Several molecular polar solvents have been used as solvents of the more polar phase in the solvent extraction (SX) of metals. However, the use of hydrophilic ionic liquids (ILs) as solvents has seldomly been explored for this application. Here, the hydrophilic IL ethylammonium nitrate (EAN), has been utilized as a polar solvent in SX of transition metal nitrates by tri--butyl phosphate (TBP). It was found that the extraction from EAN is considerably stronger than that from a range of molecular polar solvents. The main species of Co(II) and Fe(III) in EAN are likely [Co(NO)] and [Fe(NO)], respectively. The extracted species are likely Fe(TBP)(NO) and a mixture of Co(TBP)(NO) and Co(TBP)(NO). The addition of HO or LiCl to EAN reduces the extraction because the metal cations coordinate to water molecules and chloride ions stronger than to nitrate ions. This study highlights the potential of using hydrophilic ILs to enhance SX of metals.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8244074 | PMC |
| http://dx.doi.org/10.1002/aic.17213 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Ultrasound-Assisted Ionic Liquid Extraction of Polysaccharides From Crataegus songarica K. Koch Fruits: Structural Characterization and Antioxidant Activity.
Chem Biodivers
January 2025
University and College Key Lab of Clean Conversion and High Value Utilization of Biomass Resources, School of Chemistry and Chemical Engineering, Yili Normal University, Yining, China.
Article Synopsis
- The study focuses on optimizing an ultrasound-assisted ionic liquid extraction (UAILE) method to extract polysaccharides from Crataegus songarica fruits, achieving a 34.37% yield under specific conditions.
- The optimal extraction settings include an ultrasonic power of 400 W, a temperature of 79 °C, and a relatively high liquid-solid ratio, making it more effective than traditional extraction methods.
- The extracted polysaccharides, characterized as a heteropolysaccharide with notable antioxidant properties, could have potential applications in the food and pharmaceutical industries.
Thermally Stable Anthracene-Based 2D/3D Heterostructures for Perovskite Solar Cells.
ACS Appl Mater Interfaces
January 2025
School of Materials Science and Engineering, Georgia Institute of Technology, North Ave NW, Atlanta, Georgia 30332, United States.
Bulky organic cations are used in perovskite solar cells as a protective barrier against moisture, oxygen, and ion diffusion. However, bulky cations can introduce thermal instabilities by reacting with the near-surface of the 3D perovskite forming low-dimensional phases, including 2D perovskites, and by diffusing away from the surface into the film. This study explores the thermal stability of CsFAPbI 3D perovskite surfaces treated with two anthracene salts─anthracen-1-ylmethylammonium iodide (AMAI) and 2-(anthracen-1-yl)ethylammonium iodide (AEAI)─and compares them with the widely used phenethylammonium iodide (PEAI).
View Article and Find Full Text PDFBreaking the Boundaries of the Goldschmidt Tolerance Factor with Ethylammonium Lead Iodide Perovskite Nanocrystals.
ACS Nano
January 2025
Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy.
We report the synthesis of ethylammonium lead iodide (EAPbI) colloidal nanocrystals as another member of the lead halide perovskites family. The insertion of an unusually large -cation (274 pm in diameter) in the perovskite structure, hitherto considered unlikely due to the unfavorable Goldschmidt tolerance factor, results in a significantly larger lattice parameter compared to the Cs-, methylammonium- and formamidinium-based lead halide perovskite homologues. As a consequence, EAPbI nanocrystals are highly unstable, evolving to a nonperovskite δ-EAPbI polymorph within 1 day.
View Article and Find Full Text PDFLigand-Mediated Surface Reaction for Achieving Pure 2D Phase Passivation in High-Efficiency Perovskite Solar Cells.
J Am Chem Soc
January 2025
Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore.
The surface passivation with the heterostructure of the 2D/3D stack has been widely used for boosting the efficiency of n-i-p perovskite solar cells (PSCs). However, the disordered quantum well width distribution of 2D perovskites leads to energy landscape inhomogeneity and crystalline instability, which limits the further development of n-i-p PSCs. Here, a versatile approach, ligand-mediated surface passivation, was developed to produce a phase-pure 2D perovskite passivation layer with a homogeneous energy landscape by dual-ligand codeposition.
View Article and Find Full Text PDFFerroelasticity and Canted Antiferromagnetism in Two-Dimensional Organic-Inorganic Layered Perovskite [CH(CH)NH]FeCl.
ACS Omega
December 2024
Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan.
Two-dimensional organic-inorganic perovskites have been attracted as candidates for multiferroic materials that exhibit two or more ferroic orders such as ferromagnetism, ferroelectricity, ferroelasticity, and ferrotoroidicity. Here, we introduce the structure, ferroelastic domains and magnetic properties of the two-dimensional organic-inorganic perovskite [CH(CH)NH]FeCl (CHEA-Fe) composed of 2-(1-cyclohexenyl)ethylammonium and FeCl . CHEA-Fe underwent two ferroelastic phase transitions from tetragonal to orthorhombic at 332 K and to monoclinic at 232 K with decreasing temperature and exhibited ferroelastic domains under polarized light as a consequence of these ferroelastic phase transitions.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!