载银介孔二氧化硅聚醚砜纳米复合膜的制备及其性能研究

肖世健1, 樊飞2, 陈琦2, 朱炳龙3, 张曼莹3*

化工新型材料 ›› 2025, Vol. 53 ›› Issue (7) : 115 -120.

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化工新型材料 ›› 2025, Vol. 53 ›› Issue (7) : 115-120. DOI: 10.19817/j.cnki.issn1006-3536.2025.07.010
新材料与新技术

载银介孔二氧化硅聚醚砜纳米复合膜的制备及其性能研究

    肖世健1, 樊飞2, 陈琦2, 朱炳龙3, 张曼莹3*
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Preparation and properties of m-SiO2/Ag/PES nanocomposite membranes

  • Xiao Shijian1, Fan Fei2, Chen Qi2, Zhu Binglong3, Zhang Manying3
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摘要

以载银介孔二氧化硅(m-SiO2/Ag)、聚醚砜(PES)、N,N-二甲基甲酰胺(DMF)为原料,采用湿法相转换法制备了载银介孔二氧化硅聚醚砜(m-SiO2/Ag/PES)纳米复合膜。通过接触角测试仪、扫描电子显微镜、死端过滤装置等对纳米复合膜的亲水性、形貌、过滤性能进行表征,研究了纳米复合膜对大肠杆菌和铜绿假单孢杆菌的抗菌性能。结果表明:在不显著降低截留率的条件下,m-SiO2/Ag可以有效提高膜通量;复合膜抗菌性能与m-SiO2/Ag含量成正比,m-SiO2/Ag的添加提高了复合膜的抗菌及抗污染性能。

Abstract

M-SiO2/Ag/PES nanocomposite membranes were prepared by wet phase conversion method using mesoporous titanium-supported silver (m-SiO2/Ag),polyethersulfone (PES) and dimethylformamide (DMF) as raw materials.The hydrophilicity,morphology and filtration performance of the nanocomposite membranes were characterized by contact angle tester,scanning electron microscope and dead-end filtration device.The antibacterial performance of the nanocomposite membranes against Escherichia coli and Pseudomonas aeruginosa was also studied.The results showed that the addition of m-SiO2/Ag could effectively increase the filtration flux of the membranes without significantly reducing the rejection rate.The antibacterial performance of the nanocomposite membranes was proportional to the m-SiO2/Ag content.The antibacterial and antifouling properties of the nanocomposite membranes were significantly improved by the doping of m-SiO2/Ag.

关键词

载银介孔二氧化硅 / 膜污染 / 纳米复合膜 / 抗污染

Key words

m-SiO2/Ag / membrane fouling / nanocomposite membrane / antifouling

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载银介孔二氧化硅聚醚砜纳米复合膜的制备及其性能研究[J]. 化工新型材料, 2025, 53(7): 115-120 DOI:10.19817/j.cnki.issn1006-3536.2025.07.010

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基金资助

常州市科技计划项目(CJ20220076)

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