Equilibrium and kinetic study of L- and D-valine adsorption in supramolecular-templated chiral mesoporous materials

Yanan Huang, Alfonso E. Garcia-Bennett*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Downloads (Pure)

Abstract

Adsorption kinetic studies are conducted to investigate the potential to use chiral mesoporous materials nanoporous guanosine monophosphate material-1 (NGM-1) and nanoporous folic acid material-1 (NFM-1) for the enantiomeric separation of L- and D-valine. A pseudo-second-order (PSO) kinetic model is applied to test the experimental adsorption equilibrium isotherms, according to both the Langmuir and Freundlich models and the characteristic parameters for each model are determined. The calcined versions of both NGM-1 and NFM-1 fit the Langmuir model with maximum sorption capacities of 0.36 and 0.26 g/g for the preferred adsorption enantiomers, D-valine and L-valine, respectively. Experimental results and the analysis of adsorption models suggest a strong adsorbate-adsorbent interaction, and the formation of a monolayer of tightly packed amino acid on the internal mesopore surface for the preferred enantiomers.

Original languageEnglish
Article number338
Number of pages13
JournalMolecules (Basel, Switzerland)
Volume26
Issue number2
DOIs
Publication statusPublished - 2 Jan 2021

Bibliographical note

Copyright the Author(s) 2021. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • adsorption
  • chiral mesoporous silica
  • enantiomeric separation
  • kinetic

Fingerprint Dive into the research topics of 'Equilibrium and kinetic study of L- and D-valine adsorption in supramolecular-templated chiral mesoporous materials'. Together they form a unique fingerprint.

Cite this