引用本文:
吴旭明, 田晓乐, 谢敏敏, 甘树才, 孟健. 掺杂Ag纳米BaTiO3抑菌剂的制备及其性能[J]. 应用化学,
2006, 23(10): 1135-1139.
Citation: WU Xu-Ming, TIAN Xiao-Le, XIE Min-Min, GAN Shu-Cai, MENG Jian. Prepartion and Properties of Ag-doped Nano-BaTiO3 Antibacterial Agent[J]. Chinese Journal of Applied Chemistry, 2006, 23(10): 1135-1139.
Citation: WU Xu-Ming, TIAN Xiao-Le, XIE Min-Min, GAN Shu-Cai, MENG Jian. Prepartion and Properties of Ag-doped Nano-BaTiO3 Antibacterial Agent[J]. Chinese Journal of Applied Chemistry, 2006, 23(10): 1135-1139.
掺杂Ag纳米BaTiO3抑菌剂的制备及其性能
摘要:
以Ba(CH3COO)2、Ti(OC4H9)4和AgNO3为基本原料采用溶胶-凝胶法制备掺杂Ag纳米BaTiO3粉末,研究了溶胶的pH值、微粉烧结温度、烧结时间和掺Ag+量对其结构与性能的影响,分析了其结构、形貌和抑菌性能。XRD、SEM和粒度分析等测试方法对粉末进行表征结果表明,溶胶pH值约为3.5,800℃烧结2 h是最佳制备条件。所得掺杂Ag纳米BaTiO3粉末具有良好的均匀性和分散性,仍能保持BaTiO3的立方晶系钙钛矿型结构。其粒径分布在40~100 nm范围内,平均粒径为65 nm。采用杯碟法对其抑菌性能进行测定,结果表明,对常见的金黄色葡萄球菌、大肠埃希氏菌和铜绿假单孢菌均具有明显的抑菌作用,抑菌圈直径分别为20.0、19.5和15.7 mm,。
English
Prepartion and Properties of Ag-doped Nano-BaTiO3 Antibacterial Agent
Abstract:
Ag-doped nano-BaTiO3 powder was prepared by Sol-gel method from Ba(CH3COO)2,Ti(OC4H9)4 and AgNO3.The effects of pH value,calcining temperature and calcining time on the structure,morphology and antibacterial properties of Ag-doped nano-BaTiO3 were investigated.The microcrystallite was also characterized by XRD,SEM and particle analysis technique.The results show that optimized preparation condition should be pH=3.5,calcinated for 2 hours at temperature 800℃.Ag-doped nano-BaTiO3 powder has better uniformity and dispersibility prerovskite-type structure of cubic system.The particle analysis technique shows that particle diameter is the range of while preserving 40~100 nm and the mean particle diameters is around 65 nm.Ag-doped nano-BaTiO3 powder has distinctive antibacterial activities to Staphylocouus aureusand,Escherichia coi and Pseudomonas aeruginosa.The inhibition diameters are 20.0,19.5 and 15.7 mm respectively based cylinder plate assay.
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Key words:
- sol-gel
- / Ag-doped
- / BaTiO3
- / antibacterial activity
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