Boosting the Catalytic Efficiency of Vanadium-Doped Titanium Dioxide Nanoparticles for Environmental Applications

• DOI: https://doi.org/10.22533/at.ed.317522503027

• Palavras-chave: Water contamination, vanadium-doped TiO₂, sustainable catalysis, wastewater treatment, adsorption kinetics.

• Keywords: Water contamination, vanadium-doped TiO₂, sustainable catalysis, wastewater treatment, adsorption kinetics.

• Abstract: The contamination of water resources by industrial pollutants, particularly organic dyes, poses a severe threat to ecosystems and public health. Addressing this challenge requires the development of efficient and sustainable technologies for wastewater treatment. Among these, the use of advanced catalytic materials has gained significant attention due to their potential to degrade complex pollutants under mild conditions. In this study, we investigate pure and vanadium-doped TiO₂ nanoparticles, synthesized via the modified Pechini method with varying vanadium percentages for methylene blue (MB) dye adsorption-based degradation. Detailed structural and chemical analyses revealed that vanadium doping enhances the material's surface area, modifies its electronic properties, and increases the concentration of oxygen vacancies, all of which contribute to improved catalytic performance. The 3.1 mol% vanadium-doped TiO₂ sample demonstrated a remarkable 679.5% improvement in degradation efficiency compared to its undoped counterpart. Kinetic and thermodynamic studies further elucidated the mechanisms driving this enhancement. These results underscore the potential of vanadium-doped TiO₂ as a high-performance, environmentally friendly solution for wastewater remediation.