Journal
RSC ADVANCES
Volume 3, Issue 45, Pages 23228-23235Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra43413c
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Funding
- Fundamental Research Funds for the Central Universities [1124020512, 1107020524]
- NSF of China [21103087, 21273107]
- Natural Science Foundation of Jiangsu Province [SBK201340143]
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The conversion of sugars to chemicals in aqueous-phase is especially important for the utilization of biomass. In current work, zirconium phosphate obtained by hydrothermal methods using organic amines as templates has been examined as a solid catalyst for the dehydration reaction of xylose to furfural in aqueous-phase. The use of dodecylamine and hexadecylamine in the synthesis process results in mesoporous zirconium phosphate with uniform pore width of similar to 2 nm and in morphology of nanoaggregates, which is characterized by powder X-ray diffraction, N-2 isothermal sorption, NH3 temperature-programmed desorption, FT-IR, and P-31 MAS NMR spectroscopy. When used as a catalyst for xylose dehydration to furfural in aqueous-phase, the mesoporous zirconium phosphate presents excellent catalytic performance with high conversions up to 96% and high furfural yields up to 52% in a short time of reaction. Moreover, the catalyst is easily regenerated by thermal treatment in air and shows quite stable activity. The open structure with numerous active sites of the Bronsted/Lewis acid sites is responsible for the high catalytic efficiency of mesoporous zirconium phosphate.
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