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<p>In this study, the NiO/Ag<sub>3</sub>PO<sub>4</sub> heterostructure was synthesized by ultrasonic-assisted precipitation for the degradation of organic pollutants. The morphology, structure, optical and electrical properties of NiO/Ag<sub>3</sub>PO<sub>4</sub> were characterized by XRD, SEM, PL, EIS and UV–Vis DRS. After 50&#xa0;min irradiation with 70 W metal halide lamp, the degradation efficiency of MO, methylene blue (MB) and Rhodamine B (RhB) by NiO/Ag<sub>3</sub>PO<sub>4</sub> was 95.22%, 98.56% and 98.57%. The experiment of free radical capture showed that h<sup>+</sup> was the main active species and O<sub>2</sub><sup>−</sup> was the secondary active species. After four cycles of degradation experiments, the degradation efficiencies of NiO/Ag<sub>3</sub>PO<sub>4</sub> for MO, MB and RhB still reached 82.29%, 86.45% and 87.21%, indicating that the composite material has a strong degradation ability and certain stability at the same time.</p>

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Synthesis of NiO/Ag3PO4 heterostructure and its photocatalytic degradation of methyl orange

  • 期刊论文

  • 发表日期：

    2025年9月13日

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  • Yong Li,
  • Tian Li,
  • Jing Qu,
  • Yulan Ren

摘要

In this study, the NiO/Ag3PO4 heterostructure was synthesized by ultrasonic-assisted precipitation for the degradation of organic pollutants. The morphology, structure, optical and electrical properties of NiO/Ag3PO4 were characterized by XRD, SEM, PL, EIS and UV–Vis DRS. After 50 min irradiation with 70 W metal halide lamp, the degradation efficiency of MO, methylene blue (MB) and Rhodamine B (RhB) by NiO/Ag3PO4 was 95.22%, 98.56% and 98.57%. The experiment of free radical capture showed that h+ was the main active species and O2− was the secondary active species. After four cycles of degradation experiments, the degradation efficiencies of NiO/Ag3PO4 for MO, MB and RhB still reached 82.29%, 86.45% and 87.21%, indicating that the composite material has a strong degradation ability and certain stability at the same time.