期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 3, 期 5, 页码 871-879出版社
AMER CHEMICAL SOC
DOI: 10.1021/sc5008412
关键词
Sustainable chemistry; Cellulose; 5-Hydroxymethylfurfural; Bronsted acid; Polymer nanotubes; Adjusted wettability
资金
- National Natural Science Foundation of China [21107037, 21176107, 21306013]
- Natural Science Foundation of Jiangsu Province [BK2011461, BK2011514]
- National Postdoctoral Science Foundation [2013M530240]
- Postdoctoral Science Foundation funded Project of Jiangsu Province [1202002B]
- Programs of Senior Talent Foundation of Jiangsu University [12JDG090]
Employing renewable and widely available feedstock of cellulose as a raw material for 5-hydroxymethylfurfural (HMF) production opens up the possibility of sustainable biorefinery schemes that do not compete with the food supply. In this work, novel and efficient Bronsted acidic polymer nanotubes were successfully prepared by chemical conjugating grafting -SO3H groups onto the surface of polydivinylbenzene (PDVB) nanotubes, which were derived from cationic polymerization of divinylbenzene. By simply adjusting the grafting amounts of hydrophilic -SO3H groups, catalysts with varied hydrophobic and hydrophilic surface wettability (i.e., catalyst-110 degrees and catalyst-10 degrees) could be obtained. It was demonstrated that as-prepared catalyst-10 degrees possessed the higher strong (143 mu mol g(-1)), very strong (614 mu mol g(-1)), and total acidity (786 mu mol g(-1)) than those of catalyst-110 degrees. Besides, the catalytic performance of the synthesized catalyst-110 degrees and catalyst-10 degrees were investigated and compared for the conversion of cellulose to HMF in an ionic liquid (i.e., 1-ethyl-3-methyl-imidazolium chloride, [EMIM]-Cl) system. Particularly, catalyst-110 degrees exhibited the highest HMF yield of 34.6% on a molar basis, which was comparable with that of catalyst-10 degrees (i.e., 37.1%), indicating that its hydrophobic nature was beneficial for decreasing side-reaction of HMF which tend to convert to some other byproducts during the very one-pot reaction. Furthermore, both catalysts can be easily recovered and reused for at least four times without significant loss of their catalytic activities. This work was the continue efforts for fabrication and application solid catalyst for excellent conversion of one-pot cellulose to HMF.
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