Effect of ionic liquid on sugar-aromatic separation selectivity by metal-organic framework NU-1000 in aqueous solution

Mizuho Yabushita, Gabriella Papa, Peng Li, Atsushi Fukuoka*, Omar K. Farha, Blake A. Simmons, Alexander Katz

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Leveraging on previously observed selectivity in separating sugars from aromatics in aqueous solution via adsorption to metal-organic framework NU-1000, we investigate the effect of ionic liquid (IL) cosolvent on this separation. Four ILs (cholinium lysinate, cholinium phosphate, ethanolamine acetate, and ethanolamine phosphate) were investigated at concentrations of 0.4, 10, and 20 vol%. When treated with an aqueous IL mixture containing glucose, xylose, coumaric acid, and ferulic acid, highly selective sugar-aromatic separations were observed for NU-1000 at 0.4 vol% for both cholinium lysinate and ethanolamine acetate. In contrast, amorphous carbon under similar conditions lacked selectivity, adsorbing similar amounts of aromatics to NU-1000 while also adsorbing ≥96 mg gadsorbent−1 of sugars. These results parallel those previously observed in pure aqueous solution. At higher concentrations of IL, however, NU-1000 displayed ≥56 mg gadsorbent−1 of sugar uptakes for all ILs, with the largest sugar uptakes being observed for ethanolamine acetate. This mirrored results when treating NU-1000 with sugars and IL in aqueous solution, in the absence of aromatics, in a way that depended non-monotonically on the IL concentration. We implicate coadsorption of IL onto NU-1000 as the reason why selectivity in the presence of IL is lower than the selectivity in pure aqueous solution.

Original languageEnglish (US)
Article number106189
JournalFuel Processing Technology
Volume197
DOIs
StatePublished - Jan 2020

Fingerprint

Ionic Liquids
Ionic liquids
Sugars
Ethanolamines
Metals
ferulic acid
Acetates
Ethanolamine
Phosphates
Coumaric Acids
Xylose
Acids
Amorphous carbon
Glucose
Adsorption

Keywords

  • Adsorption
  • Biomass
  • Ionic liquids
  • Metal-organic framework
  • Molecular recognition
  • Separation

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

Cite this

Yabushita, Mizuho ; Papa, Gabriella ; Li, Peng ; Fukuoka, Atsushi ; Farha, Omar K. ; Simmons, Blake A. ; Katz, Alexander. / Effect of ionic liquid on sugar-aromatic separation selectivity by metal-organic framework NU-1000 in aqueous solution. In: Fuel Processing Technology. 2020 ; Vol. 197.
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abstract = "Leveraging on previously observed selectivity in separating sugars from aromatics in aqueous solution via adsorption to metal-organic framework NU-1000, we investigate the effect of ionic liquid (IL) cosolvent on this separation. Four ILs (cholinium lysinate, cholinium phosphate, ethanolamine acetate, and ethanolamine phosphate) were investigated at concentrations of 0.4, 10, and 20 vol{\%}. When treated with an aqueous IL mixture containing glucose, xylose, coumaric acid, and ferulic acid, highly selective sugar-aromatic separations were observed for NU-1000 at 0.4 vol{\%} for both cholinium lysinate and ethanolamine acetate. In contrast, amorphous carbon under similar conditions lacked selectivity, adsorbing similar amounts of aromatics to NU-1000 while also adsorbing ≥96 mg gadsorbent−1 of sugars. These results parallel those previously observed in pure aqueous solution. At higher concentrations of IL, however, NU-1000 displayed ≥56 mg gadsorbent−1 of sugar uptakes for all ILs, with the largest sugar uptakes being observed for ethanolamine acetate. This mirrored results when treating NU-1000 with sugars and IL in aqueous solution, in the absence of aromatics, in a way that depended non-monotonically on the IL concentration. We implicate coadsorption of IL onto NU-1000 as the reason why selectivity in the presence of IL is lower than the selectivity in pure aqueous solution.",
keywords = "Adsorption, Biomass, Ionic liquids, Metal-organic framework, Molecular recognition, Separation",
author = "Mizuho Yabushita and Gabriella Papa and Peng Li and Atsushi Fukuoka and Farha, {Omar K.} and Simmons, {Blake A.} and Alexander Katz",
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Effect of ionic liquid on sugar-aromatic separation selectivity by metal-organic framework NU-1000 in aqueous solution. / Yabushita, Mizuho; Papa, Gabriella; Li, Peng; Fukuoka, Atsushi; Farha, Omar K.; Simmons, Blake A.; Katz, Alexander.

