Preparation and Characterization of Cu-Ag-inorganic Antibacterial Material Containing Rare Earths
Inorganic antibacterial materials consist of the antibacterial ions, the additives and the carrier. In this study, we synthesized a new inorganic antibacterialmaterial, of which Cu<2+> and Ag<+> were selected to be the bi-component antibacterial ions, cerous nitrate served as the additives, and the white carbon black was chosen as the carrier, which was prepared by a sol-gel method. The as-synthesized antibacterial material was characterized by inductively coupled plasma, particle size measurement instrument, scanning electron microscope and enumeration tests. The result showed that the amount of antibacterial ions and bacteriostasis rate of this new material are higher than those for the single-ion inorganic antibacterial material. In addition, the particle size of this material can be extended down to 7 μm with a narrow size distribution. Other advantages of this material are its loose and dispersive structure, good thermal and light stability. From the antibacterial experiment in rubber and the coating surface of metal, this new material showed promising results. The possible antibacterial mechanism was also proposed through all the experimental data in this study.
inorganic antibacterial material white carbon black rare earths antibacterial mechanism application
Zhang Bin(张彬) Xie Gang(谢刚) Tang Xiaoning(唐晓宁) Wang Xiaonan(王晓楠)
Faculty of Science, Kunming University of Science and Technology, Kunming 650093, China Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Ku General Chemical Coking Technology Center, Angang Steel Company Limited, Anshan 114021, China
国际会议
第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)
包头
英文
175-181
2007-08-07（万方平台首次上网日期，不代表论文的发表时间）