Uptake studies of copper(II) on glycidyl methacrylate chelating resin containing Fe2O3 particles

Donia, Ahmed M.; Atia, Asem A.; El‐Boraey, Hanaa A.; Mabrouk, Dalia H.

doi:10.1016/j.seppur.2005.08.008

Cited by 78 publications

(43 citation statements)

References 17 publications

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“…(Gode and Pehlivan, 2003). These thermodynamic data also show that DH 0 < TDS 0 at all temperatures indicating that the adsorption process is dominated by entropic rather than enthalpic changes (Donia et al, 2006).…”

Section: Adsorption Isothermmentioning

confidence: 58%

Kinetic and equilibrium characterization of uranium(VI) adsorption onto carboxylate-functionalized poly(hydroxyethylmethacrylate)-grafted lignocellulosics

Anirudhan

Divya

Suchithra

2009

Journal of Environmental Management

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Section: Adsorption Isothermmentioning

confidence: 58%

Kinetic and equilibrium characterization of uranium(VI) adsorption onto carboxylate-functionalized poly(hydroxyethylmethacrylate)-grafted lignocellulosics

Anirudhan

Divya

Suchithra

2009

Journal of Environmental Management

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“…A more negative of ΔG o ads with increasing temperature implies a greater driving force of sorption at higher temperature, which in return leads to the higher uptake of metal ions. This possibly is attributed to the dehydration of metal ions, which facilitates their interaction with the chelating active groups [43].…”

Section: -4 Adsorption Thermodynamicsmentioning

confidence: 99%

Synthesis and characterization of a new iminodiacetate chelating resin for removal of toxic heavy metal ions from aqueous solution by batch and fixed bed column methods

El‐Bahy

2016

Korean J. Chem. Eng.

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New porous chelating resin beads CPN-IDA were prepared by the reaction of poly (acrylonitrile-co-N,N'-methylenebisacrylamide) with etheylenediamine and sodium chloroacetate, respectively. The composition and morphology of the chelating resin was characterized by Fourier transform infrared spectroscopy (FTIR), thermal analysis (TGA and DrTGA), scanning electron microscopy (SEM),surface area measurements by N 2 adsorption (S BET ) and water regain (w%). Batch adsorption experiments were employed to study the impact of some factors that control the adsorption of metal ions including solution pH, concentration of metal ions, contact time and the temperature of the solution. Batch sorption results showed that the chelating resin had high affinity towards Cu(II), Cd(II) and Pb(II). The saturated adsorption capacity at 25 o C was 2.43, 1.93 and 1.45 mmolg −1 resin for Cu(II), Cd(II) and Pb(II), respectively. Among the empirical isotherm models, the equilibrium adsorption results were obviously fitted with Langmuir model. The kinetics was analyzed using pseudo-first-order, pseudo-second-order, and intra-particle diffusion equations. The adsorption kinetic data were well elucidated with pseudo-second-order kinetic model. Thermodynamic parameters were calculated for the uptake of the metal ions under study and it was found to be a spontaneous process. Moreover, the adsorption of metal ions has been studied using column technique. The regeneration of CPN-IDA was experimentally performed by using nitric acid. The chelating resin was used repeatedly for five times with a little decrease in sorption of metal ions.

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“…van't Hoff equation (Donia et al 2006) which relates entropy (DS°) and enthalpy (DH°) changes is given by…”

Section: Thermodynamics Of Adsorptionmentioning

confidence: 99%

Ionic solid-impregnated sulphate-crosslinked chitosan for effective adsorption of hexavalent chromium from effluents

Kahu

Shekhawat

Saravanan

et al. 2016

Int. J. Environ. Sci. Technol.

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Microwave-assisted tetrabutyl ammonium-impregnated sulphate-crosslinked chitosan was synthesized for enhanced adsorption of hexavalent chromium. The adsorbent obtained was extensively characterized using Fourier transform infrared, X-ray diffraction, scanning electron microscopy and energy-dispersive X-ray studies.Various isotherm models such as Langmuir, Freundlich and Dubinin-Radushkevich were studied to comprehend the adsorption mechanism of hexavalent chromium by the adsorbent. Maximum adsorption capacity of 225.9 mg g -1 was observed at pH 3.0 in accordance with Langmuir isotherm model. The sorption kinetics and thermodynamic studies revealed that adsorption of hexavalent chromium followed pseudo-second-order kinetics with exothermic and spontaneous behaviour. A column packed with 1 g of adsorbent was found to give complete adsorption of Cr(VI) up to 900 mL of 200 mg L -1 solution which discerns the applicability of the adsorbent material for higher sample volumes in column studies. The effective adsorption results were obtained due to both ion exchange and ion pair interaction of adsorbent with hexavalent chromium. Greener aspect of overall adsorption was regeneration of the adsorbent which was carried out using sodium hydroxide solution. In the present study, the regenerated adsorbent was effectively reused up to ten adsorptiondesorption cycles with no loss in adsorption efficiency.

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Uptake studies of copper(II) on glycidyl methacrylate chelating resin containing Fe2O3 particles

Cited by 78 publications

References 17 publications

Kinetic and equilibrium characterization of uranium(VI) adsorption onto carboxylate-functionalized poly(hydroxyethylmethacrylate)-grafted lignocellulosics

Kinetic and equilibrium characterization of uranium(VI) adsorption onto carboxylate-functionalized poly(hydroxyethylmethacrylate)-grafted lignocellulosics

Synthesis and characterization of a new iminodiacetate chelating resin for removal of toxic heavy metal ions from aqueous solution by batch and fixed bed column methods

Ionic solid-impregnated sulphate-crosslinked chitosan for effective adsorption of hexavalent chromium from effluents

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