文献类型：期刊文献

中文题名：热处理对载银抗菌二氧化硅多孔材料结构和性能的影响

英文题名：EFFECTS OF HEAT TREATMENT ON STRUCTURE AND PROPERTIES OF ANTIBACTERIAL POROUS MATERIALS OF SILVER-CARRYING SILICA

作者：刘海荣[1];陈奇[1]

机构：[1]华东理工大学无机材料系,上海200237

年份：2005

卷号：33

期号：4

起止页码：438

中文期刊名：硅酸盐学报

外文期刊名：Journal of The Chinese Ceramic Society

收录：CSTPCD;;EI(收录号：2005229136907);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：上海市科委(0252NM006)资助项目。

语种：中文

中文关键词：含银块材;抗菌性;溶胶-凝胶法;多孔二氧化硅;有机-无机杂化

外文关键词：Escherichia coli;Heat treatment;Porous materials;Silver;Sol;gels;Ultraviolet spectroscopy

摘要：用有机无机杂化工艺制备载银抗菌二氧化硅多孔块体材料。考察热处理制度对抗菌块体的制备及结构、银价态、银离子释放速度、抗菌性能的影响。600 ℃热处理的抗菌块体紫外可见吸收光谱表明:SiO2载体中富含银离子,并且此抗菌块体在水中能保持较长期(14 d)的稳定溶出。抗菌实验显示此材料对大肠杆菌有良好的抑菌、杀菌作用。
Antibacterial porous materials of Ag-carrying SiO2 were prepared through an organic-inorganic hybridizing process. Heat treatment on the preparation, structure, electrovalence of silver, releasing speed of Ag ions and antibacterial property of obtained blocks were investigated. A ultraviolet-visible spectrum of Ag-carrying material treated at 600°C indicates that there are plenty of Ag ions in Ag-carrying SiO2. The Ag ions can be released stably into water of 30°C for 14 d. Antibacterial experiment shows that such materials treated at 600°C can effectively restrain of Escherichia coli.