کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1617229 | 1005681 | 2011 | 5 صفحه PDF | دانلود رایگان |
A nano-sized Fe metal on ZnO–SiO2 was synthesized using the photo-assisted deposition (PAD) and impregnation routes. The obtained samples were characterized by a series of techniques including X-ray diffraction (XRD), UV–vis diffuse reflectance spectroscopy, N2 adsorption, extended X-ray absorption fine structure (EXAFS), and transmission electron microscopy (TEM). Photocatalytic reactivity using Fe–ZnO–SiO2 catalysts under visible-light condition on the degradation of methylene blue dye was evaluated. The results of characterization reveal, a notable photocatalytic activity of PAD:Fe–ZnO–SiO2 which was about 9 and 12 times higher than that of Img:Fe–ZnO–SiO2 and ZnO–SiO2, respectively.
► We prepared Fe/ZnO–SiO2 by two methods.
► We tested photocatalytic activity for degradation of methylene blue dye.
► We controlled band gap and size.
► We found activity of Fe/ZnO–SiO2 prepared by PAD is hightest photocatalytic activity.
Journal: Journal of Alloys and Compounds - Volume 509, Issue 24, 16 June 2011, Pages 6824–6828