化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (12) : 99-103.

新材料与新技术

生物纳米银/聚醚砜复合膜的制备及性能研究

张曼莹, 刘姿铔, 邬艳君

作者信息 +

Preparation and characterization of Bio-Ag⁰/PES nanocomposite membrane

Zhang Manying, Liu Ziya, Wu Yanjun

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文章历史 +

Received
2017-08-05
Issue Date	Revised Date
2019-01-07	2017-08-05

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摘要

采用生物还原法制备生物纳米银(Bio-Ag⁰),通过相转化法制备Bio-Ag⁰/聚醚砜(PES)复合膜。扫描电镜分析表明,Bio-Ag⁰可以均匀稳定地分散在PES基膜中。纳米银共混可以改善膜断面孔结构,在不影响蛋白质截留率的前提下提高复合膜的纯水通量。采用抑菌环、菌落计数及孔板生物膜培养法研究了Bio-Ag⁰/PES复合膜的抗污染性能。结果显示,Bio-Ag⁰不仅使纳米复合膜具备良好的抗菌性,而且能有效地抑制细菌在膜表面的粘附及生物膜的形成,显著提高膜材料的抗生物污染性能。

Abstract

Biogenic silver nanoparticles (Bio-Ag⁰) were synthesized via the bioreduction method.Bio-Ag⁰/PES nanocomposite membranes were prepared by blending different amounts of Bio-Ag⁰ to the PES dope solution using the phase-inversion process.SEM results demonstrated that Bio-Ag⁰ can well disperse on PES matrix without obvious aggregation.Bio-Ag⁰ incorporation slight improved the cross-section morphology of PES membrane,and improved the water permeability and also did not sacrifice the protein rejection capability of composite membranes.The anbiofouling property of Bio-Ag⁰/PES were tested by inhibition zone method,colony forming count method and the biofilm formation assay.Bio-Ag⁰/PES not only exhibited excellent anti-bacterial activity,but also prevented bacteria attachment on the membrane surface and decreased the biofilms formation.Bio-Ag⁰/PES were considered to be an effective strategy to significantly improve the anti-biofouling properties of membrane materials.

关键词

生物纳米银 / 纳米复合膜 / 抗菌性 / 抗生物污染 / 通量恢复率

Key words

biogenic nano silver / nanocomposite membrane / antibacterial / antibiofouling / flux recovery ratio

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生物纳米银/聚醚砜复合膜的制备及性能研究[J]. 化工新型材料, 2018, 46(12): 99-103 DOI:

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