Strategies for enhancing catalytic efficiency and stability of MgO-biochar catalysts in glucose isomerization to fructose

Glucose isomerization to fructose is crucial for its application in food industry and biorefinery. Herein, strategies for developing MgO-biochar catalysts to convert glucose to fructose were explored and optimized with an emphasis on the influence of synthesis method on the stability of the catalyst...

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Bibliographic Details
Published in:Industrial crops and products 2024-01, Vol.207, p.117769, Article 117769
Main Authors: Wang, Peixin, Kumar, Reeti, Xue, Wenhua, Luo, Liwen, Varjani, Sunita, Wong, Jonathan Woon-Chung, Zhao, Jun
Format: Article
Language:English
Subjects:
biochar
biorefining
carbon
catalysts
catalytic activity
food industry
fructose
glucose
isomerization
magnesium
nanoparticles
species
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Summary:Glucose isomerization to fructose is crucial for its application in food industry and biorefinery. Herein, strategies for developing MgO-biochar catalysts to convert glucose to fructose were explored and optimized with an emphasis on the influence of synthesis method on the stability of the catalyst. Despite the favorable activity exhibited by all catalysts, the embedding of MgO on the surface, loading onto porous structures, or incorporating into a carbon framework significantly diminished the catalytic activity and stability of magnesium species. The one-step synthesis approach facilitates the uniform distribution of MgO nanoparticles on the biochar matrix, enhancing their interactions and preventing Mg leaching compared to MgO-biochar prepared through two-step methods. After optimization, fructose yield exceeding 26% and a selectivity of 91% were obtained under mild conditions of 80 ℃ for 2 h in water. In summary, the effective anchoring of MgO on the biochar exhibited dual effects for enhanced catalytic activity and stability.
ISSN:0926-6690
DOI:10.1016/j.indcrop.2023.117769