کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1797107 1023765 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of crystallite size on the surface defect of nano-TiO2 prepared via solvothermal synthesis
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Effect of crystallite size on the surface defect of nano-TiO2 prepared via solvothermal synthesis
چکیده انگلیسی

Nano-TiO2 powders were synthesized by the solvothermal method under various reaction conditions in order to obtain average crystallite sizes of 9–15 nm. The amounts of surface defect of TiO2 were measured by means of temperature-programmed desorption of CO2 and electron spin resonance spectroscopy. It was found that the ratios of surface defect/specific surface area increased significantly with increasing TiO2 crystallite size. The TiO2 with higher amounts of surface defects exhibited much higher photocatalytic activity for ethylene decomposition.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 297, Issue 1, 15 December 2006, Pages 234–238
نویسندگان
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