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- Title
Efficient hydrolyzation of cellulose in ionic liquid by novel sulfonated biomass-based catalysts.
- Authors
Bai, Yuan-Yuan; Xiao, Ling-Ping; Sun, Run-Cang
- Abstract
A green and effective approach for comprehensive hydrolyzation of cellulose has been described. Several carbon-based solid acids were successfully prepared using various biomass (glucose, microcrystalline cellulose, bamboo, and rice husk) and used to catalyze cellulose hydrolysis. The acid groups (-SOH and -COOH) were successfully introduced onto the surface of the carbon-based solid acid catalysts as evidenced by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The structure of the prepared catalysts was characterized by scanning electron microscope and X-ray diffraction. The catalysts showed excellent catalytic performance for hydrolysis of cellulose. To improve the reaction efficiency, ball-milling and solubilization in ionic liquids of cellulose were adopted. A maximum total reducing sugar yield of 81.8 % was obtained in ionic liquid 1-butyl-3-methyl imidazolium chloride at 125 °C for 90 min when the water addition was 10 % of ionic liquid. This study provided a promising strategy to synthesize solid acids from lignocelluloses, which were further used to convert biomass into biofuels and platform chemicals.
- Subjects
CELLULOSE; IONIC liquids; SULFONATION; BIOMASS; CATALYSTS; HYDROLYSIS
- Publication
Cellulose, 2014, Vol 21, Issue 4, p2327
- ISSN
0969-0239
- Publication type
Article
- DOI
10.1007/s10570-014-0287-2