负载纳米银的埃洛石纳米管/聚醚砜杂化超滤膜的制备及其抗菌性能  

Preparation and antibacterial property of halloysite nanotube loaded with silver nanoparticles/polyethersulfone hybrid ultrafiltration membrane

作　　者：陈义丰[1] 王涛[2] 张亚涛[1] 杜雷[3] 李媖[1] 张浩勤[1] 刘金盾[1] 

机构地区：[1]郑州大学化工与能源学院,河南郑州450001 [2]漯河职业技术学院,河南漯河462000 [3]郑州大学生物工程系,河南郑州450001

出　　处：《化工学报》2012年第6期1922-1928,共7页CIESC Journal

基　　金：国家自然科学基金项目(21106137);高等学校博士学科点专项科研基金项目(20114101120001);郑州市创新型科技人才队伍建设工程~~

摘　　要：以聚醚砜(PES)为膜材料,N,N-二甲基乙酰胺(DMAc)为溶剂,聚乙烯吡咯烷酮(PVP)和负载纳米银的埃洛石纳米管(Ag-HNTs)为添加剂,采用相转化法制备聚醚砜超滤膜。系统地考察了添加剂(Ag-HNTs)含量对膜性能的影响,并用抑菌圈实验研究了所制膜的抗菌效果。结果表明:硅烷偶联剂KH-792中的甲氧基与HNTs上的羟基发生反应,接枝量为0.105g KH-792.(g HNTs)-1;改性后的HNTs与Ag发生络合反应,并且络合量近似为0.145g Ag.(g HNTs)-1;溶剂中负载纳米银的埃洛石纳米管(Ag-HNTs)所占比例的增加能提高膜的水通量,而截留率保持在95%左右。所制备的膜对大肠杆菌和金黄色葡萄球菌有较强的抑制作用。Polyethersulfone（PES）ultrafiltration membrane was prepared via phase inversion,using PES as membrane material,N,N-dimethylacetamide（DMAc）as solvent,polyvinylpyrrolidone（PVP）and halloysite nanotube loaded with silver nanoparticles（Ag-HNTs）as additive.The effects of Ag-HNTs concentration in the casting solution dope on the membrane performance were examined.The antibacterial activity of the membrane was tested by an inhibition zone method.The experimental results indicated that the reaction between HNTs and silane coupling agent KH-792 took place successfully,and the grafted amount was 0.105 g KH-792·（g HNTs）-1.The complex reaction between silylated HNTs and Ag＋ occurred successfully with a complex amount of approximately 0.145 g Ag·（g HNTs）-1.As the content of Ag-HNTs increased,pure water flux also increased whereas the rejection was kept at about 95%.In addition,the membrane showed good antibacterial property against E.coli and S.aureus.

关 键 词：埃洛石纳米管 纳米银 聚醚砜超滤膜 抗菌性能 

分 类 号：TQ028.8[化学工程]