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Synthesis of ZnO Nanoparticles by PNP and Its Application on the Functional Finishing of Cotton Fabrics

机译：PNP合成ZnO纳米粒子及其在棉织物功能整理中的应用

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摘要

This paper presents a facile and novel approach for the synthesis of ZnO nanoparticles in aqueous solution based on a one-step reaction between a modified hyperbranched polymer (PNP) and zinc nitrate. The prepared ZnO nanoparticles polymeric hybrid was characterized and its antibacterial activity was investigated. The results indicated that the ZnO nanoparticles have an average size about 6 nm and well dispersed in aqueous medium. The minimum inhibitory concentration (MIC) of them was 20 ppm and 60 ppm against S. aureus and E. coli, respectively. For the functional finishing of cotton fabrics by these ZnO nanoparticles, a microwave assisted in situ fabrication method was employed. Scanning electron microscope (SEM), energy dispersive X-ray (EDX) spectroscopy and X-ray diffraction (XRD) measurements confirmed that the ZnO nanoparticles in situ generated in cotton fabrics successfully. Fourier transform infrared (FT-IR) spectroscopic investigation demonstrated that the ZnO nanoparticles were fixed on the cotton fibers by PNP. The treated cotton fabrics exhibited excellent UV protective properties and antibacterial activities. When ZnO content of cotton fabric was 1.49 %, the UPF value of treated cotton fabric exceeded 125 and the bacterial reduction rate against S. aureus and E. coli reached 99.97 % and 98.40 %, respectively.
机译：本文基于改性超支化聚合物（PNP）与硝酸锌之间的一步反应，提出了一种简便，新颖的水溶液中ZnO纳米粒子合成方法。表征了所制备的ZnO纳米颗粒聚合物杂化物并研究了其抗菌活性。结果表明，ZnO纳米颗粒的平均尺寸为约6nm，并且很好地分散在水性介质中。它们对金黄色葡萄球菌和大肠杆菌的最小抑制浓度（MIC）分别为20 ppm和60 ppm。为了通过这些ZnO纳米粒子对棉织物进行功能性整理，采用了微波辅助原位制造方法。扫描电子显微镜（SEM），能量色散X射线（EDX）光谱和X射线衍射（XRD）测量证实，ZnO纳米颗粒可在棉织物中原位成功生成。傅里叶变换红外（FT-IR）光谱研究表明ZnO纳米颗粒通过PNP固定在棉纤维上。经处理的棉织物具有出色的紫外线防护性能和抗菌活性。当棉织物的ZnO含量为1.49％时，处理后的棉织物的UPF值超过125，对金黄色葡萄球菌和大肠杆菌的细菌减少率分别达到99.97％和98.40％。

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