The present work proposed a novel method for preparing vanadium pentoxide (V₂O₅) by microwave drying followed by microwave calcination. The thermal degradation in the whole process was studied by using thermal analysis TG/DSC. The calcined products were characterized by X-ray diffraction, IR spectrum, Raman spectroscopy, X-ray fluorescence and scanning electron microscopy, respectively. The results indicated that more than 98% of V₂O₅ was formed in the products, and a lamellar structure was the characteristic crystal structure of the synthetic products. At a calcination temperature of 360°C, a most optimized crystallinity of the products appeared. The application of microwave irradiation technology has a great potential for the practical preparation of V₂O₅.

本工作提出了一种通过微波干燥然后微波煅烧制备五氧化二钒（V ₂ O ₅）的新方法。通过热分析TG / DSC研究了整个过程中的热降解。煅烧产物分别通过X射线衍射，IR光谱，拉曼光谱，X射线荧光和扫描电子显微镜表征。结果表明，在产物中形成了98％以上的V ₂ O ₅，并且层状结构是合成产物的特征晶体结构。煅烧温度为360°℃，出现最优化的产物结晶度。微波辐照技术的应用对V ₂ O ₅的实际制备具有很大的潜力。