کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1461419 989619 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The preparation, characterization and photocatalytic activity of radical-shaped CeO2/ZnO microstructures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
The preparation, characterization and photocatalytic activity of radical-shaped CeO2/ZnO microstructures
چکیده انگلیسی

This paper uses a wet-chemical precipitation route to prepare radical-shaped ZnO microprisms and to deposit Cerium oxide (CeO2) on the surface of ZnO, to form CeO2/ZnO microstructures. The samples are characterized using X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and UV–vis diffuse reflectance spectroscopy. Their catalytic activity is also evaluated using methylene blue (MB) as a detection reagent. CeO2/ZnO systems exhibit higher UV absorption and transparency in the visible region. The experimental results show that the deposition of CeO2 nanospecies is successful and that the radical-shaped microstructures of ZnO are well maintained. The CeO2/ZnO microstructures exhibit a much greater intensity of UV-light absorptivity and much higher photocatalytic activity than those of radical-shaped ZnO microprisms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 40, Issue 3, April 2014, Pages 4019–4024
نویسندگان
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