In: Fuel Processing Technology, Vol. 197, 106189, 01.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of ionic liquid on sugar-aromatic separation selectivity by metal-organic framework NU-1000 in aqueous solution

AU - Yabushita, Mizuho

AU - Papa, Gabriella

AU - Li, Peng

AU - Fukuoka, Atsushi

AU - Farha, Omar K.

AU - Simmons, Blake A.

AU - Katz, Alexander

PY - 2020/1

Y1 - 2020/1

N2 - Leveraging on previously observed selectivity in separating sugars from aromatics in aqueous solution via adsorption to metal-organic framework NU-1000, we investigate the effect of ionic liquid (IL) cosolvent on this separation. Four ILs (cholinium lysinate, cholinium phosphate, ethanolamine acetate, and ethanolamine phosphate) were investigated at concentrations of 0.4, 10, and 20 vol%. When treated with an aqueous IL mixture containing glucose, xylose, coumaric acid, and ferulic acid, highly selective sugar-aromatic separations were observed for NU-1000 at 0.4 vol% for both cholinium lysinate and ethanolamine acetate. In contrast, amorphous carbon under similar conditions lacked selectivity, adsorbing similar amounts of aromatics to NU-1000 while also adsorbing ≥96 mg gadsorbent−1 of sugars. These results parallel those previously observed in pure aqueous solution. At higher concentrations of IL, however, NU-1000 displayed ≥56 mg gadsorbent−1 of sugar uptakes for all ILs, with the largest sugar uptakes being observed for ethanolamine acetate. This mirrored results when treating NU-1000 with sugars and IL in aqueous solution, in the absence of aromatics, in a way that depended non-monotonically on the IL concentration. We implicate coadsorption of IL onto NU-1000 as the reason why selectivity in the presence of IL is lower than the selectivity in pure aqueous solution.

AB - Leveraging on previously observed selectivity in separating sugars from aromatics in aqueous solution via adsorption to metal-organic framework NU-1000, we investigate the effect of ionic liquid (IL) cosolvent on this separation. Four ILs (cholinium lysinate, cholinium phosphate, ethanolamine acetate, and ethanolamine phosphate) were investigated at concentrations of 0.4, 10, and 20 vol%. When treated with an aqueous IL mixture containing glucose, xylose, coumaric acid, and ferulic acid, highly selective sugar-aromatic separations were observed for NU-1000 at 0.4 vol% for both cholinium lysinate and ethanolamine acetate. In contrast, amorphous carbon under similar conditions lacked selectivity, adsorbing similar amounts of aromatics to NU-1000 while also adsorbing ≥96 mg gadsorbent−1 of sugars. These results parallel those previously observed in pure aqueous solution. At higher concentrations of IL, however, NU-1000 displayed ≥56 mg gadsorbent−1 of sugar uptakes for all ILs, with the largest sugar uptakes being observed for ethanolamine acetate. This mirrored results when treating NU-1000 with sugars and IL in aqueous solution, in the absence of aromatics, in a way that depended non-monotonically on the IL concentration. We implicate coadsorption of IL onto NU-1000 as the reason why selectivity in the presence of IL is lower than the selectivity in pure aqueous solution.

KW - Adsorption

KW - Biomass

KW - Ionic liquids

KW - Metal-organic framework

KW - Molecular recognition

KW - Separation

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