银纳米线石墨烯复合材料制备及其抑菌能力研究  

Preparation of Silver Nanowires/Grapheme and Its Antibacterial Ability

作　　者：郑典元[1] 孙成祥 ZHENG Dianyuan;SUN Chengxiang(School of Marine Port,Lianyungang Normal College,Lianyungang 222006,China)

机构地区：[1]连云港师范高等专科学校海洋港口学院,江苏连云港222006

出　　处：《连云港师范高等专科学校学报》2018年第4期101-104,共4页Journal of Lianyungang Normal College

基　　金：连云港市科技项目"生物电化学系统与人工湿地燃料电池耦合处理含氯含硝基芳烃类废水关键技术应用研究"(项目编号:SH1607)

摘　　要：以聚乙烯基吡咯烷酮、乙二醇、氯化钠、硝酸银、石墨烯等为原材料,采用水浴法合成银纳米线石墨烯复合材料。用扫描电镜、X射线能谱对银纳米线石墨烯复合材料进行表征,以大肠杆菌为实验对象对复合材料的抗菌性能进行研究。结果表明:获得的银纳米线长为3-10μm,线宽为50-100 nm,纳米线负载在石墨烯上,分布均匀,该材料具有高比表面积与吸附能力,同时石墨烯与银的高导电性使其表现出较好的抑菌能力,复合材料的浓度在3 mg·mL-1时能稳定地抑制大肠杆菌的生长,有利于保持饮用水质量的稳定。同时,该复合材料性能稳定,且极易与水分离,能避免在水中残留,防止饮用水的二次污染。Silver nanowires graphene composites were synthesized through water bath with polyvinyl pyrrolidone(PVP),ethylene glycol(EG),sodium chloride(NaCl),silver nitrate(AgNO3)and graphene as raw materials.The as prepared composites is characterized using scanning electron microscopy(SEM)and X ray spectroscopy(EDS).The antibacterial response to escherichia coli is also carried out.The results show that the silver nanowires are 3-10μm in length and 50-100 nm in width.The nanowires are uniformly distributed on graphene,and the material has high specific surface area and adsorption ability.At the same time,the high conductivity of graphene and silver made them exhibit better bacteriostatic ability.The concentration of the composite showed a stable inhibition of the growth of Escherichia coli at the concentration of 3 mg*mL^-1,which was conducive to maintaining the stability of drinking water quality.At the same time,the composite has stable properties and is easy to be separated from water,which can avoid water residue and prevent secondary contamination of drinking water.

关 键 词：银纳米线 石墨烯 复合材料 抑菌圈 

分 类 号：TB383[一般工业技术—材料科学与工程] TB33