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<p>This study presents the successful fabrication of Cu<sub>2</sub>O@Pt nanodendrites (Cu<sub>2</sub>O@Pt NDs) via a rapid, facile, and eco-friendly synthesis approach. Cu<sub>2</sub>O nanoflowers (NFs), synthesized through a room-temperature reduction reaction, were effectively combined with Pt nanoparticles (Pt NPs) to form Cu<sub>2</sub>O@Pt nanodendrites (Cu<sub>2</sub>O@Pt&#xa0;NDs) structure. Comprehensive characterization using advanced techniques such as UV–Vis spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray photoelectron spectroscopy (XPS) revealed crucial insights into their physicochemical properties, morphology, particle size, and composition. The analyses indicated that the Pt NPs had an average size of 16–18&#xa0;nm, while the Cu<sub>2</sub>O NFs ranged from 160–230&#xa0;nm in diameter. The electrocatalytic capabilities of Cu<sub>2</sub>O@Pt NDs-modified electrodes were rigorously evaluated using cyclic voltammetry (CV) for dye detection in synthetic wastewater. Remarkably, the nanomaterials exhibited superior electrochemical performance, underscoring their promise as candidates for biosensor applications. Their detection range spanned an impressive concentration interval from 10<sup>–12</sup>&#xa0;M to 10<sup>–3</sup>&#xa0;M, with an ultralow limit of detection (LOD) of 5.93&#xa0;nM. These findings highlight the exceptional potential of Cu<sub>2</sub>O@Pt NDs as high-efficiency catalytic platforms for biosensors, offering precise and sensitive detection of dye pollutants. Such capabilities position these materials as valuable tools for advanced wastewater monitoring and treatment technologies.</p>

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Synthesis of Cu2O@Pt nanodendrites and its application for methyl orange detection in synthetic wastewater by electrochemical method

  • 期刊论文

  • 发表日期：

    2025年12月27日

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  • Tran Thi Bich Quyen,
  • Tran Minh Khang,
  • Ngo Nguyen Tra My,
  • Do Minh Khoi,
  • Bui Le Anh Tuan,
  • Luong Huynh Vu Thanh,
  • Duy Toan Pham,
  • Nguyen Le Thanh Huynh

摘要

This study presents the successful fabrication of Cu2O@Pt nanodendrites (Cu2O@Pt NDs) via a rapid, facile, and eco-friendly synthesis approach. Cu2O nanoflowers (NFs), synthesized through a room-temperature reduction reaction, were effectively combined with Pt nanoparticles (Pt NPs) to form Cu2O@Pt nanodendrites (Cu2O@Pt NDs) structure. Comprehensive characterization using advanced techniques such as UV–Vis spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray photoelectron spectroscopy (XPS) revealed crucial insights into their physicochemical properties, morphology, particle size, and composition. The analyses indicated that the Pt NPs had an average size of 16–18 nm, while the Cu2O NFs ranged from 160–230 nm in diameter. The electrocatalytic capabilities of Cu2O@Pt NDs-modified electrodes were rigorously evaluated using cyclic voltammetry (CV) for dye detection in synthetic wastewater. Remarkably, the nanomaterials exhibited superior electrochemical performance, underscoring their promise as candidates for biosensor applications. Their detection range spanned an impressive concentration interval from 10–12 M to 10–3 M, with an ultralow limit of detection (LOD) of 5.93 nM. These findings highlight the exceptional potential of Cu2O@Pt NDs as high-efficiency catalytic platforms for biosensors, offering precise and sensitive detection of dye pollutants. Such capabilities position these materials as valuable tools for advanced wastewater monitoring and treatment technologies.