石墨烯
膜
聚偏氟乙烯
生物污染
相位反转
超滤(肾)
氧化物
化学工程
材料科学
抗菌活性
盐(化学)
铵
化学
高分子化学
有机化学
色谱法
纳米技术
细菌
工程类
生物
生物化学
遗传学
作者
Haosong Liu,Xuyang Liu,Fangbo Zhao,Yang Liu,Lijia Liu,Lihong Wang,Chengbao Geng,Pei Huang
标识
DOI:10.1016/j.jcis.2019.12.017
摘要
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.
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