载银氧化锆纳米晶陶瓷微滤膜抗菌研究  

RESEARCH OF ANTIBAETERIAL WITH SILVER FOR CERAMIC MICROFILTRATION MEMBRANES OF NANO-CRYSTALLINE ZrO_2

作　　者：石纪军[1] 吴也凡[1] 周健儿[1] 何汝杰[1] 陈猛[1] 王家衡[2] 潘霞[1] 

机构地区：[1]景德镇陶瓷学院江西省高等学校无机膜重点实验室,景德镇333001 [2]深圳大学,深圳518060

出　　处：《陶瓷学报》2009年第4期481-485,共5页Journal of Ceramics

基　　金：江西省教育厅科学技术研究项目(编号:GJJ09268);江西省教育厅青年科学基金项目((编号:GJJ09539)资助

摘　　要：用约为20nm的四方相ZrO2纳米晶对陶瓷微滤膜进行通体修饰后,其平均孔径由3.20μm缩小为3.15μm。将广谱无机抗菌剂之一的银系附着在陶瓷微滤膜表面的ZrO2纳米晶涂层,银以岛状纳米晶沉积附着在四方相ZrO2上,含银纳米晶粒尺寸大小不一。以Ag进行掺杂改性后,改性粉体的润湿性变得更好,其中以Ag掺杂量为0.5mol%时,改性粉体的润湿性能为最好。以金黄色葡萄球菌为实验对象,研究了载银陶瓷微滤膜对金黄色葡萄球菌的杀伤效应,并初步探讨了对细胞的作用机理。Average pore size of ceramic microfiltration membranes reduced from 3.20μm to 3.15μm through modification entirely by tetragonal nano-crystalline ZrO2 about of 20 nm. The size of island nano-crystalline silver depositing on tetragonal ZrO2 was inhomogeneous as silver system of broad-spectrum inorganic antibacterial attached to nano-crystalline ZrO2 coating of ceramic microfiltration membranes surface. Powder modified by doping silver showed better wettability. Powder displayed best wettability with 0.5mol% silver. Using staphylococcus aureus as experimental object, the antibacterial efficacy of ceramic microfiltration membranes with silver on staphylococcus aureus has been studied, and the mechanism of action for cells was primarily explored.

关 键 词：陶瓷膜 纳米晶 抗菌 润湿性 

分 类 号：TQ174.75[化学工程—陶瓷工业]