Aminated polyethersulfone-silver nanoparticles (AgNPs-APES) composite membranes with controlled silver ion release for antibacterial and water treatment applications
Aminated polyethersulfone-silver nanoparticles (AgNPs-APES) composite membranes with controlled silver ion release for antibacterial and water treatment applications
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DOI：
10.1016/j.msec.2016.02.025
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发表时间：
2016-05-01
影响因子：
7.9
通讯作者：
Kim, Hee Taik
中科院分区：
文献类型：
--
作者：
Haider, M. Salman;Shao, Godlisten N.;Kim, Hee Taik
本研究报告了一系列银纳米粒子（AgNP）固定膜的抗菌消毒性能。首先，通过引入氨基使聚醚砜（PES）官能化以形成胺化聚醚砜（NH 2-PES，APES）。然后将AgNPs配位固定在APES复合膜表面，形成AgNPs-APES复合膜。采用FT-IR、XPS、XRD、TGA、ICP-OES和SEM-EDAX等分析手段对膜的性能进行了表征。这些结构表征表明，银纳米粒子的范围从5至40 nm的固定在聚合物膜的表面上。样品的抗菌测试表明，AgNPs-APES比AgNPs-PES非功能化膜表现出更高的活性。通常，AgNP-APES 1cm × 3cm条显示出比未官能化的AgNP聚合物膜长四倍的寿命。对所得样品的Ag+浸出性能的评价表明，即使在12天的操作之后，也可以保留约30%的AgNP。进一步的分析表明，银离子释放可持续约25天。本研究提供了一种系统的和新的方法来合成水处理膜与控制和改善银（Ag+）的释放，以提高膜的寿命。(C)2016爱思唯尔B. V.保留所有权利。
The present study reports the antibacterial disinfection properties of a series of silver nanoparticle (AgNP) immobilized membranes. Initially, polyethersulfone (PES) was functionalized through the introduction of amino groups to form aminated polyethersulfone (NH2-PES, APES). AgNPs were then coordinately immobilized on the surface of the APES composite membrane to form AgNPs-APES. The properties of the obtained membrane were examined by FT-IR, XPS, XRD, TGA, ICP-OES and SEM-EDAX analyses. These structural characterizations revealed that AgNPs ranging from 5 to 40 nm were immobilized on the surface of the polymer membrane. Antibacterial tests of the samples showed that the AgNPs-APES exhibited higher activity than the AgNPs-PES un-functionalized membrane. Generally, the AgNPs-APES 1 cm x 3 cm strip revealed a four times longer life than the un-functionalized AgNPs polymer membranes. The evaluation of the Ag+ leaching properties of the obtained samples indicated that approximately 30% of the AgNPs could be retained, even after 12 days of operation. Further analysis indicated that silver ion release can be sustained for approximately 25 days. The present study provides a systematic and novel approach to synthesize water treatment membranes with controlled and improved silver (Ag+) release to enhance the lifetime of the membranes. (C) 2016 Elsevier B.V. All rights reserved.