Interactions in Lidocaine-Carboxylic Acid-Based Deep Eutectic Solvents: Implications for Cobalt Extraction Article Swipe
Zaichao Dong
,
Rong Zhang
,
Jiyan Chen
,
Changsheng Qu
,
Xin Wang
,
Cong Chen
,
Yang Liu
,
Ling Yun Wang
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/colloids9030040
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/colloids9030040
The limited understanding of intermolecular interactions in deep eutectic solvents (DESs) has restricted their rational design and broader application. In this study, a series of hydrophobic DESs (HDESs) were prepared using lidocaine as the hydrogen bond acceptor and various carboxylic acids as hydrogen bond donors. Their physicochemical properties, including density, viscosity, and thermal stability, were systematically characterized. Interactions between components were evaluated through excess molar volume, viscosity deviation, and Grunberg–Nissan parameters. Strong hydrogen bonding between lidocaine and carboxylic acids was confirmed, which weakened with increasing alkyl chain length of the acids. Furthermore, as the acid content in the mixture increased, lidocaine’s ability to disrupt the intrinsic hydrogen-bonding network of the carboxylic acids decreased, thereby weakening the hydrogen bonding interactions between the components. The extraction capability of the HDESs for cobalt ions was evaluated in aqueous systems. Cobalt, a key material in lithium-ion batteries and advanced alloys, is in rising demand due to clean energy development. The lidocaine/decanoic acid (1:2) system exhibited nearly 100% extraction efficiency, surpassing conventional extractants. The hydrophobic nature of the HDESs facilitated effective phase separation and reduced solvent loss. These findings provide theoretical insights and design principles for developing high performance HDESs tailored for environmentally friendly metal recovery, particularly in battery recycling and treatment of industrial wastewater.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/colloids9030040
- https://www.mdpi.com/2504-5377/9/3/40/pdf?version=1750220477
- OA Status
- gold
- Cited By
- 1
- References
- 42
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4411429106
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4411429106Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/colloids9030040Digital Object Identifier
- Title
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Interactions in Lidocaine-Carboxylic Acid-Based Deep Eutectic Solvents: Implications for Cobalt ExtractionWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-06-18Full publication date if available
- Authors
-
Zaichao Dong, Rong Zhang, Jiyan Chen, Changsheng Qu, Xin Wang, Cong Chen, Yang Liu, Ling Yun WangList of authors in order
- Landing page
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https://doi.org/10.3390/colloids9030040Publisher landing page
- PDF URL
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https://www.mdpi.com/2504-5377/9/3/40/pdf?version=1750220477Direct link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
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https://www.mdpi.com/2504-5377/9/3/40/pdf?version=1750220477Direct OA link when available
- Concepts
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Eutectic system, Hydrogen bond, Carboxylic acid, Cobalt, Alkyl, Chemistry, Extraction (chemistry), Chemical engineering, Inorganic chemistry, Organic chemistry, Molecule, Engineering, AlloyTop concepts (fields/topics) attached by OpenAlex
- Cited by
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1Total citation count in OpenAlex
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2025: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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