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<p>The photocatalytic degradation of phenol over Ni-doped Al<sub>2</sub>O<sub>3</sub> was investigated. Materials varying Ni concentrations were synthesized and characterized by XRD, FTIR, UV–Vis–DRS, and XPS. The results showed that Ni doping significantly enhanced photocatalytic activity, attributable to increased UV light absorption and efficient charge carrier separation. The optimal Ni concentration was found to be 1.5 wt%, achieving a 70% phenol degradation in 4&#xa0;h. These findings suggest that Ni-doped Al<sub>2</sub>O<sub>3</sub> holds great promise for wastewater remediation.</p> Graphical abstract <p></p>

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Ni-doped Al2O3-based materials for the photocatalytic degradation of phenol

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年1月3日

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  • Deysi Gómez-Cholula,
  • Juan Edgar Carrera Crespo,
  • Francisco Javier Tzompantzi Morales,
  • Sandra Cipagauta-Díaz

摘要

The photocatalytic degradation of phenol over Ni-doped Al2O3 was investigated. Materials varying Ni concentrations were synthesized and characterized by XRD, FTIR, UV–Vis–DRS, and XPS. The results showed that Ni doping significantly enhanced photocatalytic activity, attributable to increased UV light absorption and efficient charge carrier separation. The optimal Ni concentration was found to be 1.5 wt%, achieving a 70% phenol degradation in 4 h. These findings suggest that Ni-doped Al2O3 holds great promise for wastewater remediation.

Graphical abstract