A型沸石抗菌剂的体外抑菌性能  

Antimicrobial Properties in Vitro of Type-A Zeolite Antibacterial Agent

作　　者：单展展[1] 王秀丽[1] 张小虎[2] 陈南春[2,3] 杨正坤[1] 刘芳[2] 

机构地区：[1]桂林理工大学化学与生物工程学院,广西桂林541004 [2]桂林理工大学材料科学与工程学院,广西桂林541004 [3]桂林理工大学有色金属及材料加工新技术教育部重点实验室,广西桂林541004

出　　处：《桂林理工大学学报》2012年第4期596-599,共4页Journal of Guilin University of Technology

基　　金：国家自然科学基金项目(40862003);广西自然科学基金项目(0542012;05112001-2A5)

摘　　要：以广西天然红辉沸石为原料制备了A型沸石分子筛,采用离子交换法制备二甲酸钾沸石抗菌剂。用X射线衍射、红外光谱对其进行表征分析,证明A型沸石分子筛成功接枝吸附了二甲酸钾。采用试样压片法对A型沸石抗菌剂的抑菌性能进行检测,结果表明:A型沸石抗菌剂对5种菌株均有一定的抑菌效果,其中对大肠杆菌的抑菌作用最强;浓度为0.2～0.3 mol.L-1的盐酸可有效提高A型沸石抗菌剂的抑菌性能,抑菌圈直径达12.43 mm。Natural stellerite as raw material to prepare the type-A zeolite in the method of ion exchange can prepare the potassium diformate-loaded antibacterial agent,and be characterized by XRD and IR spectrometry.The new product of type-A zeolite has a good graft adsorption capacity to potassium diformate.The sample powder is pressed into discs and used in the antibacterial experiment.The results show that a certain diameter of type-A zeolite antibacterial agent can be observed in five different kinds of bacteria.The strongest inhibitory works on E.coli.Concentration of hydrochloric acid by 0.2-0.3 mol·L^-1can effectively improve the antibacterial activity of the new type-A zeolite antibacterial agent.The diameter of type-A zeolite antibacterial agent can reach 12.43 mm.

关 键 词：红辉沸石 A型沸石抗菌剂 压片法 抑菌 

分 类 号：TB383[一般工业技术—材料科学与工程]