Exploring Ionic Liquid-based Liquid-Liquid Extraction as Benign Alternative for Sustainable Wastewater Treatment

Sustainability & Circularity NOW, Год журнала: 2025, Номер unknown

Опубликована: Янв. 13, 2025

The uncontrolled release of industrial effluents containing micropollutants (MPs), dyes, and heavy metal ions contaminates natural water bodies posing threats to health the environment. Conventional treatment methods often struggle with challenges such as prolonged processing time, low specificity, risk producing secondary pollutants. Liquid-liquid extraction (LLE) technique utilizing ionic liquids (ILs) has emerged a viable alternative for elimination contaminants from wastewater. ILs, characterized by minimal volatility tunable physicochemical properties, facilitate precise effluent. IL-LLE streamlines experimental setup, lowers energy consumption, promotes recyclability reuse, enhances mechanistic understanding, hence provides sustainable effluent treatment. This review comprehensive analysis approaches wastewater treatment, commencing an overview historical evolution tracing their progression initial research contemporary advanced applications. article primarily examines practical applications IL-LLE, demonstrating how these are employed efficiently remove diverse both simulated actual samples. As whole, consolidates versatility efficiency IL-based LLE in addressing various

Язык: Английский

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Enhancing Enzymatic Biodiesel Production Using Low-Cost CO₂-Based Alkyl Carbamate Ionic Liquid and Ultrasound-Assisted Intensification

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер 13(1), С. 68 - 79

Опубликована: Янв. 3, 2025

Enzymatic biodiesel production often faces challenges such as mass transfer limitations and enzyme sensitivity, resulting in low reaction efficiency. This study aimed to address these issues by integrating ultrasound technology with low-cost CO2-based alkyl carbamate ionic liquids (ILs) additives. Among the investigated ILs, N,N-diallylammonium N′,N′-diallylcarbamate (DACARB) demonstrated highest fatty acid methyl ester (FAME) content ultrasound-assisted catalyzed Eversa Transform 2.0 at an optimal temperature of 50 °C. The addition DACARB improved solubility immiscible reactants enhanced lipase stability, maintaining high FAME yields even under amplitudes up 100% duty cycles 20%. Enzyme hydrolytic activity assays revealed that activated lipase, increasing 33% through favorable alterations tertiary structure, confirmed fluorescence spectroscopy. Furthermore, employing a stepwise methanol dosing strategy 40% amplitude 5% cycle presence 2 wt % achieved 91.3 within 12 h, using only 0.2 concentration. highlights potential promising additive enhance efficiency enzymatic production, offering solution overcome current process.

Язык: Английский

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Proton Transfer Equilibrium in Pseudoprotic Ionic Liquids: Inferences on Ionic Populations

The Journal of Physical Chemistry B, Год журнала: 2025, Номер 129(4), С. 1376 - 1386

Опубликована: Янв. 17, 2025

Nonstoichiometric pseudoprotic ionic liquids (NPPILs) are an emerging class of with interesting physical properties and intriguing prospects for technological applications. However, fundamental questions remain about the proton transfer equilibria that underlie their character. We use a combination nuclear magnetic resonance spectroscopy, infrared small-angle X-ray scattering to characterize trihexylamine/butyric acid water/butyric mixtures. This techniques offers considerable insight into how changes composition mixture. Further, we construct model based on information from 1H 13C NMR, which yields numerical values concentrations all ions present in mixture, demonstrate results supported by data other measurements. is first quantitative calculation NPPIL.

Язык: Английский

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Reactive Molecular Dynamics in Ionic Liquids: A Review of Simulation Techniques and Applications

Liquids, Год журнала: 2025, Номер 5(1), С. 8 - 8

Опубликована: Март 14, 2025

Ionic liquids exhibit distinctive solvation and reactive properties, making them highly relevant for applications in energy storage, catalysis, CO2 capture. However, their complex molecular interactions, including proton transfer physisorption/chemisorption, necessitate advanced computational efforts to model at the atomic scale. This review examines key dynamics approaches simulating ionic liquid reactivity, quantum-mechanical methods, conventional force fields such as ReaxFF, fractional employed PROTEX. The strengths limitations of each method are assessed within context simulations. While simulations provide detailed electronic insights, high cost restricts system size simulation timescales. Reactive enable bond breaking formation larger systems but require extensive parameterization. These well suited investigating reaction pathways influenced by local environment, which can also be partially addressed using multiscale Fractional offer an efficient alternative significantly over extended Instead resolving individual mechanisms full detail, they incorporate probabilities coupled reactions. approach enables study macroscopic conductivity viscosity, transport like Grotthuß process—phenomena that remain inaccessible other methods.

