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<p>Phenolic compounds are persistent pollutants in industrial wastewater, requiring efficient and sustainable removal technologies. In this work, we report the synthesis of a novel PbO<sub>2</sub>–montmorillonite/polyaniline (PbO<sub>2</sub>–MMt–PANI) nanocomposite electrode for the electrochemical degradation of phenol. Structural analyses confirmed the successful dispersion of nanosized PbO<sub>2</sub> within the clay framework, stabilized and interconnected by the conductive PANI matrix. Electrochemical tests demonstrated remarkable redox stability and resistance to passivation, in contrast to conventional PbO<sub>2</sub>. Under constant current electrolysis, the composite achieved 93.8% phenol degradation within 180&#xa0;min, compared to 72.5% with pure PbO<sub>2</sub>. This synergy between PbO<sub>2</sub>, montmorillonite, and PANI provides enhanced efficiency, stability, and durability, highlighting the potential of the composite as a promising electrode material for advanced wastewater treatment.</p> Graphical Abstract <p></p>

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A novel clay–metal–polymer nanocomposite for efficient phenol removal via electrochemical degradation

  • 期刊论文

  • 发表日期：

    2026年2月2日

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  • Ibtissem Bousnoubra,
  • Lynda Aroui,
  • Badreddine Toubal,
  • Hichem Tahraoui,
  • Mohammed Kebir,
  • Jie Zhang,
  • Abdeltif Amrane,
  • Amine Aymen Assadi,
  • Farid Fadhillah,
  • Fekri Abdulraqeb Ahmed Ali

摘要

Phenolic compounds are persistent pollutants in industrial wastewater, requiring efficient and sustainable removal technologies. In this work, we report the synthesis of a novel PbO2–montmorillonite/polyaniline (PbO2–MMt–PANI) nanocomposite electrode for the electrochemical degradation of phenol. Structural analyses confirmed the successful dispersion of nanosized PbO2 within the clay framework, stabilized and interconnected by the conductive PANI matrix. Electrochemical tests demonstrated remarkable redox stability and resistance to passivation, in contrast to conventional PbO2. Under constant current electrolysis, the composite achieved 93.8% phenol degradation within 180 min, compared to 72.5% with pure PbO2. This synergy between PbO2, montmorillonite, and PANI provides enhanced efficiency, stability, and durability, highlighting the potential of the composite as a promising electrode material for advanced wastewater treatment.

Graphical Abstract