticle-free TFC membrane, the Ag@ZnO-OAc/PA TFN membrane showed a considerably higher salt rejection, and a lower flux decline rate when tested with filtration of BSA solution as a model foulant and a higher flux recovery with water flush. In addition, the Ag@ZnO-OAc/PA TFN membrane showed excellent antibacterial performance against E. Coli and S. aureus.
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