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<p>Electrochemical advanced oxidation processes (EAOPs) represent an efficient and environmentally sustainable approach for wastewater treatment and potable water production. However, their widespread application is limited by the lack of stable and efficient anode materials. This review critically assesses the potential of self-doped titanium nanotube arrays (TNAs) as promising anodes for EAOPs, summarizing recent advances in their synthesis, electrochemical characteristics, operational stability, and degradation performance. Particular attention is given to the effects of synthesis parameters and structural features on electrodes activity and durability. Although self-doped TNAs exhibit high catalytic efficiency toward the generation of hydroxyl and sulfate radicals, their limited stability remains a major obstacle to practical application. The most effective performance-enhancement strategies include using porous titanium substrates and modifying surfaces with transition metals, which significantly improve both catalytic activity and operational lifetime. Further research should focus on optimizing synthesis parameters and clarifying degradation mechanisms to enable the reliable and large-scale implementation of TNA-based anodes in electrochemical water treatment technologies.</p>

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Use of Self-doped Titanium Nanotube Array Anode Materials in Electrochemical Advanced Oxidation Processes: A Review

  • 期刊论文

  • 发表日期：

    2026年2月26日

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  • Victoria Plis,
  • Andrey Kislyi,
  • Anastasiia Klevtsova,
  • Ilya Moroz,
  • Semyon Mareev

摘要

Electrochemical advanced oxidation processes (EAOPs) represent an efficient and environmentally sustainable approach for wastewater treatment and potable water production. However, their widespread application is limited by the lack of stable and efficient anode materials. This review critically assesses the potential of self-doped titanium nanotube arrays (TNAs) as promising anodes for EAOPs, summarizing recent advances in their synthesis, electrochemical characteristics, operational stability, and degradation performance. Particular attention is given to the effects of synthesis parameters and structural features on electrodes activity and durability. Although self-doped TNAs exhibit high catalytic efficiency toward the generation of hydroxyl and sulfate radicals, their limited stability remains a major obstacle to practical application. The most effective performance-enhancement strategies include using porous titanium substrates and modifying surfaces with transition metals, which significantly improve both catalytic activity and operational lifetime. Further research should focus on optimizing synthesis parameters and clarifying degradation mechanisms to enable the reliable and large-scale implementation of TNA-based anodes in electrochemical water treatment technologies.