1,1,3,3-Tetramethylguanidinium hydrogen sulphate (TMG·HSO4) ionic liquid in carbon dioxide enriched water: A highly efficient acidic catalytic system for the hydrolysis of cellulose

Subodh Kumar, Raj Kumar Singh, Suman L. Jain

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

1,1,3,3-tetramethylguanidinium hydrogen sulphate (TMG·HSO4) ionic liquid was used for the hydrolysis of cellulose using water enriched with carbon dioxide as the reaction media. The addition of carbon dioxide enhanced the reaction rates significantly and afforded glucose and total reducing sugars in 26 and 72% yields, respectively. The addition of carbon dioxide might play a dual role, it reduces the viscosity of the medium for better mass transfer and also reacts with water to give carbonic acid which subsequently dissociates to the hydronium ion and enhances the acidity of the medium. The developed ionic liquid was easily recovered and reused for a subsequent four runs without any significant change in the catalytic efficiency.

Original languageEnglish
Pages (from-to)58238-58242
Number of pages5
JournalRSC Advances
Volume4
Issue number102
DOIs
StatePublished - 28 Oct 2014
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry 2014.

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