聚苯胺/氧化铜纳米复合材料的制备及抗菌性能

Synthesis and Antibacterial Action of Polyaniline/CuO Nanocomposites

通过水热法制得长2μm,直径100 nm^200 nm的氧化铜纳米棒,然后以此纳米棒采用原位聚合法得到了聚苯胺/氧化铜纳米复合材料。并用傅立叶红外光谱(FT-IR)、扫描电镜(SEM)、热重分析(TG)等测试方法对所得复合材料进行了表征。结果表明,聚苯胺对纳米氧化铜表面包覆,得到了棒状核壳结构的复合材料,当氧化铜添加质量从0.2 g到1.0g时,复合材料中纳米粒子的含量分别为2.40%,5.80%,7.70%,9.40%和10.27%。同时,抑菌实验表明,复合材料对大肠杆菌和金黄色葡萄球菌具有良好的抑制作用,随着氧化铜复合量的增加,复合材料的抑菌性能逐渐提高,其最大抑菌直径分别为18.9 cm和34.5cm。

Copper monoxide（CuO） nanorods of 100 nm^200 nm in diameter and 2 μm^3 μm in length were successfully synthesized using a hydrothermal reaction method in the presence of urea.Then PANI-CuO nanocomposites were prepared by in-situ polymerization.The products obatained were characterized by scanning electron microscope（SEM）,transmission electron microscope（TEM）,Fourier transform infrared spectrum（FT-IR）,X-ray diffraction（XRD） and thermogravimetry（TG） analysis techniques.The results indicate that polyaniline（PANI）-CuO nanocomposites are core-shell pattern.The amount of PANI in the nanocomposites is estimated by TGA results,when the mass of CuO nanorods increases from 0.2 gram to 1.0 gram the proportion of CuO in composites is 2.40%,5.80%,7.70%,9.40% and 10.27% respectively.Meanwhile,the antibacterial action of PANI-CuO nanocomposites increases with increasing ratio CuO nanorods.The maximal antibacterial diameter of colon bacillus samples and staphylococcus aureus samples is 18.9 cm and 34.5 cm respectively.