Abstract Zinc Vanadate Zn3(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)2·2H2O), 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 Zn3(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 m2/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.

中文翻译：

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高效可见光辅助光催化活性钒酸锌Zn3(VO4)2的简便合成

摘要 采用简便的改良水热法合成了宽度和厚度为300-500 nm、直径为50-75 nm的钒酸锌Zn3(VO4)2纳米片。其中含有偏钒酸铵（NH4VO3）粉末与醋酸锌（Zn(CH3COO)2·2H2O）混合，在CTAB和N，N-二甲基甲酰胺（DMF）存在下，将pH值调至5左右，得到白色沉淀. 通过使用紫外-可见分光光度计降解刚果红 (CR) 和结晶紫 (CV) 染料来研究 Zn3(VO4)2 光催化剂的潜力。这些钒酸锌纳米片 (ZnVO-Nps) 由于带隙降低 2.68eV 和表面积大 (84 m2/g) 显示出增强的染料去除 (100%)。光致发光测量显示了蓝色/绿色可见光光学器件的 ZnVO-Nps 潜力。这些结果表明，ZnVO-Nps 具有较大的表面积和孔隙率，因此具有更高的光催化降解能力；提出 ZnVO-Nps 展示了在可见光照射下降解有机污染物的高水平应用。