Application of spectroscopic methods for structural analysis of monoclinic bismuth vanadate nanoparticles (BiVO4) with different morphologies in the degradation of Rhodamine B dye
Subject Areas :majid mozaffari 1 , omid niazmand 2
1 - Department of Chemistry, Shahrood Branch, Islamic Azad University, Shahrood, Iran.
2 - Department of Chemistry, Damghan Branch, Islamic Azad University, Damghan, Iran
Keywords: "Bismuth Vanadate", "Poly Ethylene Glycol", "Glycine", " BiVO4", "Tryptophan",
Abstract :
In this Research, BiVO4 nanoparticles using the templates of acrylamide, tryptophan, glycine and polyethylene glycol in same situation of pH and temperature for one pot reaction were prepared. The physicochemical properties of the samples were characterized by diffuse reflectance spectroscopy (DRS), Raman spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction spectrometer (XRD) techniques. According to the appropriate band gap range from a survey of DRS these compounds suitable for degradation organic pollutants under the terms of the visible light. Rhodamine B as one of the great stability of industrial pollution as well as contaminants was selected. All samples payoff in degradation and discoloration of Rhodamine B (Rh B) showed, but BiVO4 prepared by PEG in about 300 minutes، pH 7 and a concentration of 0.2 grams per liter of photocatalytic, the best performance was in the degradation and decolorization. In the process of photocatalytic degradation of Rhodamine B (Rh B) bismuth vanadate best performance was prepared by polyethylene glycol as a bridging agent, Due to the specific structure and a high level of photocatalytic ability is capable of more than the other compounds.
_||_