کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10155621 | 1666356 | 2019 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Temperature-dependent preparation of bismuth pyrostannate Bi2Sn2O7 and its photocatalytic characterization
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Temperature-dependent preparation of bismuth pyrostannate Bi2Sn2O7 and its photocatalytic characterization Temperature-dependent preparation of bismuth pyrostannate Bi2Sn2O7 and its photocatalytic characterization](/preview/png/10155621.png)
چکیده انگلیسی
Bi2Sn2O7 nanoparticles were successfully synthesized via a fast microwave-assisted method and high temperature treatment. The obtained nanoparticles were characterized using X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), UV-Vis diffuse reectance spectroscopy (DRS), photoluminescence spectroscopy (PL), total organic carbon (TOC) measurement and Raman spectroscopy. We found that there is an optimal thermal treatment temperature for Bi2Sn2O7 for the highest photocatalytic activity in the decomposition of rhodamine B (RhB) under visible light irradiation. We observed an improvement in activity when the thermal treatment temperature increases from room temperature to 500âC, but the activity decreases when the sintering temperature is increased further. The reason behind the enhanced photocatalytic efficiency is a better separation of the charge carriers which is competitive with the specific surface area, crystallinity and crystal size.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 221, 1 January 2019, Pages 197-202
Journal: Materials Chemistry and Physics - Volume 221, 1 January 2019, Pages 197-202
نویسندگان
Nguyen Dang Phu, Pham Khac Vu, Dang Duc Dung, Do Danh Bich, Le Mai Oanh, Luc Huy Hoang, Nguyen Van Hung, Pham Van Hai,