摘要
利用改进的溶剂挥发诱导自组装法(EISA)制备高比表面积介孔CeO2,通过改进的乙二醇还原法,在得到的介孔CeO2中负载上不同量的银。采用粉末X射线衍射(XRD)、透射电子显微镜(TEM)、能谱仪(EDS),N2吸附-脱附法方法对产物进行表征。由BJH方程计算得到材料的孔径分布,以BET法计算材料的比表面积。研究负载不同比例银纳米粒子的介孔CeO2的结构及其抗菌活性。实验表明所制备的新材料具有很好的抗菌性能。
Mesoporous CeO2 with high specific surface area was synthesized using a modified evaporation-induced self-assembly （EISA） method, and a series of different amounts of Ag were loaded to this mesoporous CeO2 by a modified ethylene glycol reduction route. The samples were characterized by powder X-ray diffraction （XRD）, transmission electron microscopy （TEM）, energy-dispersive spectrometry （EDS）, nitrogen adsorption-desorption, Brunauer-Emmett-Teller （BET） and Barrett-Joyner- Halenda （BJH） methods. The mesoporous CeO2 structure with different proportions of silver nanoparticles and its antibacterial activity were adequately studied, confinnin~ that obtained novel materials show a good antibacterial effect.
基金
Projects (21071107, 51002016) supported by the National Natural Science Foundation of China
Project (JQ201003) supported by Changzhou University Fund for Young Talent,China
关键词
CEO2
介孔
银纳米颗粒
抗菌活性
CeO2
mesoporous
silver nanoparticle
antibacterial activity
