Abstract Pure and silver (Ag) nanoparticle (0.5 wt%, 1 wt%, 2 wt%)-incorporated polysulphone/polyvinyl pyrrolidone (PSF/PVP) membranes have been prepared by phase inversion method. The effects of Ag nanoparticle incorporation on PSF/PVP polymer membrane have been studied by XRD, FE-SEM, AFM and contact angle measurement. The successful incorporation of Ag nanoparticle has been confirmed by XRD analysis. FE-SEM images showed that morphology varies with the variation in Ag concentration. The decrease in contact angle value proved that membrane surface is more hydrophilic in nature than pure PSF/PVP membrane. Enhanced mechanical and thermal behaviour has been observed by tensile test measurement and TGA, respectively. It has been also observed that permeability, salt rejection and antibacterial activity of the membrane were enhanced upon Ag incorporation in the PSF/PVP membrane. Among the Ag-incorporated membranes, 1 wt% Ag showed superior performance. The enhancement of membrane performance upon Ag incorporation has been well justified, and other features are discussed in detail. Graphical abstract

中文翻译：

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通过掺入银提高 PSF/PVP 聚合物膜的性能

摘要 通过相转化法制备了纯银 (Ag) 纳米颗粒 (0.5 wt%, 1 wt%, 2 wt%) 掺入的聚砜/聚乙烯吡咯烷酮 (PSF/PVP) 膜。已经通过XRD、FE-SEM、AFM和接触角测量研究了Ag纳米颗粒掺入对PSF/PVP聚合物膜的影响。XRD 分析证实了 Ag 纳米颗粒的成功掺入。FE-SEM 图像显示形态随 Ag 浓度的变化而变化。接触角值的减小证明膜表面本质上比纯 PSF/PVP 膜更具亲水性。通过拉伸测试测量和 TGA 分别观察到增强的机械和热行为。还观察到渗透性、在 PSF/PVP 膜中掺入 Ag 后，膜的盐截留率和抗菌活性增强。在掺入 Ag 的膜中，1 wt% Ag 表现出优异的性能。Ag 掺入后膜性能的增强已得到充分证明，并详细讨论了其他特征。图形概要