载银多孔抗菌玻璃的研制

Preparation for Ag-carried porous antibacterial glass

采用Na2O-B2O3-SiO2系统玻璃制备了多孔玻璃,多孔玻璃的气孔率为30%左右,比表面积82-92m2/g,孔径3.4-4.6nm,采用离子导入法制备了多孔抗菌玻璃,研究了在多孔抗菌玻璃的制备过程中,多孔玻璃的孔隙率、溶液的温度、反应时间、溶液的pH值、Ag+的浓度对吸附的影响。制得了Ag+含量在30mg/g以上的多孔抗菌玻璃。经检测所制备的多孔抗菌玻璃对大肠杆菌菌种具有良好的抗菌性能。

Porous antibacterial glass is prepared by glass system of Na2O-SiO2-B2O3.Porosity of the product is about 30%,with 82-92 m2/g specific surface area and 3.4—4.6 nm apertures.The porous antibacterial glass is obtained by ion mediated.It is studied on porosity of the porous glass,solution temperature,reaction time,solution pH and the impaction of Ag＋ concentration on the absorption of antibacterial glass.After detection the porous glass has above 30mg/g Ag＋ content,and it has good antibacterial properties to E.coli.