SYNTHESIS AND CHARACTERIZATION OF NEW IONIC LIQUIDS AND ITS POTENTIAL APPLICATIONS FOR BAMBOO BIOMASS
After complete dissolution of bamboo in [Emim]Gly, the separation of bamboo constituents into cellulose rich-material, hemicelluloses and lignin was possible, via selective solvent precipitation method using acetone/water mixture (7 /3 v/v) and ethanol. The individual constituent was confirmed...
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| Format: | Thesis |
| Language: | English |
| Published: |
2012
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| Subjects: | |
| Online Access: | http://utpedia.utp.edu.my/id/eprint/21307/1/2012%20-CHEMICAL%20-%20SYNTHESIS%20AND%20CHARACTERIZATION%20OF%20NEW%20IONIC%20LIQUIDS%20AND%20ITS%20POTENTIAL%20APPLICATION%20FOR%20BAMBOO%20BIAMASS%20-%20NAWSHAD%20MUHAMMAD.pdf http://utpedia.utp.edu.my/id/eprint/21307/ |
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| Summary: | After complete dissolution of bamboo in [Emim]Gly, the separation of bamboo
constituents into cellulose rich-material, hemicelluloses and lignin was possible, via
selective solvent precipitation method using acetone/water mixture (7 /3 v/v) and
ethanol. The individual constituent was confirmed by FTIR, NMR, HPLC, TGA and
CHNS analysis. In terms of efficiency of lignin extraction, the nitrile-based ionic
liquids containing Cl perform well compared to [Bmim]Cl. The ionic liquids in the
order of increasing extraction efficiency are [Bmim]Cl < [CzCNBim]Cl <
[CzCNHEim]Cl < [CzCNAim]Cl < [CzCNBzim]Cl. The increase in heating
temperature and time increases lignin extraction, while the increase in particle size
and amount of sample loading reduces the extraction efficiency of nitrile-based ionic
liquids. |
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