کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1527289 1511856 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation and photocatalytic activity of dysprosium doped tungsten trioxide nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Preparation and photocatalytic activity of dysprosium doped tungsten trioxide nanoparticles
چکیده انگلیسی
A series of Dy-doped tungsten trioxide (WO3) nanopowders were synthesized via dipping the WO3 into Dy(NO3)3 solution. The WO3 nanoparticles were freshly synthesized through precipitation process from Na2WO4 and hexadecyltrimethylammonium bromide (CTAB). The obtained samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), diffuse reflectance absorption spectroscopy (DRS) and liquid nitrogen adsorption-desorption. Its photoactivity was evaluated through the photodegradation of Rhodamine B (RB) in aqueous solution. The effects of photoreaction conditions on the photoactivity of the obtained samples were investigated in detail. The experimental results indicated that Dy-doping not only improved the light absorption of WO3, but also enhanced the photoactivity and photostability of WO3.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 104, Issues 2–3, 15 August 2007, Pages 377-383
نویسندگان
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