發(fā)布時(shí)間：2018-06-17 13:27

  本文選題：銀 + 稀土�。� 參考：《硅酸鹽通報(bào)》2017年02期

【摘要】：利用溶膠-凝膠法制得白炭黑,并在制備時(shí)將稀土元素鉺和銀離子共同摻雜到白炭黑中,得到一種含稀土的新型無機(jī)抗菌材料。通過單因素實(shí)驗(yàn)得到最佳制備條件為:稀土元素鉺濃度0.005 mol·L~(-1),反應(yīng)溫度90℃,反應(yīng)時(shí)間1 h。在此條件下利用平板涂布法進(jìn)行抗菌檢測,發(fā)現(xiàn)銀-鉺抗菌白炭黑對(duì)大腸桿菌具有很好的殺菌效果,殺菌率達(dá)99.38%。采用XRD、FTIR、SEM和EDS等對(duì)樣品進(jìn)行表征,結(jié)果表明產(chǎn)品為無定形態(tài);稀土鉺和金屬銀的添加并沒有明顯改變白炭黑原有的結(jié)構(gòu);實(shí)驗(yàn)制備的樣品中含有稀土元素鉺和金屬銀,銀是附著在載體白炭黑上的,而稀土元素鉺則是單獨(dú)游離在材料中。
[Abstract]:Silica was prepared by sol-gel method, and rare earth element erbium and silver ions were doped into silica to obtain a new inorganic antibacterial material containing rare earth. The optimum preparation conditions were obtained by single factor experiment: erbium concentration 0.005 mol / L ~ (-1), reaction temperature 90 鈩，

本文編號(hào)：2031212