| Ag-SiO2复合纳米颗粒的合成、表征及抗菌性研究 |
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| 引用本文： | 王新,薛建跃,万新军,刘孝恒.Ag-SiO2复合纳米颗粒的合成、表征及抗菌性研究[J].巢湖学院学报,2013(3):66-73. |
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| 作者姓名： | 王新 薛建跃 万新军 刘孝恒 |
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| 作者单位： | 1. 巢湖学院化学化工与生命科学学院,安徽 巢湖,238000
2. 南京理工大学软化学与功能材料教育部重点实验室,江苏 南京,210094 |
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| 基金项目： | 安徽省教育厅自然科学研究项目(项目编号KJ2013B161)；江苏省自然科学基金重大专项 |
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| 摘 要： | 使用自组装法制备得到SiO2颗粒,测试得到其平均孔径约为3.61nm,此孔径大小与模板十六烷基三甲基溴化铵（CTAB）的分子层间距有关。将自组装得到的SiO2颗粒依次浸泡于硝酸银（AgNO3）溶液和硫代硫酸钠（Na2S2O3）溶液中,反应后光照此混合液得到复合材料Ag-SiO2。此复合材料的微观结构可通过X-射线衍射（XRD）、扫描电镜（SEM）、透射电镜（TEM）、紫外-可见光谱（UV-Vis）及红外光谱（FT-IR）来表征,产物为球状复合颗粒,其中Ag纳米粒子被均匀的锁定于SiO2颗粒中,避免了Ag粒子的聚集。在抗菌性测试中发现此复合颗粒的抗菌性优于单一纳米Ag,文中还讨论了此类抗菌剂的作用机理。
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| 关 键 词： | 自组装 Ag-SiO2 抗菌性 |
RESEARCH ON SYNTHESIS, CHARACTERIZATION AND ANTIBACTERIAL PERFORMANCE OF Ag-SiO2 COMPOSITE NANOPARTICLES |
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| WANG Xin
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XUE Jian-yue
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WAN Xin-jun
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LIU Xiao-heng.RESEARCH ON SYNTHESIS, CHARACTERIZATION AND ANTIBACTERIAL PERFORMANCE OF Ag-SiO2 COMPOSITE NANOPARTICLES[J].Chaohu College Journal,2013(3):66-73. |
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| Authors: | WANG Xin XUE Jian-yue WAN Xin-jun LIU Xiao-heng |
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| Institution: | 1 Chemistry ﹠Chemical Engineering and Biology Science College,Chaohu College,Chaohu Anhui 238000)(2 Key Laboratory of Soft Chemistry and Functional Materials of the Ministry of Education,Nanjing University of Science and Technology,Nanjing Jiangsu 210094) |
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| Abstract: | In this paper,SiO2 nanoparticles are synthesized using self-assembly for their fabrication.These pores in the particles with an average diameter about 3.61nm are observed,which are considered to result from the intercalation of cetyltrimethylammonium bromide（CTAB） molecular dimers.The microstructure of this nanoparticles is characterized by X-ray diffraction（XRD）,ultraviolet visible spectrum（UV-Vis）,fourier-transform infrared spectra（FT-IR）,scanning electron microscope（SEM） and transmission electron microscope（TEM）.The SiO2 particles are soaked into silver nitrate（AgNO3） aqueous solution and sodium thiosulfate（Na2S2O3） solution with fully exposed.Results show that the sphereical Ag-SiO2 composite nanoparticles can be obtained.Ag nanoparticles are anchored homogeneously and tightly onto the silica coat of SiO2 magnetic nanoparticles,which can increase the antibacterial abilities by avoiding the aggregation of Ag nanoparticles.The action mechanism has also been discussed of the antiseptic. |
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| Keywords: | self-assembled Ag-SiO2 antibacterial |
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