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<p>This study investigates the photocatalytic degradation of gallic acid (GA) under LED chip radiation using x-CeO<sub>2</sub>/g-C<sub>3</sub>N<sub>4</sub> composites (<i>x</i> = 5, 10, and 15%wt). The synthesized materials were characterized using XRD, FTIR, UV–Vis-DRS, and SEM. Among the composites, 10%-CeO<sub>2</sub>/g-C<sub>3</sub>N<sub>4</sub> demonstrated significantly enhanced photocatalytic activity compared to pure CeO<sub>2</sub> and g-C<sub>3</sub>N<sub>4</sub>, which can be attributed to its increased surface area. Scavenger studies revealed that reactive oxygen species actively contributed to the GA photodegradation process. These results highlight the potential of CeO<sub>2</sub>/g-C<sub>3</sub>N<sub>4</sub> composites as efficient photocatalysis for the removal of organic pollutants from water.</p> Graphical abstract <p></p>

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Enhanced photocatalytic degradation of gallic acid using CeO2/g-C3N4 composites: Performance evaluation

  • 期刊论文

  • 发表日期：

    2025年5月5日

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  • Fernando Cantor Pérez,
  • Julia Liliana Rodríguez Santillán,
  • Ricardo Santillán Pérez,
  • Iliana Fuentes Camargo,
  • Jesús I. Guzmán Castañeda

摘要

This study investigates the photocatalytic degradation of gallic acid (GA) under LED chip radiation using x-CeO2/g-C3N4 composites (x = 5, 10, and 15%wt). The synthesized materials were characterized using XRD, FTIR, UV–Vis-DRS, and SEM. Among the composites, 10%-CeO2/g-C3N4 demonstrated significantly enhanced photocatalytic activity compared to pure CeO2 and g-C3N4, which can be attributed to its increased surface area. Scavenger studies revealed that reactive oxygen species actively contributed to the GA photodegradation process. These results highlight the potential of CeO2/g-C3N4 composites as efficient photocatalysis for the removal of organic pollutants from water.

Graphical abstract