Abstract:
:Three environmental-benign and low-cost carbon-based solid acid catalysts containing -SO3H, -COOH and phenolic -OH groups were prepared and used for the conversion of glucose into 5-hydroxymethylfurfural (HMF) in ionic liquid 1-butyl-3-methylimidazolium chloride ([BMIM]Cl). The results demonstrated that cellulose-derived carbonaceous catalyst (CCC) possessed the highest catalytic activity, which resulted in 46.4% HMF yield at 160°C for only 15 min. In addition, the reaction kinetics for the conversion of glucose into HMF over CCC was fitted with the first-order rate equation. The slightly-deactivated CCC after four successive reaction runs could be easily regenerated by a simple carbonization and sulfonation process. More gratifyingly, the combination of CCC and [BMIM]Cl were confirmed to be suitable for converting other carbohydrates such as fructose, sucrose, maltose, cellobiose, starch and cellulose into HMF. Particularly, a plausible mechanism involving hydrolysis, isomerization and dehydration for the conversion of carbohydrates into HMF was also proposed.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Hu L,Zhao G,Tang X,Wu Z,Xu J,Lin L,Liu Sdoi
10.1016/j.biortech.2013.09.016subject
Has Abstractpub_date
2013-11-01 00:00:00pages
501-7eissn
0960-8524issn
1873-2976pii
S0960-8524(13)01439-9journal_volume
148pub_type
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