期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 562, 期 -, 页码 182-192出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2019.12.017
关键词
Quaternized graphene oxide; Membrane modification; Dual function; Antibacterial property
资金
- National Natural Science Foundation of China
- Beijing City, China [51979064]
- Natural Science Foundation of Heilongjiang Province
- Harbin City, China [LH2019E033]
- fundamental research funds for the central universities, Beijing City, China [3072019CFG1001, HEUCFG201837]
- science and technology cooperation funds of Zhaoyuan City, Zhaoyuan City, China [2017KRIZ009]
In order to improve the anti-biofouling performance of ultrafiltration membrane, quaternized graphene oxide (QGO) was synthesized as a membrane modifier by in-situ growth of quaternary ammonium salt on the graphene oxide surface. A hydrophilic and antibacterial dual functional membrane was prepared with this kind of modifiers by immersion phase inversion method. The modified membrane obviously exhibits enhanced hydrophilicity, antibacterial and mechanical properties than the unmodified Polyvinylidene fluoride (PVDF) membranes. At the same time, it is proved that graphene oxide, as a carrier of quaternary ammonium salt, can significantly reduce the loss of antibacterial substances from the membranes. (C) 2019 Elsevier Inc. All rights reserved.
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