This study presents a novel method for the preparation of Zn₂SnO₄/V₂O₅ nanocomposites via a sonochemical aqueous route. This method is mild, convenient, cheap and efficient. The as prepared samples were characterized by XRD, SEM, EDAX, TEM, BET, FT-IR and UV-DRS spectra. DRS spectrum shows the adsorption edge of Zn₂SnO₄-V₂O₅ in visible region of spectrum. The structural and morphological features of the as synthesized Zn₂SnO₄-V₂O₅ nanocomposites have been observed using both scanning and transmission electron microscopy. BET surface area analysis inferred that the prepared hetero-junctions are meso-porous in nature. The photocatalytic activity of Zn₂SnO₄-V₂O₅ nanocomposites for the degradation of eosin yellow (EY) dye under visible light was investigated in detail. 3% Zn₂SnO₄-V₂O₅ nanocomposite exhibited the highest photocatalytic performance (92% of EY degradation) when compared with 2% Zn₂SnO₄-V₂O₅ and 5% Zn₂SnO₄ - V₂O₅. The adsorption of eosin yellow followed the pseudo-first order kinetic model. Simultaneously, high stability of the sample was also investigated by four successive photodegradation of EY under visible light. The relationship between photocatalytic activity and the structure of 3% Zn₂SnO₄-V₂O₅ nanocomposite is discussed, and possible reaction mechanisms are also proposed. Therefore, the facile sonochemical preparation process provides some insight into the application of Zn₂SnO₄-V₂O₅ nanocomposites in photocatalytic degradation of organic pollutants.

本研究提出了一种通过声化学水法制备Zn ₂ SnO ₄ / V ₂ O ₅纳米复合材料的新方法。该方法温和，方便，便宜，高效。通过XRD，SEM，EDAX，TEM，BET，FT-IR和UV-DRS光谱对所制备的样品进行表征。DRS光谱在可见光谱区域显示了Zn ₂ SnO ₄ -V ₂ O ₅的吸附边缘。合成后的Zn ₂ SnO ₄ -V ₂ O ₅的结构和形态特征使用扫描电子显微镜和透射电子显微镜都可以观察到纳米复合材料。BET表面积分析表明，所制备的异质结本质上是介孔的。详细研究了Zn ₂ SnO ₄ -V ₂ O ₅纳米复合材料在可见光下降解曙红黄（EY）染料的光催化活性。与2％Zn ₂ SnO ₄ -V ₂ O ₅和5％Zn ₂ SnO ₄相比，3％Zn ₂ SnO ₄ -V ₂ O ₅纳米复合材料表现出最高的光催化性能（92％的EY降解）。-V ₂ O ₅。曙红黄的吸附遵循拟一级动力学模型。同时，还通过在可见光下对EY进行了四次连续的光降解研究了样品的高稳定性。探讨了3％Zn ₂ SnO ₄ -V ₂ O ₅纳米复合材料的光催化活性与结构的关系，并提出了可能的反应机理。因此，简便的声化学制备方法为Zn ₂ SnO ₄ -V ₂ O ₅纳米复合材料在有机污染物的光催化降解中的应用提供了一些见识。