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<p>This study focuses on the photocatalytic performance of copper-doped vanadium pentoxide (Cu@V<sub>2</sub>O<sub>5</sub>) synthesized via a hydrothermal method for environmental remediation. Structural and morphological characterizations confirmed successful Cu incorporation without secondary phases, resulting in quasi-spherical nanoparticles with a narrowed band gap of 2.33&#xa0;eV. The adsorption followed by photocatalytic activity was evaluated using methylene blue (MB) degradation under visible-light irradiation at a high initial dye concentration (100&#xa0;ppm). Cu@V<sub>2</sub>O<sub>5</sub> achieved 74% MB removal, with a pseudo-first-order rate constant of 0.0018&#xa0;min<sup>−1</sup>. The material also exhibited moderate colloidal stability and strong surface interaction with cationic dyes. These findings highlight the role of Cu doping in enhancing visible-light activity and surface properties of V<sub>2</sub>O<sub>5</sub>, making Cu@V<sub>2</sub>O<sub>5</sub> a promising candidate for wastewater treatment applications.</p> Graphical abstract <p></p>

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A study on Cu-doped V2O5: Investigating photocatalytic potential for environmental remediation

  • 期刊论文

  • 发表日期：

    2026年1月12日

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  • Abdulrahman A. Abbas,
  • Tarek Aly Elmeligy,
  • Mohamed Taha,
  • Hassan Nageh

摘要

This study focuses on the photocatalytic performance of copper-doped vanadium pentoxide (Cu@V2O5) synthesized via a hydrothermal method for environmental remediation. Structural and morphological characterizations confirmed successful Cu incorporation without secondary phases, resulting in quasi-spherical nanoparticles with a narrowed band gap of 2.33 eV. The adsorption followed by photocatalytic activity was evaluated using methylene blue (MB) degradation under visible-light irradiation at a high initial dye concentration (100 ppm). Cu@V2O5 achieved 74% MB removal, with a pseudo-first-order rate constant of 0.0018 min−1. The material also exhibited moderate colloidal stability and strong surface interaction with cationic dyes. These findings highlight the role of Cu doping in enhancing visible-light activity and surface properties of V2O5, making Cu@V2O5 a promising candidate for wastewater treatment applications.

Graphical abstract