In situ synthesis of silver nanoparticles on alkali-treated cotton fabrics
In situ synthesis of silver nanoparticles on alkali-treated cotton fabrics
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DOI：
10.1177/1528083712444297
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发表时间：
2013-04-01
影响因子：
3.2
通讯作者：
Shateri-Khalilabad, Mohammad
中科院分区：
文献类型：
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作者：
Yazdanshenas, Mohammad E.;Shateri-Khalilabad, Mohammad
棉织物用不同浓度的氢氧化钠碱处理，以研究碱处理对银纳米颗粒形成的影响。将碱处理过的织物浸入硝酸银溶液中，然后进行化学还原，在织物表面原位形成银纳米颗粒。采用扫描电镜、X射线能谱仪、X射线衍射仪对织物进行了表征，并进行了抗菌测试。此外，颜色变化，抗菌耐久性，和织物的机械性能进行了评估。证明了碱预处理对负载和稳定银纳米粒子的显著影响。在较高氢氧化钠浓度下处理的织物具有较高的银含量。银纳米颗粒均匀分布在纤维上，具有高表面覆盖率。经处理的织物对大肠杆菌和金黄色葡萄球菌表现出很强的抗菌活性，即使在10次洗涤循环后也是如此。该方法简便、经济、通用，为生产高银含量的棉纺织品提供了一条简单的途径。
Cotton fabrics were alkali-treated with sodium hydroxide at different concentrations in the range from 1 M to 6 M in order to investigate the effect of alkali treatment on the formation of silver nanoparticles. Alkali-treated fabrics were dipped into the silver nitrate solution followed by chemical reduction, which caused in situ formation of silver nanoparticles on the surface of fabrics. As-prepared fabrics were characterized by scanning electron microscope, energy-dispersive X-ray spectroscopy, and X-ray diffraction analysis and also antimicrobial test was carried out. In addition, the color variation, antibacterial durability, and mechanical properties of the fabrics were assessed. The considerable effect of alkali pre-treatment on loading and stabilizing silver nanoparticles was demonstrated. Fabrics treated at higher sodium hydroxide concentrations have higher silver content. Silver nanoparticles are homogeneous and evenly distributed on fibers with high surface coverage. Treated fabrics exhibit strong antibacterial activity against Escherichia coli and Staphylococcus aureus, even after 10 laundering cycles. This procedure is facile, cost-effective and versatile and provides a simple route to manufacturing of cotton textiles with high silver content.