Adsorption kinetics and modeling of gadolinium and cobalt ions sorption by an ion-exchange resin

Hamed, Mostafa M.; Rizk, S. E.; Nayl, A.A.

doi:10.1080/02726351.2015.1112328

Cited by 55 publications

(16 citation statements)

References 23 publications

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“…Batch equilibration repeated for investigated cations (0.2 g/L) with the solid sorbent in V/m = 100 mL/g was applied for the capacity estimation at different heating temperatures (50-400˚C) in a muffle kiln for 4 h. The multi-component systems (Cs(I), Pb(II), Cu(II), Sr(II), & Cd(II) ions) were agitated in a shaker thermostat at pH=4.3 for 4 h. The capacity was calculated from equation (4) [17,18]. i V Capacity = Uptake x C x mg / g (4) m …”

Section: Capacity Measurements and Thermal Stabilitymentioning

confidence: 99%

Gamma Irradiation-Induced Preparation of Polyacrylonitrile Acrylamide Nano-silica for Removal of Some Hazardous Metals

Abass

El-Masry

El-Kenany

2021

J Inorg Organomet Polym

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Section: Capacity Measurements and Thermal Stabilitymentioning

confidence: 99%

Gamma Irradiation-Induced Preparation of Polyacrylonitrile Acrylamide Nano-silica for Removal of Some Hazardous Metals

Abass

El-Masry

El-Kenany

2021

J Inorg Organomet Polym

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“…Table 2 provides the results of comparative study of PAMGO-3 with other adsorbents for Gd(III) removal from an aqueous solution. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]17,18 Gratifyingly, it can be found that the PAMGO-3 is a good candidate as an adsorbent with the second highest Gd(III) adsorption capacity, which is probably attributed to the large specific surface area, the abundant PAPA functional groups on PAMGO-3, and excellent surface complexation between PAGMO-3 and Gd(IIII) ion during the sorption process. Although the GO/CNt shows a slightly higher Gd(III) uptake, its separation requires a dialysis bag, and the special and more complex procedures for the Gd(III) adsorption in these systems may hinder their practical application.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

A Facile One-Pot Strategy to Functionalize Graphene Oxide with Poly(amino-phosphonic Acid) Derived from Wasted Acrylic Fibers for Effective Gd(III) Capture

Yin

Fang

Xia

et al. 2019

ACS Sustainable Chem. Eng.

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Today, toxic rare earth metal ions contamination and huge volume of waster acrylic fibers (WAFs) have caused serious environmental problems, which make the development and implementation of feasible and sustainable methods to recycle the wastes of high practical significance. Herein, we propose, for the first time, that using WAFs as a poly(amino-phosphonic acid) (PAPA) precursor to functionalize graphene oxide (GO) based on the excellent chelating ability of PAPA and remarkable properties of GO. In this study, four novel PAPA modified magnetic graphene oxide (MGO) composites (PAMGOs) with different PAPA concentrations (PAMGO-1, PAMGO-2, PAMGO-3, and PAMGO-4) were fabricated by a facile one-pot sequential reaction method, and used as adsorbent for capturing Gd(III) from aqueous solutions. The prepared materials were characterized by various technologies. Batch adsorption results demonstrate that Gd(III) capture relies upon the content of PAPA grafted onto MGO and the pH of solution. In addition, PAMGO-3 not only shows the best Gd(III) sorption performance among tested adsorbents with the maximum uptake capacity of 499.42 mg/g at 298 K, but also demonstrates a high selectivity of Gd(III) ion over various coexisting ions, these results are attributed to the synergistic effect of MGO and PAPA in PAMGO-3. Moreover, the adsorption isotherm is in better agreement with the Langmuir model, and kinetics data follow the pseudo-second-order equation. The thermodynamic studies indicate the uptake of Gd(III) on PAMGO-3 is spontaneous and endothermic. Furthermore, recycling experiments confirm that no obvious loss of adsorption capacity occurred for the PAMGO-3 after six consecutive cycles. This study provides a new perspective to prepare PAMGO-3 from WAFs and shows its use as a promising adsorbent for Gd(III) elimination in aqueous solutions.

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“…Eight types (D201, 201 × 7, D301, D301R, D311, D315, D318 and 330) of resins were chosen to investigate the separation of KGA and PYR. Pretreatment of the resins was based on a method published previously . Then a glass column was packed with a pretreated anion‐exchange resin.…”

Section: Methodsmentioning

confidence: 99%

“…Pretreatment of the resins was based on a method published previously. 24 Then a glass column was packed with a pretreated anion-exchange resin. Subsequently, the fermentation broth was loaded on the packed glass column at a constant flow rate of 1 mL/min and a sample volume of 200 mL.…”

Section: Separation Of the Keto Acids By Ion-exchange Chromatographymentioning

confidence: 99%

Separation of α‐ketoglutaric acid and pyruvic acid from the culture broth of Yarrowia lipolytica WSH‐Z06 by chromatographic methods

Peng

Zeng

et al. 2018

Biotechnology Progress

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Both α‐ketoglutaric acid (KGA) and pyruvic acid (PYR) are important keto acids. Efficient co‐production of KGA and PYR has been achieved in our previous work, and could significantly decrease the cost of fermentation production. KGA and PYR have similar physical and chemical properties. Hence, finding a way to separate the two keto acids efficiently has become a key challenge. In this study, different chromatographic methods have been investigated, including ion‐exchange chromatography, aluminum oxide chromatography and silica gel chromatography. The results show that the two keto acids can be well separated with silica gel chromatography, whereas ion‐exchange chromatography and aluminum oxide chromatography could not separate them. Using the pretreated fermentation broth of Yarrowia lipolytica WSH‐Z06, the purity and yield of KGA/PYR reached 98.7%/99.1% and 86.7%/70.9%, respectively, with an optimized silica gel chromatography‐based procedure. This study provides an efficient method for separating KGA and PYR from fermentation broth, which might be applied on an industrial scale and significantly decrease the cost of biotechnological production of keto acids. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:1370–1379, 2018

show abstract

Adsorption kinetics and modeling of gadolinium and cobalt ions sorption by an ion-exchange resin

Cited by 55 publications

References 23 publications

Gamma Irradiation-Induced Preparation of Polyacrylonitrile Acrylamide Nano-silica for Removal of Some Hazardous Metals

Gamma Irradiation-Induced Preparation of Polyacrylonitrile Acrylamide Nano-silica for Removal of Some Hazardous Metals

A Facile One-Pot Strategy to Functionalize Graphene Oxide with Poly(amino-phosphonic Acid) Derived from Wasted Acrylic Fibers for Effective Gd(III) Capture

Separation of α‐ketoglutaric acid and pyruvic acid from the culture broth of Yarrowia lipolytica WSH‐Z06 by chromatographic methods

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