Parametric studies on the removal of nickel using emulsion liquid membrane

Rajamohan, N.; Qasmi, Fatma Al

doi:10.5004/dwt.2019.23426

Cited by 9 publications

(3 citation statements)

References 11 publications

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“…With a further increase in the arsenic concentration, a decrease in the arsenic extraction efficiency can be observed. Arsenic ions rapidly saturated the interfacial area between the membrane and feed phases, leading to a slow permeation, creating mass transfer resistance and thus reducing extraction efficiency [26,66] . Therefore, the optimal removal efficiency of arsenic ions was obtained as 84 % for 50 mg/l of the initial concentration of these ions in the feed phase.…”

Section: Resultsmentioning

confidence: 99%

Removal of High Concentrations of Arsenite from Aqueous Solutions by the Emulsion Liquid Membrane Technique

Ghasemi,

Abdi,

Nasiri

2024

ChemistrySelect

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As(III) is a dangerous species that contaminates groundwater resources and therefore water purification from this element is necessary. In this study, the removal of As(III) was investigated by the emulsion liquid membrane (ELM) technique due to the high toxicity levels of this species. The effect of various parameters such as hydrochloric acid and arsenic concentration in the feed solution, emulsion to feed ratio, surfactant concentration and type of carrier was evaluated on the arsenic separation efficiency. The results showed that the best type of carrier in terms of emulsion stability and separation efficiency of arsenic ions was di‐(2‐ethylhexyl) phosphoric acid (D2EHPA), and its optimal concentration was about 5 % (v/v). In addition, paraffin as the organic solvent performed better than the mixture of paraffin and kerosene in the separation of As(III) ions. The optimal conditions were obtained at 8 and 0.1 M HCl concentrations for the feed and the internal phases, respectively. Also, the emulsion to feed ratio of 1 : 4.5, the volume ratio of the internal phase to the membrane phase of 1 : 1 and the surfactant concentration of 5 % (v/v) led to achieving the maximum removal of arsenic ions. This work presents a broad perspective of removing As(III) ions from wastewater by carefully examining the parameters influencing the separation of this hazardous element through the ELM method.

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Section: Resultsmentioning

confidence: 99%

Removal of High Concentrations of Arsenite from Aqueous Solutions by the Emulsion Liquid Membrane Technique

Ghasemi,

Abdi,

Nasiri

2024

ChemistrySelect

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“…In such cases, developing ways to etch the remaining 80 % or more of the MAX phases into MXene materials is imperative [50] . Thus, the introduced of molten salt synthesis using Lewis acid as a growing approach for manufacturing MXene materials has substantially expanded the variation of MXene family [51–55] …”

Section: Preparation Methods Of Mxenementioning

confidence: 99%

Several Fundamental Aspects of MXene: Synthesis and Their Applications

2023

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MXene, a new member of the 2D material family, has stimulated research and been used in a variety of fields since its inception. It is a two dimensional transition metal‐based layered material made of carbides and nitrides. From the beginning of its discovery, the specific etching of the MAX phase and various predecessors have been employed to generate distinct compositions, with several compositions being theoretically envisaged. Due to their unique features, the MXene family is a prospective contender for a variety of applications, including, interference shielding by electromagnet, energy storage, electrocatalysis, water purification, environmental remediation, medicine and so on. The pure MXene as well as MXene based materials can be easily prepared from their MAX phases and easy implementation in broad range of areas. The review article includes the properties, MAX phase synthesis, selection of precursor materials, as well as commonly used preparation methods of MXene. A few applications of MXene based materials in variety of fields have been covered in this review. Additionally, the limitations and future prospects of MXene and MXene‐based compounds have been discussed.

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“…Due to the high phenol concentration, the phenol compounds diffuse across the membrane phase at an extremely sluggish rate. This is because of the increased mass transfer barrier that the higher phenol concentration creates [37]. When there was a concentration of phenol during the feed phase of 100 mg/L, a removal efficiency of phenol ion that was at its highest possible level of 96% was measured and recorded.…”

Section: Effect Of Phenol Concentrationsmentioning

confidence: 99%

Removal of Phenol Contaminants from Aqueous Solution Using Pickering Emulsion Liquid Membrane Stabilized by Magnetic Nano-Fe3O4

Rasool,

Mohammed,

Ravankhah

2024

IJCPE

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In the current study, the effect of the nonionic surfactant (span 80) on the emulsification of a mixture of kerosene as a petroleum-based organic solvent and span80 as a green diluent in the ratio 1:1 was investigated. NaOH was used as the internal phase, and the stability of the emulsion was tested. The potential for extracting phenol from aqueous solutions without the use of a carrier agent has been explored using Pickering emulsion liquid membrane. Additionally, the impacts of experimental parameters include homogenizer speed, mixing speed, emulsification time, Fe3O4-Span 80 ratios, NaOH concentration, and internal to membrane volume ratio (I/O) on extraction effectiveness and emulsion stability. The findings demonstrated that after 9 minutes of contact time and a minimum breaking percent of 0.745% under ideal circumstances, more than 96% of phenol could be recovered. In addition thermodynamic analysis reveals that the extraction process was an endothermic and spontaneous in nature and the overall mass transfer coefficient was 1.115 m/s. Membrane materials and nanoparticles were recycled four time in the extraction of phenol with approximately the same efficiency and no significant breakage percent..

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Parametric studies on the removal of nickel using emulsion liquid membrane

Cited by 9 publications

References 11 publications

Removal of High Concentrations of Arsenite from Aqueous Solutions by the Emulsion Liquid Membrane Technique

Removal of High Concentrations of Arsenite from Aqueous Solutions by the Emulsion Liquid Membrane Technique

Several Fundamental Aspects of MXene: Synthesis and Their Applications

Removal of Phenol Contaminants from Aqueous Solution Using Pickering Emulsion Liquid Membrane Stabilized by Magnetic Nano-Fe3O4

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