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<p>To address the increasing global challenges of energy shortages and water pollution caused by organic contaminants, developing efficient and sustainable water treatment technologies has become a key focus in environmental science research. Recently, photoactivated sodium percarbonate (SPC) has gained attention in advanced oxidation processes for degrading organic pollutants due to its high reactivity, environmental compatibility, and ease of storage and handling. This review systematically summarizes recent advances and engineering application potential of photoactivated SPC systems for removing organic pollutants, based on nearly one hundred relevant studies. First, the paper analyzes the UV/SPC system in detail, focusing on the generation of reactive oxygen species (ROS) under different light sources (e.g., ultraviolet and visible light) and their roles in organic pollutant degradation pathways. Second, focusing on reaction condition optimization, this review evaluates how key parameters—SPC dosage, solution pH, coexisting inorganic ions, and natural organic matter—affect pollutant degradation efficiency and reaction selectivity. Furthermore, a comparative analysis examines SPC system performance in degrading typical organic pollutants such as dyes, pesticides, and endocrine-disrupting chemicals. In addition, the review assesses the UV/SPC system’s ecological toxicity and economic feasibility. The established "mechanism-performance-sustainability" evaluation framework will bridge the knowledge gap between researchers and engineers.</p>

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Photocatalytic activation of sodium percarbonate for water pollutant purification: influencing factors, mechanisms and application prospects

  • 期刊论文

  • 发表日期：

    2025年6月23日

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  • Yang Yang,
  • Zhe Wang,
  • Yi Jiang,
  • Yuxin Zhao,
  • Tiehong Song,
  • Hai Lu

摘要

To address the increasing global challenges of energy shortages and water pollution caused by organic contaminants, developing efficient and sustainable water treatment technologies has become a key focus in environmental science research. Recently, photoactivated sodium percarbonate (SPC) has gained attention in advanced oxidation processes for degrading organic pollutants due to its high reactivity, environmental compatibility, and ease of storage and handling. This review systematically summarizes recent advances and engineering application potential of photoactivated SPC systems for removing organic pollutants, based on nearly one hundred relevant studies. First, the paper analyzes the UV/SPC system in detail, focusing on the generation of reactive oxygen species (ROS) under different light sources (e.g., ultraviolet and visible light) and their roles in organic pollutant degradation pathways. Second, focusing on reaction condition optimization, this review evaluates how key parameters—SPC dosage, solution pH, coexisting inorganic ions, and natural organic matter—affect pollutant degradation efficiency and reaction selectivity. Furthermore, a comparative analysis examines SPC system performance in degrading typical organic pollutants such as dyes, pesticides, and endocrine-disrupting chemicals. In addition, the review assesses the UV/SPC system’s ecological toxicity and economic feasibility. The established "mechanism-performance-sustainability" evaluation framework will bridge the knowledge gap between researchers and engineers.