کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10574306 | 976550 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Controllable preparation of Nano-MgO and investigation of its bactericidal properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی معدنی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Samples of nano-MgO with varying particle sizes were prepared by four different methods using Mg(NO3)2 · 6H2O, Na2CO3, urea and ammonia as raw materials and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), low temperature N2 adsorption-desorption measurements and FT-IR spectroscopy. Bactericidal experiments with Bacillus subtilis var. niger and Staphylococcus aureus were carried out using as-synthesized nano-MgO samples and the bactericidal mechanism was also investigated. The results showed that the bactericidal efficacy of nano-MgO increases with decreasing particle size. The bactericidal efficacy of the samples was compared with that of TiO2, a common photoactive bactericidal material. The nano-MgO has better bactericidal activity, both when used directly and as an additive in an interior wall paint. Furthermore, nano-MgO is active even in the absence of irradiation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Inorganic Biochemistry - Volume 99, Issue 5, May 2005, Pages 986-993
Journal: Journal of Inorganic Biochemistry - Volume 99, Issue 5, May 2005, Pages 986-993
نویسندگان
Lei Huang, Dian-Qing Li, Yan-Jun Lin, Min Wei, David G. Evans, Xue Duan,