一种光催化水泥砂浆的抗菌性能研究  

Study on antibacterial properties of a kind of photocatalytic cement mortar

作　　者：谭亚云[1] 

机构地区：[1]宁夏大学,宁夏银川750021

出　　处：《山西建筑》2015年第30期107-109,共3页Shanxi Architecture

基　　金：宁夏高等学校科研项目"光催化混凝土的制备及其抗菌性能研究"

摘　　要：选择大肠杆菌、金黄色葡萄球菌、白色念珠球菌作为试验用菌,在自然光照条件下,按照《纳米无机材料抗菌性能检测方法》,对一种粉末(纳米Ti O2机械混晶体)料浆法制备的光催化水泥砂浆和基准配合比水泥砂浆分别进行了抗菌试验,结果表明:基准配合比水泥砂浆没有抗菌效果;随接触时间延长,光催化水泥砂浆对大肠杆菌、金黄色葡萄球菌的抗菌率能达到95%以上,但对白色念珠球菌没有抗菌效果;机械混晶效应存在。Escherichia coli,staphylococcus aureus,candida albicans bacteria were used as test bacteria. Under natural light conditions,in accordance with the Antibacterial Properties of Nano Inorganic Material Test Method,the antibacterial test was done in the photocatalytic cement mortar and the reference cement mortar through nano-Ti O2 mechanical mixed crystals powder slurry method. Results showed that,the reference concrete had no antibacterial effect. With longer contact culture time,the antibacterial rate of photocatalytic cement mortar could reach more than95% for escherichia coli and staphylococcus aureus,but it had no antimicrobial effect for candida albicans bacteria,and the mechanical mixed crystal effect was existent.

关 键 词：水泥砂浆 光催化 纳米TiO2机械混晶体 

分 类 号：TU521[建筑科学—建筑技术科学]