期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 496, 期 -, 页码 391-400出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2017.01.054
关键词
Ultrafiltration membrane; Cardo poly(aryl ether ketone); N-chloramine; Anti-bacterial; Recyclable
资金
- National Basic Research Program of China [2012CB932802, 2015CB655302]
- National Science Foundation of China [51473163, 51321062, 51133008]
- Chinese Academy of Sciences-Wego Group High-tech Research & Development Program [ZKYWG2013-02]
- Scientific Development Program of Jilin Province [20160519006JH]
In this study, a cardo poly(aryl ether ketone) ultrafiltration membrane containing an N-chloramine functional group (PER-N-C1 membrane) was easily obtained via exposure of a cardo poly(aryl ether ketone) ultrafiltration membrane (PER-NH membrane) to dilute sodium hypochlorite solution. The chlorination process did not harm membrane performance. In addition, the PER-N-C1 membrane was stable in both air and water. The PER-N-CI membrane exhibited excellent antimicrobial properties against both Gram-negative and Gram-positive bacteria (i.e. E. coli and Bacillus subtilis, respectively). The PEK-N-Cl membrane provided 94.2% and 100% reduction of E. coli and Bacillus subtilis, respectively, within 30 min of contact times. Moreover, nearly 100% of the E. coli was killed after 2 h during the filtration process for the PEK-N-Cl membrane. In addition, the water flux decreased by 42% for the PEK-N-Cl membrane compared to 77.6% for the PER -NH membrane after filtration of the E. coli solution and incubation on LB nutrient agar plate, indicating that the PEK-N-C1 membrane enhibits antifouling. Furthermore, the PEK-N-C1 membrane is recyclable via subsequent exposure to a sodium hypochlorite solution.(C) 2017 Elsevier Inc. All rights reserved.
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