MgO/Carbon nanocomposites synthesized in molten salts for catalytic isomerization of glucose to fructose in aqueous media

Yuchao Shao, Dong Yang Zhao, Wenjing Lu, Yuyang Long, Weicheng Zheng, Jun Zhao*, Zhong Ting Hu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Isomerization of glucose into fructose has always been an important step in the biorefining process. This study synthesized a novel Mg-decorated carbonaceous catalyst by molten salt method for the application of glucose isomerization. The morphology of carbon microspheres was formed with high specific surface area and pore volume. The effects of Mg loading, catalyst dosage, reaction temperature, and reaction time were investigated and optimized. The highest fructose yield of 34.58% and fructose selectivity of 81.17% were achieved by the catalyst named Mg(100mg)/Carbon at hydrothermal temperature of 100 °C with reaction time of 1.5–2 h, showing the superiority of the catalyst. The results of recycling tests indicated Mg(100mg)/Carbon has good recyclability and can restore its activity after a simple regeneration. And the possible mechanism of glucose isomerization by Mg(100mg)/Carbon was indicated. This study provided a new method for overcoming the difficulty of high energy barrier required for glucose isomerization in the biorefining process.

Original languageEnglish
Pages (from-to)359-366
Number of pages8
JournalGreen Chemical Engineering
Volume3
Issue number4
Early online date26 Dec 2021
DOIs
Publication statusPublished - Dec 2022

Scopus Subject Areas

  • Process Chemistry and Technology
  • Chemical Engineering (miscellaneous)
  • Catalysis
  • Filtration and Separation

User-Defined Keywords

  • Glucose isomerization
  • Heterogeneous catalyst
  • Hydrothermal
  • Magnesium
  • Molten salt method

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