Ammonium-based deep eutectic solvents as novel soil washing agent for lead removal

Mukhopadhyay, Soumyadeep; Mukherjee, Sumona; Adnan, N.; Hayyan, Adeeb; Hayyan, Maan; Hashim, Mohd Ali; Sengupta, Bhaskar

doi:10.1016/j.cej.2016.02.030

Cited by 73 publications

(22 citation statements)

References 32 publications

(38 reference statements)

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“…Many factors including sorption, mass transfer, solubilization and interfacial tension can affect heavy metal removal 20 . The addition of surfactants will result in a dilution of NADESs and introduction of more water molecules, which can not only decrease the viscosity of eluents but also act as a media to leach out the already loosened metal ions from P. haitanensis surface 17 . Water in the eluent system in the range of 0 to approximately 10% was the main factor affecting the removal of heavy metals in the previous study.…”

Section: Resultsmentioning

confidence: 99%

“…They are more environmentally friendly compared with DESs 8 . As designer solvents, NADESs have been suggested to be used for the removal of heavy metals in soils and sewage 16–19 . However, there are not many studies in foods, the studies mainly involve edible oils and rice 10,20 .…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, biodegradable surfactants are environmentally friendly and have been used for many years to remove heavy metals 21 . The effect and mechanism of NADESs cooperation with surfactants on the removal of heavy metals have been reported 17,20 …”

Section: Introductionmentioning

confidence: 99%

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Green and efficient removal of heavy metals from Porphyra haitanensis using natural deep eutectic solvents

et al. 2020

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BACKGROUND Porphyra haitanensis now faces serious heavy metal pollution problems. Natural deep eutectic solvents (NADESs) have been recognized as a novel class of sustainable solvents, which can be used for heavy metal removal. In this study, 28 kinds of NADESs were prepared and investigated as eluent in the removal of lead (Pb), cadmium (Cd), chromium (Cr), arsenic (As), and copper (Cu) from P. haitanensis for the first time, and the adsorption mechanism of NADESs was also studied. RESULTS The removals were greatly improved by NADESs compared with control where the removal rates of Pb, Cd, Cr, As and Cu were 17.4–87.54%, 57.54–100%, 9.8–48.59%, 21.32–78.24% and 11.68–79.73%, respectively. The optimal condition was 10% water content and solid–liquid ratio of 1:20. Moreover, the addition of 20% natural surfactant arabic gum can further increase the heavy metals removal rates of NADESs. The adsorption mechanism experiments showed that the pseudo second‐order model and the Freundlich adsorption model can better explain the adsorption mechanism of NADESs on heavy metals removal. CONCLUSION Taken together, a green and efficient method for removing heavy metals from P. haitanensis was established. © 2020 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Green and efficient removal of heavy metals from Porphyra haitanensis using natural deep eutectic solvents

et al. 2020

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“…Hydrophilic DESs were also used to wash metals from hydrophobic streams like waste fat and oils ( [50]) and the method was found to be promising, with the results obtained similar to conventional adsorbents. Another potential use of DES is the depollution of soils contaminated with heavy metals [49]. Natural DESs based on fructose or sucrose and ChCl were able to remove Pb from the soil.…”

Section: Sucrosementioning

confidence: 99%

Review on Hydrometallurgical Recovery of Metals with Deep Eutectic Solvents

Zante

Boltoeva

2020

Sustainable Chemistry

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Deep eutectic solvents (DESs) appeared recently as a new class of green designer solvents. The recovery of metals using hydrometallurgy is of major importance with the growth in metal demand. Several authors used these solvents for the hydrometallurgical recovery of metals from primary and secondary resources, and these studies are reviewed in the present work. Hydrophilic DESs can be used for the leaching of metals and have great potential to replace mineral acids, and even to reduce water consumption. Efficient and selective leaching of metals from minerals or wastes is feasible by using DESs. However, the kinetics of leaching as well as the physicochemical properties of DESs are still limiting their large-scale application. Electrochemical recovery from DES is also possible but deserves further investigation. Finally, the recovery of metals from aqueous solutions using hydrophobic DESs was studied in several works. For the solvent extraction of metals, hydrophobic DESs constitute credible alternative ionic liquids.

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“…поверхностно-активные вещества [4][5][6], ионные жидкости [7][8][9] и глубоко эвтектические смеси [10][11][12]. Доступность, низкая стоимость, высокая степень биоразлагаемости, а также широкий спектр выпускаемых ПАВ обуславливают высокий интерес к поиску новых методов экстракции веществ различной природы в системах на основе неионных [13,14], катионных [15,16], анионных [17,18] ПАВ или их смесей [19,20].…”

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Halide and Thiocyanate Metal Acid Complexes Extraction in the Water – Ethoxylated Nonylphenol – Ammonium Sulfate System

Stankova

Елохов

Леснов

2019

Journal of Siberian Federal University. Chemistry

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Nonionic ethoxylated surfactants, including ethoxylated nonylphenols, can be considered as neutral oxygen-containing extraction reagents, the formation of delamination systems with which is possible when salting-out with inorganic salts. In this work, the distribution of halide and thiocyanate acid complexes of thallium (III), iron (III), indium and gallium in the water – ethoxylated nonylphenol (neonol AF 9-12) – ammonium sulfate system at 25°C was investigated. It is established that thallium (III) is quantitatively extracted in the form of tetrahalidetallate-ion with an acidity of more than 0.1 mol/l, extraction of other metals is not quantitative. Among the thiocyanate acid complexes, zinc, cobalt and copper (II) are quantitatively concentrated, which can be used for group concentration of these metals or their extraction-spectrophotometric determination methods

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Ammonium-based deep eutectic solvents as novel soil washing agent for lead removal

Cited by 73 publications

References 32 publications

Green and efficient removal of heavy metals from Porphyra haitanensis using natural deep eutectic solvents

Green and efficient removal of heavy metals from Porphyra haitanensis using natural deep eutectic solvents

Review on Hydrometallurgical Recovery of Metals with Deep Eutectic Solvents

Halide and Thiocyanate Metal Acid Complexes Extraction in the Water – Ethoxylated Nonylphenol – Ammonium Sulfate System

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