Ionothermal carbonization of sugarcane bagasse in imidazolium tetrachloroferrate ionic liquids: effect of the cation on textural and morphological properties

The valorization of abundant agrowastes into chemicals and advanced materials is of key importance in the context of the circular bioeconomy and biorefinery. Herein, we report the ionothermal carbonization (ITC) of sugarcane bagasse, a fibrous residue made of lignocellulose, to engineer advanced car...

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Bibliographic Details
Published in:Green chemistry : an international journal and green chemistry resource : GC 2023-05, Vol.25 (9), p.3533-3542
Main Authors: Aldroubi, Soha, El-Sakhawy, Mohamed, Kamel, Samir, Hesemann, Peter, Mehdi, Ahmad, Brun, Nicolas
Format: Article
Language:English
Subjects:
Agricultural wastes
Bagasse
Biorefineries
Carbon dioxide
Carbonaceous materials
Carbonization
Cations
Chemical Sciences
Green chemistry
Ionic liquids
Lignocellulose
Polymers
Sugarcane
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Summary:The valorization of abundant agrowastes into chemicals and advanced materials is of key importance in the context of the circular bioeconomy and biorefinery. Herein, we report the ionothermal carbonization (ITC) of sugarcane bagasse, a fibrous residue made of lignocellulose, to engineer advanced carbonaceous materials, namely ionochars. We prepared a series of imidazolium tetrachloroferrate ionic liquids (IL) bearing modular substituents, e.g. , alkyl chains with different lengths or benzyl groups. The effect of the cation on both textural and morphological properties is highlighted. Ionochars with high specific surface area (up to 800 m 2 g −1 ), tuneable pore volume (up to 0.8 cm 3 g −1 ), singular nanostructures and adjustable CO 2 uptake/retention were obtained. We demonstrate the possibility to control both textural and morphological properties of ionochars through cation engineering for the ionothermal carbonization of sugarcane bagasse.
ISSN:1463-9262
1463-9270
DOI:10.1039/d3gc00300k