|本期目录/Table of Contents|

[1]汪文华,雷彩虹,余媛,等.基于Zn 2+与Mo 6+共掺杂TiO2复合粒子的抗菌PVDF平板膜制备及其性能分析[J].浙江理工大学学报,2022,47-48(自科四):524-532.
 WANG Wenhua,LEI Caihong,YU Yuan,et al.Preparation of antibacterial PVDF flat membrane based on Zn 2+与Mo 6+ codoped TiO2 composite particles and its property analysis[J].Journal of Zhejiang Sci-Tech University,2022,47-48(自科四):524-532.
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基于Zn 2+与Mo 6+共掺杂TiO2复合粒子的抗菌PVDF平板膜制备及其性能分析()
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浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
第47-48卷
期数:
2022年自科第四期
页码:
524-532
栏目:
出版日期:
2022-09-30

文章信息/Info

Title:
Preparation of antibacterial PVDF flat membrane based on Zn 2+与Mo 6+ codoped TiO2 composite particles and its property analysis
文章编号:
1673-3851 (2022) 07-0524-09
作者:
汪文华雷彩虹 余媛朱海霖
浙江理工大学,a.材料科学与工程学院;b.纺织科学与工程学院(国际丝绸学院),杭州 310018
Author(s):
WANG Wenhua LEI Caihong YU Yuan ZHU Hailin
a. School of Materials Science & Engineering; b. College of Textile and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, China
关键词:
PVDF平板膜抗菌TiZn 2+与Mo 6+溶胶凝胶法共掺杂亲水性
分类号:
TQ027-3
文献标志码:
A
摘要:
为获得具有优异抗菌性能的聚偏氟乙烯(Polyvinylidene fluoride,PVDF)膜,以锌离子(Zn 2+)与钼离子(Mo 6+ )共掺杂二氧化钛(TiO 2)复合粒子为添加物,通过非溶剂致相分离法制备改性PVDF平板膜;采用FESEM、XRD、平板计数等技术分析Zn 2+ 与Mo 6+ 共掺杂TiO 2复合粒子的形貌、物相结构和抗菌性,探究复合粒子添加量对改性PVDF平板膜形貌、机械性能、纯水通量和抗菌性能的影响。结果表明:制备的Zn 2+ 与Mo 6+ 共掺杂TiO 2复合粒子尺寸为100~350 nm,保留了纯TiO 2粒子锐钛矿型的晶型结构,且相较纯TiO 2粒子和Zn 2+ 掺杂TiO 2复合粒子抗菌性明显提升;复合粒子的添加量会显著影响改性PVDF平板膜的各项性能,当添加量为2.0%(以质量分数计)时可制备得到性能优异的改性PVDF平板膜;与不添加复合粒子制备得到的纯PVDF平板膜相比,最优添加量下制备所得改性PVDF平板膜呈现出较多均匀的蜂窝状大孔,孔隙率高达80.4%,机械强度提升了28.9%,水接触角由97.4°降低到53.5°,纯水通量由292.3 L/(m 2·h)提高到490.1 L/(m 2·h)。此外,当共培养时间为15 h时,最优添加量下制备所得改性PVDF平板膜对金黄色葡萄球菌和大肠杆菌的抑菌率可达100%。该结果为抗菌性PVDF分离膜的制备提供了理论基础。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2022-01-06
网络出版日期:2022-03-18
基金项目:国家自然科学基金项目(21706238);浙江省自然科学基金项目(GF19B060011)
作者简介:汪文华(1997-),女,安徽安庆人,硕士研究生,主要从事PVDF膜抗菌改性应用的研究
通信作者:朱海霖:zhhailin@163.com
更新日期/Last Update: 2022-09-06