Dissolution and Delignification of Bamboo Biomass Using Amino Acid-Based Ionic Liquid

• Main Authors: Man, Zakaria, Muhammad, Nawshad, Bustam, Mohamad Azmi, Abdul Mutalib, M I, C.D., Wilfred, Rafiq, Sikander
• Format: Article
• Published: Springer Science+Business Media, LLC 2011 2011
• Subjects: QD Chemistry
• Online Access: http://eprints.utp.edu.my/6769/1/Dissolution_and_Delignification_of_Bamboo_Biomass.pdf; http://eprints.utp.edu.my/6769/

In the present work, the dissolution of bamboo biomass was tested using a number of ionic liquids synthesized in laboratory. It was observed that one of the synthesized amino acid-based ionic liquids, namely 1-ethyl-3-methylimidazolium glycinate, was capable of dissolving the biomass completely. The dissolved biomass was then regenerated using a reconstitute solvent (acetone/water) and was characterized using Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy. The results were compared to preconditioned bamboo biomass. The regenerated biomass was found to have a more homogenous macrostructure, which indicates that the crystalline form and structure of its cellulose has changed from type É to type ÉÉ during the dissolution and regeneration process.