A Comparative Photocatalytic Activity of ZnO/SiO2 and V2O5-ZnO/SiO2 by Investigating the Degradation of Rhodamine B

Journal of Applied Chemical Research

مقاله 10، دوره 9، شماره 1، فروردین 2015، صفحه 103-116   

نوع مقاله: Research Paper

نویسندگان

Soodabe Gharibe^* ؛ Leila Vafayi؛ Shahrara Afshar

چکیده

ZnO/SiO2 was prepared using sol-gel method, and vanadium particles were loaded on this
nano-photocatalyst by wet incipient method. They characterized by X-ray diffraction (XRD),
scanning electron microscopy (SEM), energy dispersive (EDX) analysis andFouriertransform
infrared spectroscopy (FT-IR). The XRD patterns showed that the zinc oxide samples have
a wurtzite structure and vanadium doped is in V2O5 crystalline structure. The particle sizes
werearound 32 nmcalculated using Scherrer’s equation. For photocatalytic test, decomposition
of Rhodamine B(RB), as an organic pollutant, was carried out. The photocatalyst V2O5- ZnO/SiO2 was found to be more efficient as compared with ZnO/SiO2. 

کلیدواژه‌ها

Photocatalyst؛ Rhodamine B؛ UV-Vis؛ ZnO؛ V2O5