کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1649396 1007581 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Solvothermal preparation of Bi2WO6 nanocrystals with improved visible light photocatalytic activity
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Solvothermal preparation of Bi2WO6 nanocrystals with improved visible light photocatalytic activity
چکیده انگلیسی

Bismuth tungstate (Bi2WO6) nanocrystals with the average size of ca. 12 nm had been successfully synthesized by a simple solvothermal method at 180 °C for 2 h. The as-synthesized Bi2WO6 nanocrystals were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, UV–vis diffuse reflectance spectra, and N2 adsorption–desorption measurements. The visible-light-driven photocatalytic activity of the sample was evaluated by photo-degradation of rhodamine-B (RhB) at room temperature, which is much higher than that of the hydrothermal synthesized Bi2WO6 square plates and the commercially available TiO2 (P-25). We believed that the high photocatalytic activity could be ascribed to the intrinsically small grain size and high surface-to-volume ratio associated with the Bi2WO6 nanocrystals.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 63, Issue 26, 31 October 2009, Pages 2194–2197
نویسندگان
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