Ionic Liquids Recycling for Reuse

Abu-Eishah, Samir I.

doi:10.5772/23267

Cited by 11 publications

(2 citation statements)

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“…93 Due to economic and environmental issues, the recovery and purification of ILs are essential. 94 Moreover, the presence of impurities and water excess in some of the ionic liquids can lead to interference in the proper performance. 95 The ILs used in this work are commercial, where [Ch][DHP] and [Ch][Seri] are technical grade and [Ch][TFSI] and [EMIM][TFSI] are purified grade.…”

Section: [Ch][tfsi] and [Emim][tfsi]mentioning

confidence: 99%

Sustainable Collagen Blends with Different Ionic Liquids for Resistive Touch Sensing Applications

Andonegi

Correia

Pereira

et al. 2023

ACS Sustainable Chem. Eng.

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Considering the sustainable development goals to reduce environmental impact, sustainable sensors based on natural polymers are a priority as the large im plementation of these materials is required considering the Internet of Things (IoT) paradigm. In this context, the present work reports on sustainable blends based on collagen and different ionic liquids (ILs), including ([Ch][DHP], [Ch][TSI], [Ch][Seri]) and ([Emim][TFSI]), processed with varying contents and types of ILs in order to tailor the electrical response. Varying IL types and contents leads to different interactions with the collagen polymer matrix and, therefore, to varying mechanical, thermal, and electrical properties. Collagen/[Ch][Seri] samples display the most pronounced decrease of the tensile strength (3.2 ± 0.4 MPa) and an increase of the elongation at break (50.6 ± 1.5%). The best ionic conductivity value of 0.023 mS cm–1 has been obtained for the sample with 40 wt % of the IL [Ch][Seri]. The functional response of the collagen–IL films has been demonstrated on a resistive touch sensor whose response depends on the ionic conductivity, being suitable for the next generation of sustainable touch sensing devices.

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Section: [Ch][tfsi] and [Emim][tfsi]mentioning

confidence: 99%

Sustainable Collagen Blends with Different Ionic Liquids for Resistive Touch Sensing Applications

Andonegi

Correia

Pereira

et al. 2023

ACS Sustainable Chem. Eng.

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“…To date, the active removal of ILs from industrial wastewater mainly relies on adsorption and oxidation techniques [36]. In order to reduce IL waste, researchers have reported recycle processes to enable their reuse, such as extraction with supercritical CO2 and distillation processes [39]. In case reuse is not feasible, ILs are disposed as organic waste and degraded via oxidation.…”

Section: Toxicity and Environmental Impactmentioning

confidence: 99%

Microextractions in forensic toxicology: The potential role of ionic liquids

Boeck

Dehaen

Tytgat

et al. 2019

TrAC Trends in Analytical Chemistry

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In forensic toxicology, scientists are faced with complex samples and trace concentrations of low-dose legal and illegal drugs. To enable accurate and sensitive analysis, a thorough sample preparation step is crucial. In the context of green chemistry, sample preparation techniques are rapidly evolving.Microextractions are introduced to avoid the use of large solvent volumes and obtain high analyte enrichment. Another trend is the search for alternative solvents to replace toxic and volatile organic solvents. Ionic liquids (ILs) -liquid salts -are proposed as promising alternatives, thanks to their low volatility, low flammability, good thermal and chemical stability. Moreover, the IL structure can be altered by combining different cations and anions, resulting in ILs with optimized physicochemical properties for the extraction of a specific analyte. This review describes the current state of microextraction techniques that apply ILs for the extraction of forensically relevant drugs in biological samples.

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