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<p>Water pollutants constitute a significant environmental concern today. Organophosphorus compounds, notably parathion, represent a critical category of water pollutants. Their extensive usage poses substantial risks to human health and the environment, necessitating their removal from water sources. This study focuses on the photocatalytic degradation of parathion, utilizing a g-C<sub>3</sub>N<sub>5</sub>/CuS/AgNPs nanocomposite synthesized through a combination of hydrothermal and ultrasonic methods. The nanocomposite was characterized using microscopic and spectroscopic techniques and demonstrated the capacity to degrade approximately 94.90% of parathion in the presence of visible light within one hour at pH 6. Parameters such as pH, initial pollutant concentration, and photocatalyst concentration were optimized. The study’s findings highlight that <sup>•</sup>O<sub>2</sub><sup>−</sup> and <sup>•</sup>OH play a predominant role in the degradation process of this contaminant.</p>

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Synthesis and characterization of g-C3N5/CuS/AgNPs nanocomposite as a Z-scheme photocatalyst for efficient methyl parathion degradation

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月29日

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  • Hakimeh Teymourinia,
  • Hassan Abbas Alshamsi,
  • Mehrnaz Gharagozlou,
  • Abbas Al-nayili,
  • Mitra Gholami

摘要

Water pollutants constitute a significant environmental concern today. Organophosphorus compounds, notably parathion, represent a critical category of water pollutants. Their extensive usage poses substantial risks to human health and the environment, necessitating their removal from water sources. This study focuses on the photocatalytic degradation of parathion, utilizing a g-C3N5/CuS/AgNPs nanocomposite synthesized through a combination of hydrothermal and ultrasonic methods. The nanocomposite was characterized using microscopic and spectroscopic techniques and demonstrated the capacity to degrade approximately 94.90% of parathion in the presence of visible light within one hour at pH 6. Parameters such as pH, initial pollutant concentration, and photocatalyst concentration were optimized. The study’s findings highlight that •O2− and •OH play a predominant role in the degradation process of this contaminant.