Metal-organic framework MIL-101 loaded with polymethacrylamide with or without further reduction: Effective and selective CO2 adsorption with amino or amide functionality

Dong Kyu Yoo, Tae Ung Yoon, Youn Sang Bae, Sung Hwa Jhung

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4 Citations (Scopus)

Abstract

In order to improve the performances of a typical/highly porous metal-organic framework (MOF, MIL-101 structure) in CO2 adsorption/capture, methacrylamide was polymerized (to polymethacrylamide or PM) inside of MIL-101 (to get PM@MOF) and further reduced with lithium aluminum hydride. The obtained adsorbents (R-PM24@MOF or PM24@MOF) had highly enhanced performances, compared with the pristine MOF, in CO2 capture both in the adsorption capacity (especially at low pressure of 0.15 atm) and adsorption selectivity (against N2), suggesting the polyamides loading (and subsequent reduction) on MOFs is an effective mean to derive competitive adsorbent for CO2 adsorption/capture. For example, the developed adsorbent (R-PM24@MOF) showed 1.4 mmol/g of adsorbed CO2 (at 0.15 atm and 298 K) and adsorption selectivity (CO2/N2) of 143 at 298 K (CO2/N2 = 0.75/0.15, at 1 atm); which are ~3 and ~10 times to that of pristine MIL-101, respectively. The remarkably enhanced performances could be explained with the introduced functional groups and reduced porosity (for decreased N2 adsorption). Moreover, the adsorbent could be easily recycled, suggesting the potential application in selective adsorption of CO2 from off gas of post-combustions.

Original languageEnglish
Article number122496
JournalChemical Engineering Journal
Volume380
DOIs
Publication statusPublished - 2020 Jan 15

Fingerprint

Amides
Metals
adsorption
Adsorption
metal
Adsorbents
Nylons
MIL-101
lithium
Polyamides
Hydrides
Functional groups
functional group
low pressure
Lithium
aluminum
combustion
Porosity
Gases
porosity

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

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title = "Metal-organic framework MIL-101 loaded with polymethacrylamide with or without further reduction: Effective and selective CO2 adsorption with amino or amide functionality",
abstract = "In order to improve the performances of a typical/highly porous metal-organic framework (MOF, MIL-101 structure) in CO2 adsorption/capture, methacrylamide was polymerized (to polymethacrylamide or PM) inside of MIL-101 (to get PM@MOF) and further reduced with lithium aluminum hydride. The obtained adsorbents (R-PM24@MOF or PM24@MOF) had highly enhanced performances, compared with the pristine MOF, in CO2 capture both in the adsorption capacity (especially at low pressure of 0.15 atm) and adsorption selectivity (against N2), suggesting the polyamides loading (and subsequent reduction) on MOFs is an effective mean to derive competitive adsorbent for CO2 adsorption/capture. For example, the developed adsorbent (R-PM24@MOF) showed 1.4 mmol/g of adsorbed CO2 (at 0.15 atm and 298 K) and adsorption selectivity (CO2/N2) of 143 at 298 K (CO2/N2 = 0.75/0.15, at 1 atm); which are ~3 and ~10 times to that of pristine MIL-101, respectively. The remarkably enhanced performances could be explained with the introduced functional groups and reduced porosity (for decreased N2 adsorption). Moreover, the adsorbent could be easily recycled, suggesting the potential application in selective adsorption of CO2 from off gas of post-combustions.",
author = "Yoo, {Dong Kyu} and Yoon, {Tae Ung} and Bae, {Youn Sang} and Jhung, {Sung Hwa}",
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T1 - Metal-organic framework MIL-101 loaded with polymethacrylamide with or without further reduction

T2 - Effective and selective CO2 adsorption with amino or amide functionality

AU - Yoo, Dong Kyu

AU - Yoon, Tae Ung

AU - Bae, Youn Sang

AU - Jhung, Sung Hwa

PY - 2020/1/15

Y1 - 2020/1/15

N2 - In order to improve the performances of a typical/highly porous metal-organic framework (MOF, MIL-101 structure) in CO2 adsorption/capture, methacrylamide was polymerized (to polymethacrylamide or PM) inside of MIL-101 (to get PM@MOF) and further reduced with lithium aluminum hydride. The obtained adsorbents (R-PM24@MOF or PM24@MOF) had highly enhanced performances, compared with the pristine MOF, in CO2 capture both in the adsorption capacity (especially at low pressure of 0.15 atm) and adsorption selectivity (against N2), suggesting the polyamides loading (and subsequent reduction) on MOFs is an effective mean to derive competitive adsorbent for CO2 adsorption/capture. For example, the developed adsorbent (R-PM24@MOF) showed 1.4 mmol/g of adsorbed CO2 (at 0.15 atm and 298 K) and adsorption selectivity (CO2/N2) of 143 at 298 K (CO2/N2 = 0.75/0.15, at 1 atm); which are ~3 and ~10 times to that of pristine MIL-101, respectively. The remarkably enhanced performances could be explained with the introduced functional groups and reduced porosity (for decreased N2 adsorption). Moreover, the adsorbent could be easily recycled, suggesting the potential application in selective adsorption of CO2 from off gas of post-combustions.

AB - In order to improve the performances of a typical/highly porous metal-organic framework (MOF, MIL-101 structure) in CO2 adsorption/capture, methacrylamide was polymerized (to polymethacrylamide or PM) inside of MIL-101 (to get PM@MOF) and further reduced with lithium aluminum hydride. The obtained adsorbents (R-PM24@MOF or PM24@MOF) had highly enhanced performances, compared with the pristine MOF, in CO2 capture both in the adsorption capacity (especially at low pressure of 0.15 atm) and adsorption selectivity (against N2), suggesting the polyamides loading (and subsequent reduction) on MOFs is an effective mean to derive competitive adsorbent for CO2 adsorption/capture. For example, the developed adsorbent (R-PM24@MOF) showed 1.4 mmol/g of adsorbed CO2 (at 0.15 atm and 298 K) and adsorption selectivity (CO2/N2) of 143 at 298 K (CO2/N2 = 0.75/0.15, at 1 atm); which are ~3 and ~10 times to that of pristine MIL-101, respectively. The remarkably enhanced performances could be explained with the introduced functional groups and reduced porosity (for decreased N2 adsorption). Moreover, the adsorbent could be easily recycled, suggesting the potential application in selective adsorption of CO2 from off gas of post-combustions.

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