| Issue |
E3S Web Conf.
Volume 639, 2025
The 11th International Conference on Energy Materials and Environmental Engineering (ICEMEE 2025)
|
|
|---|---|---|
| Article Number | 01011 | |
| Number of page(s) | 5 | |
| Section | Environmental Engineering and Applications of New Materials | |
| DOI | https://doi.org/10.1051/e3sconf/202563901011 | |
| Published online | 17 July 2025 | |
Researching the Mechanism Underlying the Low Cellulose Pretreatment Efficiency at High DMSO/Ionic Liquid Ratios
College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
* Corresponding author: jmyang@njtech.edu.cn
High DMSO/[Amim]Cl ratios impair cellulose pretreatment efficiency. In DMSO/[Amim]Cl systems (0–60 wt% DMSO), cellulose solubility and saccharification rates declined gradually (0–50 wt%) then sharply (50–60 wt%). Structural changes intensified at 50–60 wt% DMSO, with greater decrystallization (20.93% vs 2.85%) and hydrophobicity (23.08° vs 1.86°) reductions. SEM revealed denser, smoother surfaces at 60 wt% DMSO, reducing accessibility. Kamlet-Taft analysis showed nonlinear decreases in hydrogen bond acidity/basicity (α/β: 0.59/1.25 → 0.24/0.73), suggesting weakened hydrogen bond disruption at 60 wt% DMSO, lowering pretreatment efficiency.
© The Authors, published by EDP Sciences, 2025
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