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研究了以纳米ZnO为载体的银系无机抗菌材料的制备工艺及其抗菌性能。实验结果表明,Ag的掺杂有效地提高了样品的抗菌性能,对金黄色葡萄球菌和大肠埃希氏菌的最小抑菌浓度(MIC)均为75mg.L-1。采用XRD和XPS等测试技术对样品进行表征。为了克服由于Ag存在产生的变色问题,采用在复合试样表面包覆一层月桂酸钠来进行表面改性并测量色差和亲油化度。改性后的粉体色差为0.88,亲油化度为54.5%。
The preparation and antibacterial properties of silver-based inorganic antibacterial materials supported on nano-ZnO were studied. The experimental results show that Ag doping effectively improves the antibacterial activity of the sample, and the minimum inhibitory concentration (MIC) against Staphylococcus aureus and Escherichia coli is 75 mg.L-1. The samples were characterized by XRD and XPS. In order to overcome the discoloration problem caused by the presence of Ag, the surface of the composite sample was coated with sodium laurate to modify the surface and measure the color difference and lipophilicity. The modified powder has a color difference of 0.88 and a degree of lipophilicity of 54.5%.