摘要
以聚乙二醇为还原剂通过水热反应,还原氧化石墨烯同时在石墨烯表面原位生长银纳米粒子,制备纳米银@石墨烯复合材料。采用紫外-可见吸收光谱、X射线衍射、红外吸收光谱、透射电子显微镜对所制备的纳米银@石墨烯复合材料进行了表征。结果表明,银以单质形态成功负载在石墨烯表面,银纳米粒子的平均粒径为30nm。以大肠杆菌为模型对纳米复合材料的抑菌性能进行测试,纳米银@石墨烯复合材料在100 mg/L时可以完全抑制大肠杆菌的生长,是一种效果显著的新型抑菌材料。
Ag@ graphene nano-composite was prepared by one step in situ synthetic method, using polyethylene glycol as reductant. Graphene oxide and silver ions were reduced at the same time through hydrothermal reaction. UV-vis spectroscopy, X-ray diffraction （XRD）, fourier transform infrared spectroscopy（FTIR） and transmission electron microscope（TEM） were used to characterize the as- prepared nano-composite. The resuhs of characterization indicate that the silver nanoparticles were uniformly anchored on the surface of graphene sheets and the average particle size was 30 nm. Its antibacterial activity was tested using E. coli as model strain. The minimal inhibitory concentration of Ag@ graphene against E. coil was 100 mg/L, suggesting that the composite is an outstanding and novel antibacterial material.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2012年第9期840-843,共4页
Fine Chemicals
基金
江苏省科学技术厅前瞻性研究计划(BY2012099)
常州市国际科技合作计划(CZ20110022)
江苏省青蓝工程项目~~
关键词
绿色合成
石墨烯
银纳米粒子
纳米复合材料
抑菌性能
功能材料
green synthesis
graphene
silver nanoparticles
nano-composite
antibacterial activity
functional materials
