Single-Atom Catalysts for Advanced Water and Wastewater Treatment: Recent Advances and Applications

کد مقاله : 1536-IWWA

نویسندگان

مهدی ملکی لنبر، گاگیک بدلیانس قلی کندی * ندارد

چکیده مقاله

The increasing occurrence of emerging contaminants and persistent pollutants in aquatic environments has created a need for efficient and sustainable water and wastewater treatment technologies. Conventional catalytic systems often suffer from limited active sites, low metal utilization efficiency, and insufficient catalytic stability, encouraging the development of advanced materials for environmental remediation. Single-atom catalysts (SACs) have recently emerged as innovative catalytic platforms due to their unique atomic structure, tunable electronic properties, and highly dispersed active sites. This review provides an overview of the recent advances and applications of SACs in advanced water and wastewater treatment. The fundamental characteristics of SACs and their roles in advanced oxidation processes, photocatalytic systems, and electrochemical treatment technologies are discussed. SACs can enhance pollutant degradation by promoting oxidant activation, improving charge transfer, and facilitating the generation of reactive species, including hydroxyl radicals, sulfate radicals, and singlet oxygen. Their applications for the removal of emerging contaminants, such as pharmaceuticals, endocrine-disrupting compounds, and other organic pollutants, are also highlighted. Despite their significant potential, challenges related to synthesis complexity, catalyst stability, cost, and large-scale implementation remain important barriers. Continued development of scalable synthesis methods and practical evaluation under real wastewater conditions is essential for advancing SAC-based technologies toward sustainable water treatment applications.

کلیدواژه ها

Single-atom catalysts, Water treatment, Advanced oxidation, Emerging contaminants, Nanocatalysis

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