title: Preparation and characterization of an antibacterial ultrafiltration membrane with N-chloramine functional groups.
abstract: In this study, a cardo poly(aryl ether ketone) ultrafiltration membrane containing an N-chloramine functional group (PEK-N-Cl membrane) was easily obtained via exposure of a cardo poly(aryl ether ketone) ultrafiltration membrane (PEK-NH membrane) to dilute sodium hypochlorite solution. The chlorination process did not harm membrane performance. In addition, the PEK-N-Cl membrane was stable in both air and water. The PEK-N-Cl 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 30min of contact times. Moreover, nearly 100% of the E. coli was killed after 2h 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 PEK-NH membrane after filtration of the E. coli solution and incubation on LB nutrient agar plate, indicating that the PEK-N-Cl membrane enhibits antifouling. Furthermore, the PEK-N-Cl membrane is recyclable via subsequent exposure to a sodium hypochlorite solution.
authors.affiliation: Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China; Department of Chemistry, Liaoning Key Laboratory for the Synthesis and Application of Functional Compounds, Bohai University, Jinzhou 120013, China.
authors.forename: Shuhua
authors.initials: S
authors.lastname: Hou
authors.affiliation: Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China.
authors.forename: Xue
authors.initials: X
authors.lastname: Dong
authors.affiliation: Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China.
authors.forename: Jianhua
authors.initials: J
authors.lastname: Zhu
authors.affiliation: Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China.
authors.forename: Jifu
authors.initials: J
authors.lastname: Zheng
authors.affiliation: Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China.
authors.forename: Weihui
authors.initials: W
authors.lastname: Bi
authors.affiliation: Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China.
authors.forename: Shenghai
authors.initials: S
authors.lastname: Li
authors.affiliation: Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), China. Electronic address: sbzhang@ciac.ac.cn.
authors.forename: Suobo
authors.initials: S
authors.lastname: Zhang
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology*; D001412:Bacillus subtilis / Q000187:drug effects* / Q000302:isolation & purification; D057219:Biofouling / Q000517:prevention & control*; D002700:Chloramines / Q000737:chemistry* / Q000494:pharmacology*; D004926:Escherichia coli / Q000187:drug effects* / Q000302:isolation & purification; D012973:Sodium Hypochlorite / Q000737:chemistry; D013997:Time Factors; D014462:Ultrafiltration / Q000295:instrumentation* / Q000379:methods
chemical_list: D000900:Anti-Bacterial Agents; D002700:Chloramines; D012973:Sodium Hypochlorite
keywords: Anti-bacterial; Cardo poly(aryl ether ketone); N-chloramine; Recyclable; Ultrafiltration membrane