Optimization for Liquid-Liquid Extraction of Cd(II) over Cu(II) Ions from Aqueous Solutions Using Ionic Liquid Aliquat 336 with Tributyl Phosphate

Lee, Lai Yee; Morad, Norhashimah; Ismail, Norli; Talebi, Amir; Rafatullah, Mohd

doi:10.3390/ijms21186860

Cited by 22 publications

(9 citation statements)

References 32 publications

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“…The band at 1624 cm −1 is due to the stretching vibrations of the hydroxyl groups from H 2 O contained in the Nitrolite–Aliquat 336 sorbent. In the spectra of pure Aliquat 336 and Aliquat 336-impregnated Nitrolite, a characteristic peak for quaternary ammonium salts was observed (1465 cm −1 ) [ 22 ]. Asymmetric stretching vibrations of SiO 4 and AlO 4 , which were found in Nitrolite, corresponded to a narrow peak at 1015 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

A New Impregnated Adsorbent for Noble Metal Ion Sorption

2023

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Noble metals (NM) such as gold, platinum, palladium, and rhodium are widely applied in the electronics and automotive industries. Thus, the search for cheap and selective sorbents for noble metals is economically justified. Nitrolite does not sorb noble metal ions. A new impregnated sorbent was prepared. The natural sorbent Nitrolite was impregnated with Aliquat 336 using a new warm impregnation method. After the impregnation process, Nitrolite adsorbed platinum(IV), palladium(II), and gold(III) ions from the chloride solutions. The values of the sorption capacity for palladium(II) and platinum(IV) ions were 47.63 mg/g and 51.39 mg/g, respectively, from the 0.1 M HCl model solution. The sorption capacity for gold(III) ions was estimated to be 73.43 mg/g from the 0.1 M HCl model solution. An exhausted catalytic converter was leached, and platinum(IV), palladium(II), and rhodium(III) were transferred to the chloride solution. The impregnated sorbent Nitrolite–Aliquat 336 was used in the investigations of the platinum(IV), palladium(II), and rhodium(III) ions’ sorption from a real solution. The impregnated sorbent Nitrolite–Aliquat 336 proved to be suitable for the recovery of platinum(IV) and palladium(II) ions, whereas rhodium ions were not sorbed from the leached solutions. Notably, 1 M thiourea in the 1 M HCl solution desorbed platinum(IV), palladium(II), and gold(III) above 94%.

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Section: Resultsmentioning

confidence: 99%

A New Impregnated Adsorbent for Noble Metal Ion Sorption

2023

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“…Articles [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ] can be attributed to the first of the thematic areas indicated in the PCCP Section, and the distribution of these articles into the above categories is presented in Table 2 . As it can be seen, of the four types of articles established by the magazine’s standards ( Reviews , Originals, Communications , Editorials ), only the first two are presented here.…”

Section: Articles On the Various Directionsmentioning

confidence: 99%

“…Two publications [ 7 , 19 ] provide data on the specific interactions in “guest-host” systems. Occasionally, there are works devoted to other aspects related to intermolecular interactions, in particular, to the formation of liquid crystal systems [ 8 ], supercooled bulk water [ 11 ], and liquid-liquid extraction aimed at separating individual heavy metals from aqueous solutions [ 10 ].…”

Section: Articles On the Various Directionsmentioning

confidence: 99%

The Physical Chemistry and Chemical Physics (PCCP) Section of the International Journal of Molecular Sciences in Its Publications: The First 300 Thematic Articles in the First 3 Years

Михайлов¹

2021

IJMS

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“…Ionic liquid (Aliquat 336, methyltrioctylammonium chloride) was used in the presented solu-tion due to the strong coordination effect of the chloride anion [21]. It is commonly used in removing metal ions from aqueous solutions, e.g., in traditional solvent extraction or membrane separation processes (i.e., transport of metal ions through polymer inclusion membranes or sorption of metal ions using polymer sorption materials) [22][23][24][25][26]. Despite this, Aliquat 336 has not been used so far to bind toxic metal ions directly from the ground.…”

Section: Introductionmentioning

confidence: 99%

Possibility of New Active Substrates (ASs) to Be Used to Prevent the Migration of Heavy Metals to the Soil and Water Environments

2022

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This paper aims to propose an alternative to the known permeable reactive barriers (PRBs). PRB is one of the methods, which is a reactive barrier placed below the ground, to clean up contaminated groundwater. New polymer active substrates (ASs) were used to prevent soil contamination by toxic heavy metals. The active substrates consisted of a mixture of poly(vinyl chloride), Aliquat 336, and bis(2-ethylhexyl)adipate, which was applied to the skeleton material (fiberglass or textile). Aliquat 336 was used as a binding agent for metal ions (Cr(VI), Ni(II), Cu(II), Zn(II), Cd(II), and Pb(II)). In contrast with the PRBs, the ASs (from AS-1 to AS-5) were obtained in a simple way using the pouring method. The obtained ASs could be recycled and reused. The active substrates were used for the binding of various metal ions from aqueous solutions and the examined soil. It was found that the active substrate AS-1 decreased the concentrations of nickel, cadmium, and lead by more than 50% and that of chromium by more than 90% in the aqueous solution. High sorption efficiency for chromium and zinc metals (81% and 66%) with the use of AS-2 was also found, owing to which the migration of metals from soil to water can be limited. In the soil environment, active substrate AS-5 with the addition of a plasticizer showed the greatest effectiveness. This solution resulted in a reduction in each tested metal ion of at least 50%, and reductions in cadmium, lead, and copper of over 70%.

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Optimization for Liquid-Liquid Extraction of Cd(II) over Cu(II) Ions from Aqueous Solutions Using Ionic Liquid Aliquat 336 with Tributyl Phosphate

Cited by 22 publications

References 32 publications

A New Impregnated Adsorbent for Noble Metal Ion Sorption

A New Impregnated Adsorbent for Noble Metal Ion Sorption

The Physical Chemistry and Chemical Physics (PCCP) Section of the International Journal of Molecular Sciences in Its Publications: The First 300 Thematic Articles in the First 3 Years

Possibility of New Active Substrates (ASs) to Be Used to Prevent the Migration of Heavy Metals to the Soil and Water Environments

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