کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1488894 | 992296 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Efficient photocatalytic hydrogen generation by silica supported and platinum promoted titanium dioxide
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Efficient photocatalytic hydrogen generation by silica supported and platinum promoted titanium dioxide Efficient photocatalytic hydrogen generation by silica supported and platinum promoted titanium dioxide](/preview/png/1488894.png)
چکیده انگلیسی
Titanium dioxide was supported on mesoporous silica and promoted with Pt and Ru. The supported photocatalysts show high surface area and better photocatalytic activity in visible light as compared to the benchmark Degussa P25. These photocatalysts were characterized using XRD, BET-SA, and UV-DRS techniques. The surface area of supported photocatalyst was 140.6 m2/g which is higher than Degussa P-25. Supported photocatalyst was evaluated for hydrogen evolution via water splitting reaction using ethanol as a sacrificial donor. Hydrogen yield observed is 4791.43 μmol/h/g of TiO2 and that for P-25 is 161 μmol/h/g of TiO2 under visible light irradiation. The value is 30 times higher than benchmark material Degussa P-25. This photocatalyst is also found stable up to 24 h without replenishing with sacrificial donor ethanol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 48, Issue 9, September 2013, Pages 3545-3552
Journal: Materials Research Bulletin - Volume 48, Issue 9, September 2013, Pages 3545-3552
نویسندگان
Meenal M. Joshi, Nitin K. Labhsetwar, D.V. Parwate, Sadhana S. Rayalu,