کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1675014 | 1008973 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The preparation and characterization of photocatalytically active TiO2 thin films and nanoparticles using Successive-Ionic-Layer-Adsorption-and-Reaction
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
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چکیده انگلیسی
Photocatalytically active TiO2 thin-films were deposited on silicon wafers using the Successive-Ionic-Layer-Adsorption-and-Reaction technique and subsequent hydrothermal and/or furnace annealing. Atomic-force-microscopy images and X-ray diffraction measurements of the TiO2 films obtained under various annealing conditions show how changes of the micro-scale surface structure depend on the post-SILAR treatment. The hydrogen evolution over various TiO2 films was measured. Hydrothermally treated TiO2 films show a higher photocatalytic activity and a much better mechanical stability compared to furnace-annealed films. The optical transmittance of TiO2 thin films on glass substrates was also studied. A red shift was observed with increasing film thickness. TiO2 nanoparticles (â¼10Â nm) that were peeled off from the TiO2 films were investigated using high-resolution-transmission-electron-microscopy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 515, Issue 4, 5 December 2006, Pages 1250-1254
Journal: Thin Solid Films - Volume 515, Issue 4, 5 December 2006, Pages 1250-1254
نویسندگان
Sangmoon Park, Elaine DiMasi, Young-Il Kim, Weiqiang Han, Patrick M. Woodward, Thomas Vogt,