Ionic liquid-based dispersive liquid�liquid microextraction of succinic acid from aqueous streams: COSMO-RS screening and experimental verification

Khan, H.W. and Zailan, A.A. and Bhaskar Reddy, A.V. and Goto, M. and Moniruzzaman, M. (2023) Ionic liquid-based dispersive liquid�liquid microextraction of succinic acid from aqueous streams: COSMO-RS screening and experimental verification. Environmental Technology (United Kingdom). ISSN 09593330

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Abstract

In the present investigation, a total of 108 combinations of ionic liquids (ILs) were screened using the conductor-like screening model for real solvents (COSMO-RS) with the aid of six cations and eighteen anions for the extraction of succinic acid (SA) from aqueous streams through dispersive liquid�liquid microextraction (DLLME). Using the screened ILs, an ionic liquid-based DLLME (IL-DLLME) was developed to extract SA and the role of different reaction parameters in the effectiveness of IL-DLLME approach was investigated. COSMO-RS results suggested that, quaternary ammonium and choline cations form effective IL combinations with OH¯, F¯, and SO42¯ anions due to hydrogen bonding. In view of these results, one of the screened ILs, tetramethylammonium hydroxide TMAmOH was chosen as the extractant in IL-DLLME process and acetonitrile was adopted as the dispersive solvent. The highest SA removal efficiency of 97.8% was achieved using 25 μL of IL TMAmOH as a carrier and 500 μL of acetonitrile as dispersive solvent. The highest amount of SA was extracted with a stir time of 20 min at 300 rpm, followed by centrifugation for 5 min at 4500 rpm. Overall, the findings showed that IL-DLLME is efficient in extracting succinic acid from aqueous environments while adhering to the first-order kinetics. © 2023 Informa UK Limited, trading as Taylor & Francis Group.

Item Type: Article
Additional Information: cited By 2
Uncontrolled Keywords: Acetonitrile; Hydrogen bonds; Organic solvents; Positive ions; Solvent extraction, Conductor-like screening model for real solvents; Dispersive liquid-liquid microextraction; Experimental verification; Extractants; Microextraction; Quaternary ammonium; Reaction parameters; Removal efficiencies; Succinic acids; Tetramethyl ammonium hydroxide, Ionic liquids
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 04 Jun 2024 14:11
Last Modified: 04 Jun 2024 14:11
URI: https://khub.utp.edu.my/scholars/id/eprint/19193

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