Facile synthesis of Zinc vanadate Zn-3(VO4)(2) for highly efficient visible light assisted photocatalytic activity

摘要

Zinc Vanadate Zn-3(VO4)(2) nanoplates with width and thickness 300-500 nm and 50-75 nm diameter were synthesized by the facile modified hydrothermal method. Which containing mixing of Ammonia metavanadate (NH4VO3) powder with zinc acetate (Zn(CH3COO)(2) center dot 2H(2)O), in the presence of CTAB and N, N-dimethyl formamide (DMF), the pH was adjusted around 5 and white precipitates were obtained. The potential of Zn-3(VO4)(2) photocatalyst was investigated by degrading Congo Red (CR) and Crystal Violet (CV) dyes using a UV-visible spectrophotometer. These Zinc vanadate nanoplates (ZnVO-Nps) showed enhanced dye removal (100%) due to reduced band gap 2.68eV and high surface area (84 m(2)/g). The Photoluminescence measurement showed the ZnVO-Nps potential for blue/green visible optical devices. These result showed that ZnVO-Nps have higher photocatalytic degradation due to the large surface area and porosity; it is proposed that the ZnVO-Nps demonstrated the high-level application for the degradation of organic pollutants under visible light irradiation. (C) 2018 Elsevier B.V. All rights reserved.