CO2capture enhancement by encapsulation of nanoparticles in metal-organic frameworks suspended in physical absorbents

Ronghuan Xu; Hyungseop Ahn; Seonggon Kim; Jae Won Lee; Yong Tae Kang

doi:10.1016/j.jcou.2023.102397

CO₂capture enhancement by encapsulation of nanoparticles in metal-organic frameworks suspended in physical absorbents

Ronghuan Xu, Hyungseop Ahn, Seonggon Kim, Jae Won Lee, Yong Tae Kang

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

In this study, CO2 nanoabsorbents composed of encapsulated Fe3O4 nanoparticles in metal-organic frameworks (MOFs) and methanol, are developed to overcome the limitations of conventional CO2 sorbents. The polyvinylpyrrolidone-functionalized Fe3O4 nanoparticles encapsulated in (Zn)MOF-74 [Zn2(DOBDC), DOBDC = 2, 5-dihydroxyterephthalic acid] are dispersed in the methanol. Compared with pure methanol, CO2 absorption and regeneration performances of Fe3O4 @ (Zn)MOF-74/methanol are improved by 13.07% and 16.25% (Abs.: 0.84 g-CO2/L-solvent and reg.: 0.77 g-CO2/L-solvent), respectively, at optimum conditions of 0.01 wt%. Cyclic stability experiments exhibit that the performance of Fe3O4 @ (Zn)MOF-74/methanol can preserve 93.76% of their initial capacities. It is finally concluded that the absorption performance is improved by hydrodynamic and shuttle effects while the CO2 sorbent regeneration performance is enhanced by metal-organic heat carriers (MOHCs) and nucleation from the surface of nanoparticles by introducing Fe3O4 @ (Zn)MOF-74 nanoparticles.

Original language	English
Article number	102397
Journal	Journal of CO2 Utilization
Volume	69
DOIs	https://doi.org/10.1016/j.jcou.2023.102397
Publication status	Published - 2023 Mar

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea ( NRF ) grant funded by the Korea government ( MSIP ) (Grant number: 2022R1A2B5B03002421 and 2020R1A5A1018153 ).

Publisher Copyright:
© 2023 The Authors.

Keywords

COabsorption
COregeneration
Encapsulation
Functionalized FOnanoparticles
Metal-organic frameworks

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Waste Management and Disposal
Process Chemistry and Technology

Access to Document

10.1016/j.jcou.2023.102397

Cite this

@article{327fe881f7a647b38c3177fb02edfa87,

title = "CO2capture enhancement by encapsulation of nanoparticles in metal-organic frameworks suspended in physical absorbents",

abstract = "In this study, CO2 nanoabsorbents composed of encapsulated Fe3O4 nanoparticles in metal-organic frameworks (MOFs) and methanol, are developed to overcome the limitations of conventional CO2 sorbents. The polyvinylpyrrolidone-functionalized Fe3O4 nanoparticles encapsulated in (Zn)MOF-74 [Zn2(DOBDC), DOBDC = 2, 5-dihydroxyterephthalic acid] are dispersed in the methanol. Compared with pure methanol, CO2 absorption and regeneration performances of Fe3O4 @ (Zn)MOF-74/methanol are improved by 13.07% and 16.25% (Abs.: 0.84 g-CO2/L-solvent and reg.: 0.77 g-CO2/L-solvent), respectively, at optimum conditions of 0.01 wt%. Cyclic stability experiments exhibit that the performance of Fe3O4 @ (Zn)MOF-74/methanol can preserve 93.76% of their initial capacities. It is finally concluded that the absorption performance is improved by hydrodynamic and shuttle effects while the CO2 sorbent regeneration performance is enhanced by metal-organic heat carriers (MOHCs) and nucleation from the surface of nanoparticles by introducing Fe3O4 @ (Zn)MOF-74 nanoparticles.",

keywords = "COabsorption, COregeneration, Encapsulation, Functionalized FOnanoparticles, Metal-organic frameworks",

author = "Ronghuan Xu and Hyungseop Ahn and Seonggon Kim and Lee, {Jae Won} and Kang, {Yong Tae}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea ( NRF ) grant funded by the Korea government ( MSIP ) (Grant number: 2022R1A2B5B03002421 and 2020R1A5A1018153 ). Publisher Copyright: {\textcopyright} 2023 The Authors.",

year = "2023",

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doi = "10.1016/j.jcou.2023.102397",

language = "English",

volume = "69",

journal = "Journal of CO2 Utilization",

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publisher = "Elsevier BV",

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T1 - CO2capture enhancement by encapsulation of nanoparticles in metal-organic frameworks suspended in physical absorbents

AU - Xu, Ronghuan

AU - Ahn, Hyungseop

AU - Kim, Seonggon

AU - Lee, Jae Won

AU - Kang, Yong Tae

N1 - Funding Information: This work was supported by the National Research Foundation of Korea ( NRF ) grant funded by the Korea government ( MSIP ) (Grant number: 2022R1A2B5B03002421 and 2020R1A5A1018153 ). Publisher Copyright: © 2023 The Authors.

PY - 2023/3

Y1 - 2023/3

N2 - In this study, CO2 nanoabsorbents composed of encapsulated Fe3O4 nanoparticles in metal-organic frameworks (MOFs) and methanol, are developed to overcome the limitations of conventional CO2 sorbents. The polyvinylpyrrolidone-functionalized Fe3O4 nanoparticles encapsulated in (Zn)MOF-74 [Zn2(DOBDC), DOBDC = 2, 5-dihydroxyterephthalic acid] are dispersed in the methanol. Compared with pure methanol, CO2 absorption and regeneration performances of Fe3O4 @ (Zn)MOF-74/methanol are improved by 13.07% and 16.25% (Abs.: 0.84 g-CO2/L-solvent and reg.: 0.77 g-CO2/L-solvent), respectively, at optimum conditions of 0.01 wt%. Cyclic stability experiments exhibit that the performance of Fe3O4 @ (Zn)MOF-74/methanol can preserve 93.76% of their initial capacities. It is finally concluded that the absorption performance is improved by hydrodynamic and shuttle effects while the CO2 sorbent regeneration performance is enhanced by metal-organic heat carriers (MOHCs) and nucleation from the surface of nanoparticles by introducing Fe3O4 @ (Zn)MOF-74 nanoparticles.

AB - In this study, CO2 nanoabsorbents composed of encapsulated Fe3O4 nanoparticles in metal-organic frameworks (MOFs) and methanol, are developed to overcome the limitations of conventional CO2 sorbents. The polyvinylpyrrolidone-functionalized Fe3O4 nanoparticles encapsulated in (Zn)MOF-74 [Zn2(DOBDC), DOBDC = 2, 5-dihydroxyterephthalic acid] are dispersed in the methanol. Compared with pure methanol, CO2 absorption and regeneration performances of Fe3O4 @ (Zn)MOF-74/methanol are improved by 13.07% and 16.25% (Abs.: 0.84 g-CO2/L-solvent and reg.: 0.77 g-CO2/L-solvent), respectively, at optimum conditions of 0.01 wt%. Cyclic stability experiments exhibit that the performance of Fe3O4 @ (Zn)MOF-74/methanol can preserve 93.76% of their initial capacities. It is finally concluded that the absorption performance is improved by hydrodynamic and shuttle effects while the CO2 sorbent regeneration performance is enhanced by metal-organic heat carriers (MOHCs) and nucleation from the surface of nanoparticles by introducing Fe3O4 @ (Zn)MOF-74 nanoparticles.

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KW - Encapsulation

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