Chemical Research in Chinese Universities ›› 2025, Vol. 41 ›› Issue (3): 611-619.doi: 10.1007/s40242-025-5024-x

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A Novel Recyclable MnFe2O4 Catalytic Pretreatment for Enhancing the Synthesis of Bioethanol and Biofuel

JIANG Yu, ZHANG Rui, ZHU Can, NI Yuming, HUANG Nan, TANG Wanyun, FAN Minghui, LI Quanxin   

  1. Department of Chemical Physics, University of Science & Technology of China, Hefei 230026, P. R. China
  • Received:2025-02-08 Revised:2025-03-18 Online:2025-06-01 Published:2025-05-27
  • Contact: LI Quanxin,E-mail:liqx@ustc.edu.cn E-mail:liqx@ustc.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (No. U21A20288).

Abstract: Developing green and efficient way for producing biofuel and high-value chemical from lignocellulosic biomass is of great significance for promoting green chemistry and sustainable development. Present work intended to explore a novel recyclable MnFe2O4 catalytic pre-treatment means to strengthen the synthesis of bioethanol and biofuel. The MnFe2O4 catalytic pre-treatment raised saccharification of lignocellulosic biomass, which was beneficial for the formation of ethanol intermediate and the production of biofuel. After MnFe2O4 catalytic pre-treatment, ethanol yield reached 34.2%. High ethanol conversion (93.8%) and good jet fuel selectivity (63.3%) were achieved in synthesizing biofuel process. According to catalyst’s characterization, lignocellulose’s characterization as well as radical’s detection, probable function/mechanism of MnFe2O4 catalytic pre-treatment was proposed. The MnFe2O4 catalyst facilitated the formation of hydroxyl radicals, thereby enhancing the depolymerization of lignocellulose and subsequent fuel synthesis. Considering that MnFe2O4 catalytic pre-treatment can be conducted by utilizing recyclable MnFe2O4 catalyst under gentle condition, this technology may provide an environmental-friendly pre-treatment means for facilitating the transformation of lignocellulose into biofuel.

Key words: MnFe2O4 catalyst, Lignocellulose, Bioethanol, Biofuel, Catalytic pretreatment