Язык: Английский

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Non-stoichiometric protic ionic liquids

Journal of Molecular Liquids, Год журнала: 2024, Номер 413, С. 125663 - 125663

Опубликована: Авг. 2, 2024

Язык: Английский

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Excited-State Proton Transfer Dynamics of Cyanonaphthol in Protic Ionic Liquids: Concerted Effects of Basicity of Anions and Alkyl Carbons in Cations

The Journal of Physical Chemistry B, Год журнала: 2025, Номер unknown

Опубликована: Янв. 22, 2025

Excited-state proton transfer (ESPT) reactions of 5-cyano-2-naphthol (5CN2) and 5,8-dicyano-2-naphthol (DCN2) were investigated in protic ionic liquids (PILs) composed quaternary ammonium (NnnnH+) (n = 2, 4, or 8) hexanoate (C5H11COO–) using time-resolved fluorescence spectroscopy. The effects the number alkyl carbons cation basicity anion on reaction yield dynamics examined. In a series [NnnnH][C5H11COO], from hydrogen-bonding complex (AHBX–*) proton-dissociated form (RO–*) with solvent acid electronic excited state was observed between bands an acidic (ROH*) anionic as case [N222H][CF3COO] (Fujii et al., J. Phys. Chem B, 2017, 121, 6042). yield, formation rate, decay rate AHBX–* assessed by steady-state intensity ratio to RO–* analysis spectra within several tens nanoseconds. stability significantly different that depended cation. quite fast compared almost close excitation pulse width. Excitation wavelength dependence hundred picoseconds for [NnnnH][C5H11COO]. origin ascribed IL formed ground state, suggested density-functional theory (DFT) calculations.

Язык: Английский

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Guanidine-Based Protic Ionic Liquids for Natural Cellulose Dissolution and Regeneration: A Dissolution Mechanism Study

Опубликована: Янв. 1, 2025

Язык: Английский

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Protic and Aprotic Acetate‐Based Ionic Liquids as Electrolytes for Electrical Double Layer Capacitors

ChemElectroChem, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

Abstract This work presents the synthesis, characterization, and application of a series aprotic protic acetate‐based ionic liquids (AcILs). These cost‐effective ILs can be obtained through simple synthesis display good transport thermal properties. When used as electrolytes in electrical double‐layer capacitors (EDLC) they enable fabrication devices with an operating voltage high 1.8 V, which very cycling float stability. The performance these tuned by adjusting water content ILs. Notably, EDLCs containing AcILs also realized using aluminum current collectors.

Язык: Английский

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First principle based delignification mechanism and kinetics of pine needles using Protic Ionic Liquid and Deep Eutectic Solvent in microwave and oil-bath reactors

Biomass and Bioenergy, Год журнала: 2025, Номер 198, С. 107863 - 107863

Опубликована: Апрель 9, 2025

Язык: Английский

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Property-Driven Design of Thermally Robust Organophosphorus Ionic Liquids for High-Temperature Applications

ACS Applied Engineering Materials, Год журнала: 2025, Номер 3(5), С. 1468 - 1482

Опубликована: Май 5, 2025

We have developed a class of organophosphorus ionic materials featuring tetraarylphosphonium cations with extended π-conjugated systems via facile and modular approach. These mesothermal liquids demonstrate exceptional thermal stability, maintaining their structural integrity when heated at 300 °C for 96 h under aerobic conditions without decomposition. Their negligible volatility strategic exclusion aliphatic C-(sp3)-H bonds from our molecular architecture yields outstanding resistance to thermo-oxidative degradation. Our rigorous investigation using comprehensive single-crystal X-ray diffraction thermodynamic studies validates the design principles while providing detailed insights into structure-property relationships governing melting behavior, photophysical properties. reveal systematic correlation between nature resulting phase transitions. Additionally, characterization demonstrates that select derivatives exhibit strong fluorescence quantum up 42%, suggesting potential applications in optoelectronic devices. thermally robust organic-ion tunable properties ranging demanding environments (thermoresponsive materials, advanced nuclear reactor coolants, energy storage) devices capitalize on unique photoluminescent characters.

Язык: Английский

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