期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 484, 期 -, 页码 107-115出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2016.08.063
关键词
GO-Ag composites; Polyvinylidene fluoride (PVDF); Antibacterial; Anti-biofouling
资金
- National Natural Science Foundation of China [21574033]
- Natural Science Foundation of Heilongjiang Province [E201252, LC201404]
- Project of Applicable Technology Research and Development of Harbin City [2013DB4BG010]
- Fundamental Research Funds for the Central Universities [HEUCF20161014]
To improve the anti-biofouling properties of PVDF membranes, GO-Ag composites were synthesized and used as membrane antibacterial agent by a simple and environmentally friendly method. As identified by XRD, TEM and FTIR analysis, AgNPs were uniformly assembled on the synthesized GO-Ag sheets. The membranes were prepared by phase inversion method with different additional amounts (0.00-0.15 wt%) of GO-Ag composites. The GO-Ag composites modified membranes show improved hydrophilicity, mechanical property and permeability than unmodified PVDF membrane. Specially, the antibacterial properties and inhibition of biofilm formation were greatly enhanced based on conventional inhibition zone test and anti-adhesion of bacterial experiment. The modified membranes also reveal a remarkable long-term continuous antimicrobial activity with slower release rate of Ag+ compared to AgNPs/PVDF membrane. (C) 2016 Elsevier Inc. All rights reserved.
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