摘要
高岭土含有沸石的主要成份SiO2和Al2O3,本研究以高岭土为原料,合成A型沸石,其制程为先将高岭土加热至850℃变性,使其由结晶态变成非晶态,而具有活性,再加入于氢氧化钠水溶液加热反应,制成A型沸石,之后经由离子交换法制备载银沸石抗菌剂.采用平板计数法测试载72h银沸石抗菌剂的抗菌效果,结果显示含2%(ω)Ag的抗菌剂,使用量为培养液的3%(ω)时即可达抗菌效果.
Kaolin contains essential zeolite components SiO2 and Al2O3.A-type zeolite was synthesized by using kaolin as raw material in this study.The kaolin was activated by transforming it from crystalline to amorphous state,then the denatured kaolin was added to an alkaline solution,transformed into A-type zeolite.The ion exchange method was used for preparing Ag-carrying zeolite antimicrobial.A plate count method was used for the antibacterial test after the antimicrobial had been added to an incubation solution and incubated for 72 h.The antibacterial rate shows that 3%(ω) of antimicrobial is enough to kill almost all the bacteria.
出处
《过程工程学报》
CAS
CSCD
北大核心
2009年第S2期97-100,共4页
The Chinese Journal of Process Engineering
关键词
A型沸石
高岭土
载银沸石
抗菌剂
A-type zeolite
kaolin
Ag-loaded zeolite
antimicrobial
