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Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids
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Constructing protic porous ionic liquids via one-step coupling neutralization reaction for extraction-adsorption
Jinrui Zhang1, Jie Yin1, Xinmiao Zhang1
1School of the Environment and Safety Engineering & Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China.
Journal of Colloid and Interface Science
|September 8, 2023
Summary
A new one-step synthesis method enables the creation of functionalized porous ionic liquids (PILs). These novel materials show improved extraction efficiency and performance in coupled desulfurization, offering a simpler route to advanced PILs.
Area of Science:
- Materials Science
- Chemical Engineering
- Nanotechnology
Background:
- Porous ionic liquids (PILs) combine liquid fluidity with solid porosity, enabling applications in separation, catalysis, and energy storage.
- Current limitations in PIL design and synthesis hinder their widespread development and application.
- Functionalized PILs are desirable for tailored performance in specific chemical processes.
Purpose of the Study:
- To develop a novel, simplified method for synthesizing functionalized protic porous ionic liquids (PPILs).
- To investigate the impact of functional group positioning on PPIL properties and performance.
- To evaluate the efficacy of synthesized PPILs in extraction-adsorption coupled desulfurization (EADS).
Main Methods:
- One-step coupling neutralization reaction (OCNR) for controllable synthesis of functionalized PPILs.
- Synthesis of three PPIL types by tuning corona amino functional group positions.
- Evaluation of extraction efficiency and EADS performance.
- Density functional theory (DFT) calculations to elucidate interaction mechanisms.
Main Results:
- Successful synthesis of three distinct functionalized PPILs using the OCNR method.
- Demonstrated crucial role of protic ion pairs in forming low-viscosity, pure liquid PPILs.
- Achieved a significant increase in extraction efficiency from 38.5% to 51.9% with PPILs.
- Exhibited good EADS performance attributed to CH···π and hydrogen bonding interactions.
Conclusions:
- The OCNR method offers a simplified and controllable approach for synthesizing functionalized PPILs.
- Protic ion pairs and porous structures are key to the enhanced EADS performance of PPILs.
- This strategy facilitates the directional design of low-viscosity PILs with specific functionalities.
Keywords:
DesulfurizationExtraction-adsorption coupledOCNR methodProtic ion pairsProtic porous ionic liquidsMore Related Videos
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