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<p>A simple and inexpensive process from natural phosphate in the presence of Ag<sup>+</sup> ions was used to develop Ag<sub>2</sub>O-loaded hydroxyapatite nanocomposites. The structural and textural characterization of the nanocomposites suggests that the Ag<sub>2</sub>O nanoparticles are well dispersed on the hydroxyapatite (HAp). The prepared nanocomposites show efficient Rhodamine B (RhB) dye photocatalytic degradation in water under visible and UV–visible light irradiation. Meanwhile, the photocorrosion instability and photosensitivity disadvantages of Ag<sub>2</sub>O could be largely solved when loaded into hydroxyapatite, which works as an electron sink receiving the electrons photogenerated by Ag<sub>2</sub>O and fixes the by-products onto the porous matrix. These composites demonstrate a practical potential for the remediation of toxic water contamination under various irradiation sources.</p>

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Development of stable and porous Ag2O-loaded hydroxyapatite nanocomposites for enriched photocatalytic degradation of Rhodamine B under visible light

  • 期刊论文

  • 发表日期：

    2025年1月6日

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  • Abdeladim Oulguidoum,
  • Sara Fatine,
  • Meryem Abbadi,
  • Asmae Bouziani,
  • Zakaria Boujamlaoui,
  • Jean-Michel Nunzi,
  • Abdelaziz Laghzizil

摘要

A simple and inexpensive process from natural phosphate in the presence of Ag+ ions was used to develop Ag2O-loaded hydroxyapatite nanocomposites. The structural and textural characterization of the nanocomposites suggests that the Ag2O nanoparticles are well dispersed on the hydroxyapatite (HAp). The prepared nanocomposites show efficient Rhodamine B (RhB) dye photocatalytic degradation in water under visible and UV–visible light irradiation. Meanwhile, the photocorrosion instability and photosensitivity disadvantages of Ag2O could be largely solved when loaded into hydroxyapatite, which works as an electron sink receiving the electrons photogenerated by Ag2O and fixes the by-products onto the porous matrix. These composites demonstrate a practical potential for the remediation of toxic water contamination under various irradiation sources.