Porous and fractal analysis on the permeability of nanofiltration membranes for the removal of metal ions

Agboola, Oluranti; Mokrani, Touhami; Sadiku, Rotimi

doi:10.1007/s10853-015-9562-3

Cited by 12 publications

(1 citation statement)

References 35 publications

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“…Modern materials and technologies facilitated the separation of heavy metals by using various effective approaches such as adsorption, coprecipitation, filtration, extraction, ion exchange, electrochemical treatment, chemical oxidation or reduction, membranes, reverse osmosis etc. [14][15][16][17][18][19][20][21]. These materials and methods are successful up to some level in terms of efficacy, however, failed due to several reasons including cost, stability, recyclability, toxicity, etc.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Graphene Oxide‐Based Membranes for Heavy Metal Ions Separation

et al. 2022

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Graphene oxide (GO)‐based membranes have been widely investigated for separation of dyes, salt ions, heavy metal ions, and biomolecules due to their high mechanical strength, single‐layered structure, large surface area, and high affinity. However, due to irregular pore structure, nanochannels, interlayer distance, easy functionalization, swelling effect, and chemical stability under aqueous environment limited their separation efficiency. In this review, different fabrication methods of GO membranes are summarized. The role of functionalization and cross‐linking on membrane's structural properties, separation performance, and practical applications are discussed. Further, the GO‐based membranes (GOMs) for separation and removal of heavy metal ions are discussed in detail. The factors which influence the separation performance are also highlighted. Finally, recommendations and future directions are suggested.

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Section: Introductionmentioning

confidence: 99%

Recent Advances in Graphene Oxide‐Based Membranes for Heavy Metal Ions Separation

et al. 2022

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Water Transport Through Synthetic Membranes as Inspired by Transport Through Biological Membranes

Strzelewicz

Dudek

Krasowska

2021

Biologically-Inspired Systems

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Exploiting carboxymethyl cellulose-starch/alumina nano gel to eliminate Fe(III) from ore leachates of rare earth elements

Murad,

Dakroury,

Abu Elgoud

2023

Cellulose

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The present study describes the development of a novel nano gel of Carboxymethyl Cellulose Starch and Alumina (CMC-St/Al2O3) to purify the leach liquor of rare earth elements (REEs) minerals from Fe(III), which is considered the most contaminating metal in the REE liquor. CMC-St/Al2O3 nano gel was recognized by different analytical techniques such as FT-IR, SEM, TEM, X-ray diffraction, particle size, and thermal analysis. In a batch study, the best conditions for purifying REE from Fe(III) contaminants using CMC-St/Al2O3 nano gel were determined. For an initial concentration of 100 mg L−1, 97.6% of Fe(III) was efficiently adsorbed onto CMC-St/Al2O3 after 15.0 min, pH = 2, and 25 °C. Due to the competition effect, the sorption efficiencies of the binary systems decreased to 68.4%, 72.97%, and 84.71% for the systems Fe(III)/La(III), Fe(III)/Sr(II), and Fe(III)/Cs(I), respectively. 99.9% of Fe(III) is eluted by 0.50 mol L−1 H2SO4. The sorption process was fitted with pseudo-second-order and the Langmuir model based on the error functions: Coefficient of determination (R2), Reduced Chi-square (χ2), The sum of square errors (SSE), and Corrected Akaike Information Criterion (AICc) as well as Residual error plots. The sorption process was spontaneous and exothermic. Finally, a CMC-St/Al2O3 nano gel was used to separate Fe(III) from the monazite liquor minerals and Sela leachate, mineralized from the Rosetta area and Gabal El Sela at Halaib environs, Egypt, with efficiencies of 89.03 and 92.7%, respectively.

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Porous and fractal analysis on the permeability of nanofiltration membranes for the removal of metal ions

Cited by 12 publications

References 35 publications

Recent Advances in Graphene Oxide‐Based Membranes for Heavy Metal Ions Separation

Recent Advances in Graphene Oxide‐Based Membranes for Heavy Metal Ions Separation

Water Transport Through Synthetic Membranes as Inspired by Transport Through Biological Membranes

Exploiting carboxymethyl cellulose-starch/alumina nano gel to eliminate Fe(III) from ore leachates of rare earth elements

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