کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10625847 | 989637 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave hydrothermal synthesis and photocatalytic properties of TiO2/BiVO4 composite photocatalysts
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: Microwave hydrothermal synthesis and photocatalytic properties of TiO2/BiVO4 composite photocatalysts Microwave hydrothermal synthesis and photocatalytic properties of TiO2/BiVO4 composite photocatalysts](/preview/png/10625847.png)
چکیده انگلیسی
TiO2/BiVO4 composite photocatalysts with heterojunction structures were synthesized by the one-step microwave hydrothermal method. The physical and photophysical properties of the as-prepared photocatalysts were fully characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), UV-vis diffuse reflectance spectra, photoluminescence (PL) and BET surface area analysis. The photocatalytic activities were evaluated by the decolorization of rhodamine B under UV and simulated sun-light irradiation. The results reveal that the as-prepared TiO2/BiVO4 composites exhibit higher photocatalytic activities than pure BiVO4. The 20% TiO2/BiVO4 sample shows the best photocatalytic activity. The enhancement of photocatalytic activity is mainly attributed to the increasing separation rate of photogenerated charge carriers. The possible photocatalytic mechanism is discussed on the basis of the calculated energy band positions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 39, Issue 8, December 2013, Pages 8597-8604
Journal: Ceramics International - Volume 39, Issue 8, December 2013, Pages 8597-8604
نویسندگان
Lili Zhang, Guoqiang Tan, Shasha Wei, Huijun Ren, Ao Xia, Yangyang Luo,