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中文摘要：
对陶瓷膜表面载银改性以提高其抗污染性能．对α—Al2O3陶瓷膜硅烷化改性后，在其表面负载纳米银颗粒，制备得到载银硅烷化陶瓷膜（Ag-SCM）．采用热重、光电子能谱和扫描电镜等仪器对Ag—SCM进行了表征．以大肠杆菌为实验对象，比较了陶瓷膜改性前后的抑菌效果和对菌落总数为10^7 CFU／mL的水溶液过滤效果．结果表明，纳米银颗粒能均匀地负栽到硅烷化陶瓷膜表面，稳定性好；Ag-SCM能有效抑制菌落生长，对水中的菌体100％的截留，并且膜通量有明显改善，表明Ag-SCM能有效地抑制微生物在膜表面的污染．
英文摘要：
Ceramic membrane was modified by silver to improve its anti-biofouling property. Silver nanoparticles were immobilized onto the surface-silanized α-Al2O3 ceramic membrane to prepare Ag-loaded silanized ceramic membrane （denoted as Ag-SCM）. Ag-SCM was characterized by TGA, XPS and SEM, etc. The stability of silver nanoparticles on ceramic membrane were investigated. Anti-biofouling property was tested with the typical bacteria E. coil with a load of 107 CFU/mL in ultrapure water. It was found that the silver nanoparticles uniformly deposited on the silanized ceramic membrane, and had well stability. Ag-SCM can effectively inhibit the growth of colonies and remove all bacteria in the water. The flux of Ag-SCM increased obviously. The results demonstrated that Ag-SCM can inhibit biofouling caused by bacteria in the membrane surface.
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