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<p>The growing complexity of global water scarcity, demands sustainable purification technologies. Photothermal membrane distillation (PMD) has gained considerable attention as an effective approach for clean water production. However, PMD alone is ineffective for removing organic dyes and volatile organic compounds (VOCs) and is vulnerable to fouling by organic matter. Integrating photocatalysis with PMD offers an effective strategy to overcome these limitations. The resulting hybrid membranes exhibit enhanced performance, enabling photocatalytic degradation of organic contaminants and VOCs, facilitating self-cleaning at the membrane surface. This review first outlines the fundamental principles of photothermal and photocatalytic processes, and examines their synergistic effects on MD performance. It then examines dual-functional (photothermal-photocatalytic) materials, highlighting their mechanisms, structural characteristics, and performance advantages in hybrid membranes, followed by an overview of relevant fabrication strategies. It then discusses key design principles for dual-functional membrane development. Recent progress in photocatalysis-assisted PMD is comprehensively assessed, with focus on the removal of organic pollutants and VOCs. The prospects of coupling photocatalysis with PMD for hydrogen-freshwater co-production and carbon dioxide conversion integrated with freshwater generation are also explored, underscoring the versatility of this hybrid technology. In addition, environmental, economic, and sustainability considerations of photocatalysis-assisted PMD are critically discussed. Finally, key challenges and future research directions for advancing photothermal-photocatalytic membranes are identified.</p>

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Dual-functional photothermal-photocatalytic membranes for simultaneous self-cleaning and water purification: a review

  • 期刊论文

  • 发表日期：

    2026年8月4日

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  • Muhammad Anees Ur Rehman,
  • Mohd Hafiz Dzarfan Othman,
  • Asim Jilani,
  • Imran Ullah Khan,
  • Muhammad Asim,
  • Nur Farahin Suhaimi,
  • Rama Murthi Sooria,
  • Khong Nee Koo,
  • Zeeshan Khan,
  • Mohd Hafiz Puteh,
  • Triyanda Gunawanc,
  • Tonni Agustiono Kurniawand

摘要

The growing complexity of global water scarcity, demands sustainable purification technologies. Photothermal membrane distillation (PMD) has gained considerable attention as an effective approach for clean water production. However, PMD alone is ineffective for removing organic dyes and volatile organic compounds (VOCs) and is vulnerable to fouling by organic matter. Integrating photocatalysis with PMD offers an effective strategy to overcome these limitations. The resulting hybrid membranes exhibit enhanced performance, enabling photocatalytic degradation of organic contaminants and VOCs, facilitating self-cleaning at the membrane surface. This review first outlines the fundamental principles of photothermal and photocatalytic processes, and examines their synergistic effects on MD performance. It then examines dual-functional (photothermal-photocatalytic) materials, highlighting their mechanisms, structural characteristics, and performance advantages in hybrid membranes, followed by an overview of relevant fabrication strategies. It then discusses key design principles for dual-functional membrane development. Recent progress in photocatalysis-assisted PMD is comprehensively assessed, with focus on the removal of organic pollutants and VOCs. The prospects of coupling photocatalysis with PMD for hydrogen-freshwater co-production and carbon dioxide conversion integrated with freshwater generation are also explored, underscoring the versatility of this hybrid technology. In addition, environmental, economic, and sustainability considerations of photocatalysis-assisted PMD are critically discussed. Finally, key challenges and future research directions for advancing photothermal-photocatalytic membranes are identified.