کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5438726 | 1398187 | 2016 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of Bi2WO6 photocatalyst by high-energy ball milled Bi2O3-WO3 mixture
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Mechanochemical methods offer a simple and low-cost technique to synthesize nanomaterials. In this work, a new route for preparing Bi2WO6 photocatalyst combining high-energy ball milling and solid-state reactions is explored. By using the mechanochemically-activated Bi2O3-WO3 mixture as a starting raw material, the preparation temperature of Bi2WO6 is successfully reduced to 400 °C. The obtained Bi2WO6 nanopowder as-well-as the mechanochemically-activated Bi2O3-WO3 mixture show a considerable photocatalytic activity for the decomposition of Rhodamine B. Bi2WO6 nanopowders calcined at 400 °C exhibited a higher photocatalytic activity respect to powders calcined at a higher temperatures. The small amount of Bi2O3 and WO3 contained in the optimized photocatalysts is thought to be helpful in establishing a complex ternary heterostructure system, allowing for an improved visible-light driven photocatalytic activity. Experimental results show that a combination of high-energy ball milling and solid-state reactions could be a promising technique for fabricating highly efficient photocatalysts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 42, Issue 15, 15 November 2016, Pages 16749-16757
Journal: Ceramics International - Volume 42, Issue 15, 15 November 2016, Pages 16749-16757
نویسندگان
Peng Zhang, Xiaoxu Teng, Xianghua Feng, Shimin Ding, Guoqing Zhang,