Sulfonic acid-functionalized k-carrageenan/Cr-based metal-organic framework: An efficient and recyclable catalyst for fructose conversion to 5-hydroxymethylfurfural - Université d'Artois Accéder directement au contenu
Article Dans Une Revue International Journal of Biological Macromolecules Année : 2024

Sulfonic acid-functionalized k-carrageenan/Cr-based metal-organic framework: An efficient and recyclable catalyst for fructose conversion to 5-hydroxymethylfurfural

Résumé

A novel bio-based catalyst was developed by in-situ forming Chromium(III) (Cr)-based metal-organic framework, MIL-101(Cr), in the presence of k-carrageenan (k-Car) and followed by a post-synthetic modification to introduce additional –SO3H functional groups into the composite structure of k-Car/MIL-101(Cr). Different analyses were conducted to confirm the successful catalyst formation. The catalyst performance was evaluated in the solid acid catalyzed dehydration of fructose to 5-hydroxymethylfurfural. The Response Surface Method (RSM) optimization determined that employing 33 wt% of the catalyst at 105 °C for 40 min resulted in a remarkable 97.8 % yield. The catalyst demonstrated suitable recyclability, maintaining its catalytic efficiency over four cycles. Comparative studies with k-Car and the non-sulfonated composite highlighted the superior activity of the catalyst, emphasizing the synergy between the k-Car, MIL-101(Cr) and the influence of –SO3H post-functionalizing on the catalytic performance.

Domaines

Catalyse Chimie
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Dates et versions

hal-04500103 , version 1 (11-03-2024)

Identifiants

Citer

Sima Darvishi, Samahe Sadjadi, Eric Monflier, Abolfazl Heydari, Majid Heravi. Sulfonic acid-functionalized k-carrageenan/Cr-based metal-organic framework: An efficient and recyclable catalyst for fructose conversion to 5-hydroxymethylfurfural. International Journal of Biological Macromolecules, 2024, 264, pp.130555. ⟨10.1016/j.ijbiomac.2024.130555⟩. ⟨hal-04500103⟩
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