title: Hydrolysis of ionic cellulose to glucose.
abstract: Hydrolysis of ionic cellulose (IC), 1,3-dimethylimidazolium cellulose phosphite, which could be synthesized from cellulose and dimethylimidazolium methylphosphite ([Dmim][(OCH3)(H)PO2]) ionic liquid, was conducted for the synthesis of glucose. The reaction without catalysts at 150°C for 12h produced glucose with 14.6% yield. To increase the hydrolysis yield, various acid catalysts were used, in which the sulfonated active carbon (AC-SO3H) performed the best catalytic activity in the IC hydrolysis. In the presence of AC-SO3H, the yields of glucose reached 42.4% and 53.9% at the reaction condition of 150°C for 12h and 180°C for 1.5h, respectively; however the yield decreased with longer reaction time due to the degradation of glucose. Consecutive catalyst reuse experiments on the IC hydrolysis demonstrated the catalytic activity of AC-SO3H persisted at least through four successive uses.
authors.affiliation: Clean Energy Research Center, Korea Institute of Science and Technology, Seoul 136-791, South Korea; University of Science and Technology, Deajeon 305-355, South Korea.
authors.forename: Huyen Thanh
authors.initials: HT
authors.lastname: Vo
authors.affiliation: Clean Energy Research Center, Korea Institute of Science and Technology, Seoul 136-791, South Korea.
authors.forename: Vania Tanda
authors.initials: VT
authors.lastname: Widyaya
authors.affiliation: Clean Energy Research Center, Korea Institute of Science and Technology, Seoul 136-791, South Korea; University of Science and Technology, Deajeon 305-355, South Korea.
authors.forename: Jungho
authors.initials: J
authors.lastname: Jae
authors.affiliation: Department of Chemistry, Kyung Hee University, Seoul 130-701, South Korea.
authors.forename: Hoon Sik
authors.initials: HS
authors.lastname: Kim
authors.affiliation: Clean Energy Research Center, Korea Institute of Science and Technology, Seoul 136-791, South Korea; University of Science and Technology, Deajeon 305-355, South Korea. Electronic address: hjlee@kist.re.kr.
authors.forename: Hyunjoo
authors.initials: H
authors.lastname: Lee
mesh_terms: D002384:Catalysis; D002482:Cellulose / Q000737:chemistry*; D002606:Charcoal / Q000737:chemistry; D005662:Furaldehyde / Q000031:analogs & derivatives / Q000032:analysis; D005947:Glucose / Q000032:analysis / Q000737:chemistry*; D006868:Hydrolysis; D007477:Ions; D059027:Recycling; D012995:Solubility; D013451:Sulfonic Acids / Q000737:chemistry; D014867:Water
chemical_list: D007477:Ions; D013451:Sulfonic Acids; D014867:Water; D002606:Charcoal; C008046:5-hydroxymethylfurfural; D002482:Cellulose; D005662:Furaldehyde; D005947:Glucose
keywords: Cellulose; Glucose; Hydrolysis; Ionic liquid; Water-soluble