Bamboo-derived Magnetic Carbonaceous Solid Acid Catalyst for the Conversion of Corncob into Furfural Promoted by Warm Water Immersion

文献类型： 外文期刊

第一作者： Li, Huiling

作者： Li, Huiling;Zhu, Yikui;Xu, Xujian;Wu, Aimin;Deng, Xiaomei;Wang, Yuqi;Wu, Aimin

作者机构：

关键词： Bamboo; Magnetic carbonaceous solid acid; Warm water immersion; Hemicelluloses; Furfural

期刊名称：BIORESOURCES （ 影响因子：1.614； 五年影响因子：1.923 ）

ISSN： 1930-2126

年卷期： 2018 年 13 卷 3 期

页码：

收录情况： SCI

摘要： In this study, a bamboo-derived magnetic carbonaceous solid acid catalyst (BC@Fe3O4@SO3H) was synthesized by FeCl3 impregnation, which was followed by incomplete carbonization and -SO3H group functionalization. FT-IR, XRD, and TGA results showed that the prepared catalyst contained -SO3H, -COOH, and phenolic -OH groups. It exhibited poor adsorption ability for the dominating sugars released during the catalytic conversion process. The prepared bamboo-derived magnetic carbonaceous solid acid presented high catalytic activity for depolymerization and conversion of corncob hemicellulose. Warm water immersion under 60 degrees C was able to destroy the complex corncob cell wall structure and accelerated the dissolution of carbohydrates. The highest furfural yield of 54.1 mg/g was obtained from 40 degrees C water-immersed corncob after reacting at 180 degrees C for 30 min. Up to 96.1% of the corncob hemicellulosic backbone sugars were depolymerized to monosaccharides and oligosaccharides in the hydrolysates. The prepared catalyst exhibited a simple magnetic recovery process and high stability. This work provides promising strategies for biomass utilization via renewable materials.

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