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首页> 外文期刊>Separation and Purification Technology >Preparation of a novel polyvinyl chloride (PVC) ultrafiltration membrane modified with Ag/TiO2 nanoparticle with enhanced hydrophilicity and antibacterial activities
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Preparation of a novel polyvinyl chloride (PVC) ultrafiltration membrane modified with Ag/TiO2 nanoparticle with enhanced hydrophilicity and antibacterial activities

机译：用增强的亲水性和抗菌活性用Ag / TiO2纳米粒子改性新型聚氯乙烯（PVC）超滤膜的制备

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摘要

Ag/TiO2 nanoparticles (NPs) were fabricated via a co-precipitation method and used to prepare a novel polyvinyl chloride (PVC) membrane, i.e. Ag/TiO2/PVC nanocomposite membrane. Effect of Ag/TiO2 adding on the membrane properties was examined. The EDX elemental mapping confirmed good dispersion of Ag/TiO2 NPs on the membrane surface. ATR-FTIR analysis certified existence of hydroxyl groups on the Ag/TiO2/PVC membrane surface. Furthermore, the values of the pure water flux (PWF) was enhanced from 41 L/m(2) h for bare EPVC membrane to 58.6 L/m(2) h for Ag/TiO2/PVC nanocomposite membrane containing 1 wt% Ag/TiO2. The antimicrobial behavior of Ag/TiO2/PVC membrane has been tested using Gram-negative bacteria: Pseudomonas aeruginosa (P. aeruginosa) and Escherichia coli (E. coli), and Staphylococcus aureus (S. aureus) Gram-positive bacteria, and inhibition of bacterial growth was observed. Better antifouling and antibacterial properties for the blended membranes were observed. It is hoped that our study will be used as a good method for modification of EPVC membrane in water treatment industry.
机译：通过共沉淀法制造Ag / TiO2纳米颗粒（NPS）并用于制备新型聚氯乙烯（PVC）膜，即Ag / TiO 2 / PVC纳米复合膜。检查Ag / TiO2加入膜特性的影响。 EDX元素映射证实了Ag / TiO2 NP在膜表面上的良好分散。 ATR-FTIR分析Ag / TiO2 / PVC膜表面上羟基的认证存在。此外，对于Ag / TiO 2 / PVC纳米复合膜的裸EPVC膜，从41L / m（2）小时，从41L / m（2）h增强，从41L / m（2）h增强为58.6L / m（2）小时，含有1wt％Ag / TiO2。 AG / TiO2 / PVC膜的抗微生物性能已经使用革兰氏阴性细菌进行测试：假单胞菌铜绿假单胞菌（P. Aerginosa）和大肠杆菌（大肠杆菌），和金黄色葡萄球菌（Aureus）革兰氏阳性细菌和抑制作用观察到细菌生长。观察到混合膜的更好的防污和抗菌性质。希望我们的研究将被用作水处理行业EPVC膜改变的好方法。

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