کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5359814 | 1503705 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A mechanism for enhanced hydrophilicity of silver nanoparticles modified TiO2 thin films deposited by RF magnetron sputtering
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A mechanism for enhanced hydrophilicity of silver nanoparticles modified TiO2 thin films deposited by RF magnetron sputtering A mechanism for enhanced hydrophilicity of silver nanoparticles modified TiO2 thin films deposited by RF magnetron sputtering](/preview/png/5359814.png)
چکیده انگلیسی
Ag-TiO2 nanostructured thin films with silver volume fraction of 0-40.0% have been deposited on silicon and quartz substrates by RF magnetron sputtering. Their crystal texture, surface topography, and hydrophilicity have been characterized by X-ray diffractometer, transmission electron microscope, and water contact angle apparatus. The relation of hydrophilic property and silver content has been studied in detail. It is shown that silver content influences crystal texture of TiO2 thin films, and silver in the films is simple substance (Ag0). Hydrophilicity of the films increases with increasing silver content up to 5Â vol% Ag and then decreases. A suitable amount (around 5.0Â vol% Ag) of silver addition can significantly enhance the hydrophilic behavior of TiO2 films. The mechanism can be attributed to the increase of oxygen anion radicals O2â and reactive center of surface Ti3+, and the better separation between electrons and holes on the films surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 255, Issues 13â14, 15 April 2009, Pages 6715-6720
Journal: Applied Surface Science - Volume 255, Issues 13â14, 15 April 2009, Pages 6715-6720
نویسندگان
Fanming Meng, Zhaoqi Sun,