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Synthesis of novel functional ionic liquids and their application in biomass

文献类型: 外文期刊

作者: Han, Hui-Ying 1 ; Geng, Xin 1 ; Zhang, Bi-Xian 3 ; Meng, Jing 1 ; Liu, Xin 1 ; He, Xin-Miao 2 ; Liu, Zi-Guang 2 ; Gao, Yu 1 ;

作者机构: 1.Northeast Agr Univ, Coll Life Sci, Harbin 150030, Heilongjiang, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Combining Farming & Anim Husb, Harbin 150086, Heilongjiang, Peoples R China

3.Heilongjiang Acad Agr Sci, Harbin 150086, Heilongjiang, Peoples R China

期刊名称:RSC ADVANCES ( 影响因子:3.361; 五年影响因子:3.39 )

ISSN:

年卷期: 2019 年 9 卷 51 期

页码:

收录情况: SCI

摘要: A series of dicationic ionic liquids (ILs) including [PF6][(PYR)C-4(MIM)][Cl], [PF6][(PYR)C-4(PYR)][Cl], [PF6][(PYR)C-5(MIM)][Cl], and [PF6][(PYR)C-5(PYR)][Cl], and monocationic ILs including [(PYR)C4Cl][PF6], [(PYR)C5Cl][PF6], [(MIM)C2COOH][PF6] and [(PYR)C2COOH][PF6] were synthesized. Their thermal stability and melting points were determined. Their solubility with organic solvents and the miscibility with water were investigated. These functional ILs are hydrophilic at high temperatures and they are hydrophobic at low temperatures, which enable the effective isolation of the resulting reducing sugar. High yields of reducing sugar were obtained for corn stalk after 8 h (20.73%) and potato starch after 6 h (72.50%) by the treatment with the mixture of [PF6][(PYR)C-4(PYR)][Cl] and [(PYR)C2COOH][PF6]. The reuse of dicationic and monocationic ILs was successfully performed and no significant reduction in yields of reducing sugar was observed. These functional ILs have important implications in the design of homogeneous and heterogeneous systems with water and organic solvents, which could be used to satisfy some specific applications.

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