A novel strategy to reduce the viscosity of cellulose-ionic liquid solution assisted by transition metal ions

2021 ◽  
Vol 256 ◽  
pp. 117535
Author(s):  
Zhaosheng Fan ◽  
Jianbo Chen ◽  
Suqin Sun ◽  
Qun Zhou
Keyword(s):  
Ionic Liquid ◽  
Transition Metal ◽  
Metal Ions ◽  
Transition Metal Ions ◽  
Liquid Solution ◽  
Novel Strategy ◽  
Ionic Liquid Solution

Task-specific ionic liquid trioctylmethylammonium salicylate as extraction solvent for transition metal ions

Talanta ◽  
2010 ◽  
Vol 80 (3) ◽  
pp. 1177-1182 ◽  
Author(s):  
Vladimir M. Egorov ◽  
Dmitry I. Djigailo ◽  
Dmitry S. Momotenko ◽  
Denis V. Chernyshov ◽  
Irina I. Torocheshnikova ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Transition Metal ◽  
Metal Ions ◽  
Transition Metal Ions ◽  
Extraction Solvent ◽  
Task Specific Ionic Liquid

Efficient separation of transition metals from rare earths by an undiluted phosphonium thiocyanate ionic liquid

2016 ◽  
Vol 18 (23) ◽  
pp. 16039-16045 ◽  
Author(s):  
Alok Rout ◽  
Koen Binnemans
Keyword(s):  
Ionic Liquid ◽  
Rare Earth ◽  
Transition Metal ◽  
Transition Metals ◽  
Metal Ions ◽  
Rare Earths ◽  
Transition Metal Ions ◽  
Rare Earth Ions ◽  
Efficient Separation

Efficient separation of transition metal ions from their mixture with rare-earth ions was achieved by extraction with a phosphonium thiocyanate ionic liquid.

scholarly journals Application of ionic liquid based on Aliquat 336 and D2EHPA in the extraction of transition metals

2022 ◽  
Vol 1212 (1) ◽  
pp. 012021
Author(s):  
M I Fedorova ◽  
A V Levina
Keyword(s):  
Ionic Liquid ◽  
Transition Metal ◽  
Metal Ions ◽  
Transition Metal Ions ◽  
Liquid Extraction ◽  
Phase System ◽  
Aliquat 336 ◽  
Polypropylene Glycol ◽  
Two Phase ◽  
Liquid Liquid Extraction

Abstract To date, there are a number of methods for selective extraction of transition metal ions based on liquid-liquid extraction. One of the most interesting methods of metal ions extraction is liquid-liquid extraction with application of ionic liquids based on quaternary ammonium bases and organic acid residues, in particular, organophosphorus, diluted with organic solvent (toluene, xylene, kerosene, etc.). However, using of organic solvents does not correspond to the modern tendencies of harmful effects on the environment reducing. Thus, we propose to use Aliquat 336 and D2EHPA-based ionic liquid for extraction of transition metal ions in ecologically safe aqueous two-phase system based on polypropylene glycol 425 and sodium chloride. Di(2-ethylhexyl) phosphate trioctylmethylammonium has been shown to yield more than 80% Fe(III) and Y(III) ions.

HREM Study of electron-induced surface radiation damage in ReO3

1991 ◽  
Vol 49 ◽  
pp. 636-637
Author(s):  
R. Ai ◽  
H.-J. Fan ◽  
L. D. Marks
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Metal Oxides ◽  
Electron Irradiation ◽  
Transition Metal Oxides ◽  
Carbon Film ◽  
Transition Metal Ions ◽  
Surface Radiation ◽  
Valence Transition ◽  
Electron Microscopes

It has been known for a long time that electron irradiation induces damage in maximal valence transition metal oxides such as TiO2, V2O5, and WO3, of which transition metal ions have an empty d-shell. This type of damage is excited by electronic transition and can be explained by the Knoteck-Feibelman mechanism (K-F mechanism). Although the K-F mechanism predicts that no damage should occur in transition metal oxides of which the transition metal ions have a partially filled d-shell, namely submaximal valence transition metal oxides, our recent study on ReO3 shows that submaximal valence transition metal oxides undergo damage during electron irradiation.ReO3 has a nearly cubic structure and contains a single unit in its cell: a = 3.73 Å, and α = 89°34'. TEM specimens were prepared by depositing dry powders onto a holey carbon film supported on a copper grid. Specimens were examined in Hitachi H-9000 and UHV H-9000 electron microscopes both operated at 300 keV accelerating voltage. The electron beam flux was maintained at about 10 A/cm2 during the observation.

Synthesis, Spectral and Antimicrobial Investigation of 2-(Naphthalenel-ylamino)-2- Phenylacetonitrile and 1, 10-Phenanthroline with Five Divalent Transition Metal Ions

2019 ◽  
Vol 10 (01) ◽  
Author(s):  
Mohammed Al-Amery1 ◽  
Ashraf Saad Rasheed ◽  
Dina A. Najeeb
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Transition Metal Ions ◽  
Molar Conductance ◽  
Octahedral Geometry ◽  
Mixed Ligand ◽  
Gram Negative Bacteria ◽  
Magnetic Studies ◽  
Gram Positive Bacteria

Five new mixed ligand metal complexes have been synthesized by the reaction of divalent transition metal ions (Hg, Ni, Zn, Cu and Cd) with 2-(naphthalen-l-ylamino)-2-phenylacetonitrile (L1 ) and 1,10-phenanthroline (L2). The coordination likelihood of the two ligands toward metal ions has been suggested in the light of elemental analysis, UV-Vis spectra, FTIR, 1H-NMR, flam atomic absorption, molar conductance and magnetic studies. Results data suggest that the octahedral geometry for all the prepared complexes. Antibacterial examination of synthesized complexes in vitro was performed against four bacterias. Firstly, Gram-negative bacteria namely, Pseudomonas aerugin and Escherichia. Secondly, Gram-positive bacteria namely, Bacillus subtilis, Staphylococcuaurouss. Results data exhibit that the synthesized complexes exhibited more biological activity than tetracycline pharmaceutical.

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