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<p>Mechanochemistry provides a sustainable approach for environmental treatment by utilizing mechanical forces to induce selective bond cleavage, enabling effective degradation of emerging contaminants, such as per- and polyfluoroalkyl substances (PFAS) and pharmaceuticals and personal care products (PPCPs), without toxic reagents. For instance, high-energy ball milling under solvent-free conditions efficiently degrades persistent pollutants like perfluorooctanesulfonic acid (PFOS), while piezo-catalysis and contact-electro-catalysis enhance organic pollutant removal in aqueous systems. Mechanochemistry also excels in recovering valuable resources, such as critical metals from spent lithium-ion batteries and the recycling and processing of polymers, supporting circular economy principles. Recent advances in these applications, supported by case studies, highlight mechanochemistry’s potential to address limitations of traditional technologies, including high costs and chemical reagent use. Future research should focus on scaling up energy-efficient mechanochemical processes for broader environmental applications.</p>

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Mechanochemical Approaches for Emerging Contaminant Removal and Resource Recovery

  • 期刊论文

  • 发表日期：

    2025年6月4日

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  • Yuxiang Shi,
  • Wei-xian Zhang

摘要

Mechanochemistry provides a sustainable approach for environmental treatment by utilizing mechanical forces to induce selective bond cleavage, enabling effective degradation of emerging contaminants, such as per- and polyfluoroalkyl substances (PFAS) and pharmaceuticals and personal care products (PPCPs), without toxic reagents. For instance, high-energy ball milling under solvent-free conditions efficiently degrades persistent pollutants like perfluorooctanesulfonic acid (PFOS), while piezo-catalysis and contact-electro-catalysis enhance organic pollutant removal in aqueous systems. Mechanochemistry also excels in recovering valuable resources, such as critical metals from spent lithium-ion batteries and the recycling and processing of polymers, supporting circular economy principles. Recent advances in these applications, supported by case studies, highlight mechanochemistry’s potential to address limitations of traditional technologies, including high costs and chemical reagent use. Future research should focus on scaling up energy-efficient mechanochemical processes for broader environmental applications.