麦饭石无机抗菌剂的制备及性能  

Preparation and properties of Maifanshi inorganic antibacterial agent

作　　者：籍凤秋[1] 任书霞[1] 王建雷[1] 

机构地区：[1]石家庄铁道学院材料科学与工程学院,河北石家庄050043

出　　处：《化工学报》2009年第S1期127-130,共4页CIESC Journal

基　　金：河北省教育厅资助项目(2007320)~~

摘　　要：以麦饭石为载体、Ag+和Zn2+为抗菌离子,通过液相离子交换反应,制备载银锌的麦饭石无机抗菌剂。采用抑菌率对所得产物的抗菌性进行检测,采用XRD、SEM对产物的结构与形貌进行表征,并采用缓释法对产物的耐久性进行研究。实验结果表明:在反应时间为4h,反应温度为60℃,Ag+和Zn2+浓度分别为0.1、2mol.L-1,pH值为8的条件下,制备的麦饭石抗菌剂具有优异抗菌性和耐久性。抗菌机理初步分析为通过离子交换或吸附进入麦饭石结构内的Ag+和Zn2+能从载体中持久缓慢地释放出来,与细菌细胞作用,杀灭细菌,从而保持该抗菌剂良好的抗菌能力。The inorganic antibacterial agents were prepared with Maifanshi containing Ag+ and Zn2+ by liquid ion exchanging reaction in this paper.The antibacterial activities of the as-prepared Maifanshi antibacterial agents were examined by Bacteriastasis ratio,and the microstructures of it were characterized by XRD and SEM,and the durability of it were studied by Sustained-release method.The results show that the excellent antibacterial activities and long durability of Maifanshi antibacterial agents have been obtained by the reaction of 0.1 mol·L-1 Ag+ and 2 mol·L-1 Zn2+ with Medical stone powers in the solution of pH 8 for 4 h at 60℃.The reasons for causing the above results are that silver and zinc ions entering the framework of Maifanshi through ion exchanging and adsorption can be released slowly to kill bacteria.

关 键 词：无机抗菌剂 麦饭石 抗菌性 抗菌机理 

分 类 号：TQ072[化学工程]