Adsorption Removal of NO2 Under Low-Temperature and Low-Concentration Conditions: A Review of Adsorbents and Adsorption Mechanisms

Yuying Wang; Tianqi Wang; Qinfen Gu; Jin Shang

doi:10.1002/adma.202401623

Adsorption Removal of NO₂ Under Low-Temperature and Low-Concentration Conditions: A Review of Adsorbents and Adsorption Mechanisms

Yuying Wang, Tianqi Wang, Qinfen Gu^*, Jin Shang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

22 Citations (Scopus)

Abstract

The efficient mitigation of harmful nitrogen oxides (NO_x) under ambient conditions remains a challenging task. Selective adsorption offers a viable solution for the capture of low-concentration NO_x from the polluted stream at low temperatures. This review summarizes recent progress in the development of NO₂ adsorbents, delves into the understanding of adsorption mechanisms, and discusses the criteria for evaluating their performance. First, the present NO₂ adsorbents are categorized according to their distinct characteristics. This review then provides insights into the mechanisms of adsorption, highlighting the interaction between active sites and NO₂, drawing from both experimental and theoretical research. The performance of these adsorbents is also assessed, focusing on their capacity, reusability, stability and selectivity. Finally, perspectives are proposed to address the significant challenges and explore potential advancements for NO₂ adsorbents, aiming to enhance their suitability for diverse practical application scenarios. © 2024 Wiley-VCH GmbH.

Original language	English
Article number	2401623
Journal	Advanced Materials
Volume	37
Issue number	5
Online published	10 Dec 2024
DOIs	https://doi.org/10.1002/adma.202401623
Publication status	Published - 5 Feb 2025

Funding

This work was financially supported by the Science and Technology Innovation Commission of Shenzhen Municipality through its Basic Research Fund (Ref: JCYJ20210324134006019), the Research Grants Council of Hong Kong through its General Research Fund (Ref: CityU 11317722, 11310223), and the Hong Kong Government Environment and Ecology Bureau through its Green Tech Fund (Ref: GTF 2020201830). Q.F.G. acknowledges the research support provided by the Australian Synchrotron, ANSTO.

Research Keywords

activated carbons
ambient conditions
mechanism, metal-organic frameworks
NO2 adsorbents
zeolites

RGC Funding Information

RGC-funded

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10.1002/adma.202401623

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title = "Adsorption Removal of NO2 Under Low-Temperature and Low-Concentration Conditions: A Review of Adsorbents and Adsorption Mechanisms",

abstract = "The efficient mitigation of harmful nitrogen oxides (NOx) under ambient conditions remains a challenging task. Selective adsorption offers a viable solution for the capture of low-concentration NOx from the polluted stream at low temperatures. This review summarizes recent progress in the development of NO2 adsorbents, delves into the understanding of adsorption mechanisms, and discusses the criteria for evaluating their performance. First, the present NO2 adsorbents are categorized according to their distinct characteristics. This review then provides insights into the mechanisms of adsorption, highlighting the interaction between active sites and NO2, drawing from both experimental and theoretical research. The performance of these adsorbents is also assessed, focusing on their capacity, reusability, stability and selectivity. Finally, perspectives are proposed to address the significant challenges and explore potential advancements for NO2 adsorbents, aiming to enhance their suitability for diverse practical application scenarios. {\textcopyright} 2024 Wiley-VCH GmbH.",

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author = "Yuying Wang and Tianqi Wang and Qinfen Gu and Jin Shang",

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AU - Wang, Yuying

AU - Wang, Tianqi

AU - Gu, Qinfen

AU - Shang, Jin

PY - 2025/2/5

Y1 - 2025/2/5

N2 - The efficient mitigation of harmful nitrogen oxides (NOx) under ambient conditions remains a challenging task. Selective adsorption offers a viable solution for the capture of low-concentration NOx from the polluted stream at low temperatures. This review summarizes recent progress in the development of NO2 adsorbents, delves into the understanding of adsorption mechanisms, and discusses the criteria for evaluating their performance. First, the present NO2 adsorbents are categorized according to their distinct characteristics. This review then provides insights into the mechanisms of adsorption, highlighting the interaction between active sites and NO2, drawing from both experimental and theoretical research. The performance of these adsorbents is also assessed, focusing on their capacity, reusability, stability and selectivity. Finally, perspectives are proposed to address the significant challenges and explore potential advancements for NO2 adsorbents, aiming to enhance their suitability for diverse practical application scenarios. © 2024 Wiley-VCH GmbH.

AB - The efficient mitigation of harmful nitrogen oxides (NOx) under ambient conditions remains a challenging task. Selective adsorption offers a viable solution for the capture of low-concentration NOx from the polluted stream at low temperatures. This review summarizes recent progress in the development of NO2 adsorbents, delves into the understanding of adsorption mechanisms, and discusses the criteria for evaluating their performance. First, the present NO2 adsorbents are categorized according to their distinct characteristics. This review then provides insights into the mechanisms of adsorption, highlighting the interaction between active sites and NO2, drawing from both experimental and theoretical research. The performance of these adsorbents is also assessed, focusing on their capacity, reusability, stability and selectivity. Finally, perspectives are proposed to address the significant challenges and explore potential advancements for NO2 adsorbents, aiming to enhance their suitability for diverse practical application scenarios. © 2024 Wiley-VCH GmbH.

KW - activated carbons

KW - ambient conditions

KW - mechanism, metal-organic frameworks

KW - NO2 adsorbents

KW - zeolites

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DO - 10.1002/adma.202401623

M3 - RGC 21 - Publication in refereed journal

SN - 0935-9648

VL - 37

JO - Advanced Materials

JF - Advanced Materials

IS - 5

M1 - 2401623

ER -

Adsorption Removal of NO₂ Under Low-Temperature and Low-Concentration Conditions: A Review of Adsorbents and Adsorption Mechanisms

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GRF: Selective Gas Adsorption by Single-atom Extraframework Transition Metal Sites Regularly Arranged Inside Porous Crystalline Matrices

GRF: Develop Robust Metal-Organic Frameworks-based Adsorbents for Toxic and Corrosive Gases: Importance of Specific Binding Sites and Adsorption-Desorption Mechanism

Cite this

Adsorption Removal of NO2 Under Low-Temperature and Low-Concentration Conditions: A Review of Adsorbents and Adsorption Mechanisms

Abstract

Funding

Research Keywords

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

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Projects

GRF: Selective Gas Adsorption by Single-atom Extraframework Transition Metal Sites Regularly Arranged Inside Porous Crystalline Matrices

GRF: Develop Robust Metal-Organic Frameworks-based Adsorbents for Toxic and Corrosive Gases: Importance of Specific Binding Sites and Adsorption-Desorption Mechanism

Cite this

Adsorption Removal of NO₂ Under Low-Temperature and Low-Concentration Conditions: A Review of Adsorbents and Adsorption Mechanisms