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<p>The removal of diverse contaminants in wastewater remains a major challenge due to low treatment efficiencies, high catalyst costs, and risks of residual chemicals. In this work, we introduce a polymer-coated nanowire sponge (PNS) based contact electro-catalysis (CEC) system for achieving the disinfection of microorganisms and the degradation of multiple micropollutants. Under ultrasonic stimulation, PNS facilitates interfacial electron transfer and generates a high rate of reactive oxygen species (ROS). Its synergistic ROS generation and static charge electroporation achieve over 99% disinfection within 3 minutes while degrading dyes, waste tire leachate, and reducing heavy metal ions in wastewater under ambient conditions. The system also exhibits a high hydrogen peroxide (H₂O₂) production rate of 20.2 ± 0.1 μmol h⁻¹. Furthermore, PNS demonstrates excellent versatility, ease of recovery, and reusability, highlighting its strong potential for both point-of-use and large-scale wastewater treatment applications.</p>

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A polymer-coated nanowire sponge–based contact electrocatalytic system for simultaneous disinfection and removal of multiple micropollutants

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月23日

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  • Geng-Sheng Lin,
  • Arshad Khan,
  • Kuldeep Kaswan,
  • Shuai Wang,
  • Manish Kumar Sharma,
  • Ravindra Joshi,
  • Meenakshi Ray,
  • Ping-Yu Yang,
  • Chun-Yo Ting,
  • Ji Gao,
  • Xing Xie,
  • Tsung-Shing Wang,
  • Zong-Hong Lin,
  • Zhaohui Tong

摘要

The removal of diverse contaminants in wastewater remains a major challenge due to low treatment efficiencies, high catalyst costs, and risks of residual chemicals. In this work, we introduce a polymer-coated nanowire sponge (PNS) based contact electro-catalysis (CEC) system for achieving the disinfection of microorganisms and the degradation of multiple micropollutants. Under ultrasonic stimulation, PNS facilitates interfacial electron transfer and generates a high rate of reactive oxygen species (ROS). Its synergistic ROS generation and static charge electroporation achieve over 99% disinfection within 3 minutes while degrading dyes, waste tire leachate, and reducing heavy metal ions in wastewater under ambient conditions. The system also exhibits a high hydrogen peroxide (H₂O₂) production rate of 20.2 ± 0.1 μmol h⁻¹. Furthermore, PNS demonstrates excellent versatility, ease of recovery, and reusability, highlighting its strong potential for both point-of-use and large-scale wastewater treatment applications.