کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10241576 | 46571 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement of photocatalytic activity of TiO2 by adsorbed aluminium(III)
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The photocatalytic activity of TiO2 (Degussa P-25) in the mineralization of maleic acid in aqueous solution at pH = 3 is greatly enhanced by the previous adsorption of aluminium(III) on the catalyst surface. The nature of the intermediates detected during maleic acid degradation is also affected by the presence of Al(III). The observed differences can be related to an oxygen reactivity enhancement. The effect of aluminium(III) in the maleic acid adsorption over the TiO2 surface has also been investigated by using the ATR-FT-IR technique. The UV-vis diffuse reflectance spectra of the catalyst shows a red shift due to aluminium adsorption. At neutral pH, the positive effect of adsorbed Al(III) is not observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis B: Environmental - Volume 55, Issue 2, 28 January 2005, Pages 105-113
Journal: Applied Catalysis B: Environmental - Volume 55, Issue 2, 28 January 2005, Pages 105-113
نویسندگان
Maria Isabel Franch, José Peral, Xavier Domènech, Russell F. Howe, José A. Ayllón,