本文關(guān)鍵詞： AlO膜 微濾 載銀 抗菌　出處：《南京工業(yè)大學(xué)學(xué)報(自然科學(xué)版)》2016年06期 　論文類型：期刊論文

【摘要】：以AgNO_3溶液為Ag源,采用直接浸漬法對Al_2O_3膜表面進行抗菌處理,制備載銀陶瓷微濾膜。采用場發(fā)射掃描電子顯微鏡(FESEM)、能量色散X線光譜儀(EDS)及X線光電子能譜儀(XPS)等表征載銀陶瓷膜的結(jié)構(gòu)和形貌。結(jié)果表明:載銀處理對膜的形貌無顯著影響,Ag顆粒在膜表面均勻分布,無明顯團聚現(xiàn)象;400℃熱處理后,Ag以單質(zhì)形式存在于膜表面,具有良好的穩(wěn)定性能。以大腸桿菌和金黃葡萄球菌為試驗菌種,采用振蕩燒瓶法和抑菌圈法測試載銀膜的抗菌性能。發(fā)現(xiàn)載銀膜在大腸桿菌和金黃葡萄球菌培養(yǎng)基上有明顯的抑菌圈,殺菌率達到99.99%;對大腸桿菌菌懸液的過濾實驗結(jié)果表明載銀膜的通量衰減幅度小,載銀后陶瓷膜的抗菌性能得到顯著提高。
[Abstract]:Using AgNO_3 solution as Ag source, the surface of Al_2O_3 film was treated by direct impregnation. The structure and morphology of silver loaded ceramic membrane were characterized by field emission scanning electron microscopy (SEM), energy dispersive X-ray spectrometer (EDS) and X-ray photoelectron spectroscopy (XPS). The morphology has no significant effect on the uniform distribution of Ag particles on the surface of the films. There is no obvious agglomeration phenomenon. After heat treatment at 400 鈩，

本文編號：1515214