Highly Efficient Extraction of Cadmium(II) in Nitrate Medium by Quarternary Ammoniums

Guezzen, Brahim; Didi, Mohamed Amine

doi:10.4236/ajac.2015.611085

Cited by 5 publications

(2 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results obtained with Cadmium in the presence of these acids, anions and auxiliary complexing agents indicate that at some concentration they act as releasing/salting out agents by the formation of unstable salts of Cadmium, thus, making it readily available as free Cadmium ions for complexation with the ligand in the organic phase, resulting in the extraction of the metal from the aqueous phase to the organic phase and in concentrations that the extraction percent is small or zero, they are forming very stable salts with Cadmium and making it unavailable for complexation with the ligand H 2 BuEtP 25,26 . The results with H 3 PO 4 and PO 4…”

Section: Resultsmentioning

confidence: 99%

Acids and Anions Effects on the Distrubution of Cadmium Between Buffered Aqeuous Phases and 4,4´-(1e,1e´)-1,1´-(Ethane-1,2-Diylbis (Azan-1-Yl-1ylidene)) Bis(5-Methyl-2-Phenyl-2,3-Dihydro-1h-Pyrazol-3-Ol) Solutions

et al. 2019

View full text Add to dashboard Cite

The effect of some acids, anions and auxiliary complexing agents on the extraction of Cadmium (II) from aqueous solutions buffered to pH 7.5 using a chloroform solution of the Schiff base ligand 4,4´-(1E,1E´)-1,1´-(ethane-1,2-diylbis(azan-1-yl-1ylidene))bis(5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-ol) (H2BuEtP) alone and in the presence of 1-(3-hydroxy-5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl) butan-1-one (HBuP) after an equilibration time of sixty minutes was investigated. Working concentration of Cd(II) was 50mgL-1, while a range from 0.001M-3.0M was used for acid and 0.001M-1.0M for anions and auxiliary complexing agents. Extraction raffinates were analysed for Cd(II) using Flame Atomic Absorption spectrophotometry and Distribution Ratios. Percentage Extractions (%E) were calculated by difference of Cd(II) concentrations before and after equilibration. The mixed ligands H2BuEtP/HBuP organic phase was a better extractant for Cadmium than H2BuEtP alone but the difference was not significant for all acids, Cl-, Oxalate and Tartrate. The results indicated that at lower concentrations of the acids, anions and auxiliary complexing agents, a releasing effect occurred with improved extraction of Cadmium > 90% in most cases and at high concentrations there was reduced percentage extraction due to masking of Cadmium from formation of stable salts of Cadmium. Comparing results with other those of other metals studied under same conditions showed that multi-metal extraction with the ligand (H2BuEtP) is possible. H3PO4, H2SO4, HCl, PO43-, EDTA and Oxalate all showed theoretical potentials for separating Cadmium from other studied metals with Separation Factors βxy = Dx/Dy close to and above 104.

show abstract

Section: Resultsmentioning

confidence: 99%

Acids and Anions Effects on the Distrubution of Cadmium Between Buffered Aqeuous Phases and 4,4´-(1e,1e´)-1,1´-(Ethane-1,2-Diylbis (Azan-1-Yl-1ylidene)) Bis(5-Methyl-2-Phenyl-2,3-Dihydro-1h-Pyrazol-3-Ol) Solutions

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Chronic Cd exposure is long known harmful to the renal system and the major damage site of Cd accumulation is the proximal tubular cells of the renal cortex . The unsympathetic effect that is related to Cd exposure is renal dysfunction noticed as urinary excretion of low‐molecular‐weight proteins and intracellular tubular enzymes is increased .…”

Section: Introductionmentioning

confidence: 99%

Nanoparticles decorated with a Schiff's base for the microextraction of Cd, Pb, Ni, and Co in environmental samples

et al. 2016

View full text Add to dashboard Cite

In this paper, we report a new liquid-liquid microextraction procedure called "nanoparticles decorated with a Schiff's base for the microextraction of Cd, Pb, Ni, and Co in environmental samples". The developed procedure was utilized for the extraction of Cd, Pb, Ni, and Co in environmental samples. The Schiff's base was formed by reacting salicylaldehyde with 3-aminopropyltriethoxysilane-functionalized iron oxide nanoparticles. Analyte extraction was conducted in a capillary column system loaded with modified nanoparticles and triton X-114 as dispersion medium. 1-Butyl-3-methylimidazolium hexafluorophosphate was employed as an extraction solvent. Acidified methanol in ultrasonic bath was used as desorption solvent, and elemental determination was carried out with flame atomic absorption spectrometer. Characterization of modified nanoparticles was performed with FTIR spectroscopy and transmission electron microscopy. Solution pH, nanoparticles amount, dispersant concentration, ionic liquid, and temperature were optimized for the extraction. Detection limits obtained for Cd, Pb, Ni, and Co were 0.183, 0.201, 0.241, and 0.192 μg L(-1), respectively, and enhancement factors were 79.1, 86.4, 95.7, and 82.0, respectively. The reproducibility of the developed procedure was in the range of 3.98-5.10%. Validation was checked by applying the developed procedure on certified reference water samples. The microextraction based on nanoparticles decorated with Schiff's base was successfully applied for the extraction of Cd, Pb, Ni, and Co in real environmental water samples.

show abstract

Recovery of copper and silver from industrial e-waste leached solutions using sustainable liquid membrane technology: a review

Kahar

Othman

Noah

et al. 2023

Environ Sci Pollut Res

View full text Add to dashboard Cite

Highly Efficient Extraction of Cadmium(II) in Nitrate Medium by Quarternary Ammoniums

Cited by 5 publications

References 35 publications

Acids and Anions Effects on the Distrubution of Cadmium Between Buffered Aqeuous Phases and 4,4´-(1e,1e´)-1,1´-(Ethane-1,2-Diylbis (Azan-1-Yl-1ylidene)) Bis(5-Methyl-2-Phenyl-2,3-Dihydro-1h-Pyrazol-3-Ol) Solutions

Acids and Anions Effects on the Distrubution of Cadmium Between Buffered Aqeuous Phases and 4,4´-(1e,1e´)-1,1´-(Ethane-1,2-Diylbis (Azan-1-Yl-1ylidene)) Bis(5-Methyl-2-Phenyl-2,3-Dihydro-1h-Pyrazol-3-Ol) Solutions

Nanoparticles decorated with a Schiff's base for the microextraction of Cd, Pb, Ni, and Co in environmental samples

Recovery of copper and silver from industrial e-waste leached solutions using sustainable liquid membrane technology: a review

Contact Info

Product

Resources

About