Issue 9, 2023

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

Abstract

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 m2 g−1), tuneable pore volume (up to 0.8 cm3 g−1), singular nanostructures and adjustable CO2 uptake/retention were obtained.

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

Supplementary files

Article information

Article type
Paper
Submitted
27 Jan 2023
Accepted
05 Apr 2023
First published
06 Apr 2023
This article is Open Access
Creative Commons BY-NC license

Green Chem., 2023,25, 3533-3542

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

S. Aldroubi, M. El-Sakhawy, S. Kamel, P. Hesemann, A. Mehdi and N. Brun, Green Chem., 2023, 25, 3533 DOI: 10.1039/D3GC00300K

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