Direct synthesis of V2O5 from metals and study the adsorption properties with organic dyes

Vu Thanh Dong; Nguyen Thi Huong

doi:10.51316/jca.2023.058

Authors

Vu Thanh Dong Institute of Chemistry and Materials, Nghia Do, Cau Giay, Hanoi, Vietnam Author
Nguyen Thi Huong Institute of Chemistry and Materials, Academy of Military Science and Technology Author

DOI:

https://doi.org/10.51316/jca.2023.058

Keywords:

Vanadium oxide, organic dyes, adsorption

Abstract

Scientists from all around the world are currently interested in vanadium oxide (V₂O₅) due to its applications in fuel cells, display components, poisonous gas sensors,... The ability to absorb dyes for environmental treatment is the most remarkable among them. In this paper, the authors have presented a direct synthesis of V₂O₅. The sample were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), UV–visible spectrophotometry (UV-Vis) and Raman spectroscopy. The authors also investigated the adsorption properties of prepared V₂O₅ with Methylene Blue (MB) - a colorant widely used in the dyeing industry that causes great harm to the environment and health. The results show that the material can absorb MB up to 90% in the absence of light after 3 minutes. Finally, a few other organic dyes were investigated in order to evaluate the materials' selectivity.

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