Membrane-based nanoconfined heterogeneous catalysis for water purification : A critical review✰
Copyright © 2023 Elsevier Ltd. All rights reserved..
Progress in heterogeneous advanced oxidation processes (AOPs) is hampered by several issues including mass transfer limitation, limited diffusion of short-lived reactive oxygen species (ROS), aggregation of nanocatalysts, and loss of nanocatalysts to treated water. These issues have been addressed in recent studies by executing the heterogeneous AOPs in confinement, especially in the nanopores of catalytic membranes. Under nanoconfinement (preferably at the length of less than 25 nm), the oxidant-nanocatalyst interaction, ROS-micropollutant interaction and diffusion of ROS have been observed to significantly improve, which results in enhanced ROS yield and mass transfer, improved reaction kinetics and reduced matrix effect as compared to conventional heterogenous AOP configuration. Given the significance of nanoconfinement effect, this study presents a critical review of the current status of membrane-based nanoconfined heterogeneous catalysis system for the first time. A succinct overview of the nanoconfinement concept in the context of membrane-based nanofluidic platforms is provided to elucidate the theoretical and experimental findings related to reaction kinetics, reaction mechanisms and molecule transport in membrane-based nanoconfined AOPs vs. conventional AOPs. In addition, strategies to construct membrane-based nanoconfined catalytic systems are explained along with conflicting arguments/opinions, which provides critical information on the viability of these strategies and future research directions. To show the desirability and applicability of membrane-based nanoconfined catalysis systems, performance governing factors including operating conditions and water matrix effect are particularly focused. Finally, this review presents a systematic account of the opportunities and technological constraints in the development of membrane-based nanoconfined catalytic platform to realize effective micropollutant elimination in water treatment.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:230 |
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| Enthalten in: |
Water research - 230(2023) vom: 15. Feb., Seite 119577 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ly, Quang Viet [VerfasserIn] |
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| Links: |
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| Themen: |
Catalytic membranes |
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| Anmerkungen: |
Date Completed 23.01.2023 Date Revised 23.01.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.watres.2023.119577 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Copyright © 2023 Elsevier Ltd. All rights reserved. | ||
| 520 | |a Progress in heterogeneous advanced oxidation processes (AOPs) is hampered by several issues including mass transfer limitation, limited diffusion of short-lived reactive oxygen species (ROS), aggregation of nanocatalysts, and loss of nanocatalysts to treated water. These issues have been addressed in recent studies by executing the heterogeneous AOPs in confinement, especially in the nanopores of catalytic membranes. Under nanoconfinement (preferably at the length of less than 25 nm), the oxidant-nanocatalyst interaction, ROS-micropollutant interaction and diffusion of ROS have been observed to significantly improve, which results in enhanced ROS yield and mass transfer, improved reaction kinetics and reduced matrix effect as compared to conventional heterogenous AOP configuration. Given the significance of nanoconfinement effect, this study presents a critical review of the current status of membrane-based nanoconfined heterogeneous catalysis system for the first time. A succinct overview of the nanoconfinement concept in the context of membrane-based nanofluidic platforms is provided to elucidate the theoretical and experimental findings related to reaction kinetics, reaction mechanisms and molecule transport in membrane-based nanoconfined AOPs vs. conventional AOPs. In addition, strategies to construct membrane-based nanoconfined catalytic systems are explained along with conflicting arguments/opinions, which provides critical information on the viability of these strategies and future research directions. To show the desirability and applicability of membrane-based nanoconfined catalysis systems, performance governing factors including operating conditions and water matrix effect are particularly focused. Finally, this review presents a systematic account of the opportunities and technological constraints in the development of membrane-based nanoconfined catalytic platform to realize effective micropollutant elimination in water treatment | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Review | |
| 650 | 4 | |a Catalytic membranes | |
| 650 | 4 | |a Density functional theory | |
| 650 | 4 | |a Micropollutants | |
| 650 | 4 | |a Nanoconfined catalysis | |
| 650 | 4 | |a Reactive oxygen species | |
| 650 | 4 | |a Water pollution | |
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| 650 | 7 | |a Water Pollutants, Chemical |2 NLM | |
| 700 | 1 | |a Cui, Lele |e verfasserin |4 aut | |
| 700 | 1 | |a Asif, Muhammad Bilal |e verfasserin |4 aut | |
| 700 | 1 | |a Khan, Waris |e verfasserin |4 aut | |
| 700 | 1 | |a Nghiem, Long D |e verfasserin |4 aut | |
| 700 | 1 | |a Hwang, Yuhoon |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Zhenghua |e verfasserin |4 aut | |
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