Removal of copper ions from aqueous solutions by a new sorbent: Polyethyleneiminemethylene phosphonic acid

Ferrah, Nacer; Abderrahim, Omar; Didi, Mohamed Amine; Villemin, Didier

doi:10.1016/j.desal.2010.11.035

Cited by 49 publications

(24 citation statements)

References 48 publications

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“…The peak at 1322 cm −1 in correlation with the C-N group almost completely disappears, and the formation of the N-Ni(II) bond can be validated [28]. In addition, the decrease in intensity for the peak at 1650 cm −1 accompanied by a negative shift of 15 cm −1 may be due to the fact that Ni(II) is complexed by the O-H group of the EDTMPA molecule [15,45]. …”

Section: Ftir Spectramentioning

confidence: 92%

DFT Investigation of the Effects of Coexisting Cations and Complexing Reagents on Ni(II) Adsorption by a Polyvinylidene Fluoride-Type Chelating Membrane Bearing Poly(Amino Phosphonic Acid) Groups

Wang

Song

Cui

et al. 2017

Metals

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Abstract:A polyvinylidene fluoride (PVDF)-type chelating membrane bearing poly(amino phosphonic acid) groups, denoted as ethylenediamine tetra(methylene phosphonic acid) (EDTMPA)-tetrabutyl orthotitanate (TBOT)/PVDF, was employed to remove Ni(II) from the aqueous solution. The effects of coexisting Ca(II), Pb(II), citrate, nitrilotriacetic acid (NTA) and ethylenediaminetetraacetic acid (EDTA) on the Ni(II) adsorption by this chelating membrane were revealed using density functional theory (DFT) calculations. Pb(II) showed a more detrimental effect than Ca(II) on the Ni(II) uptake; EDTA interfered with the capture of Ni(II) more remarkably than citrate and NTA. The results derived from DFT calculations were consistent with the experimental data. Ni(II) and Pb(II) showed more excellent affinity to the EDTMPA-TBOT/PVDF membrane than Ca(II). The stabilities between Ni(II) and the [EDTMPA-TBOT] 7− chelating ligand of the membrane and those between Ni(II) and the three aforementioned complexing reagents followed the sequence:The complexation between Ni(II) and the chelating membrane was prominent with the presence of citrate, NTA and EDTA.

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Section: Ftir Spectramentioning

confidence: 92%

DFT Investigation of the Effects of Coexisting Cations and Complexing Reagents on Ni(II) Adsorption by a Polyvinylidene Fluoride-Type Chelating Membrane Bearing Poly(Amino Phosphonic Acid) Groups

Wang

Song

Cui

et al. 2017

Metals

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“…This is due to the reduction in true biosorption of metal ions by the blockage of active sites by metal precipitation. The precipitation of Zn as hydroxide occurred at pH 7-12, while precipitation of Cu occurred at pH > 6 ( Gupta et al, 2010;Ferrah et al, 2011). However, Cu uptake was consistently higher than Zn uptake over the whole range of pH.…”

Section: Effect Of Solution Ph On Heavy Metal Adsorptionmentioning

confidence: 84%

Novel Agricultural Waste Adsorbent,Cyperus rotundus, for Removal of Heavy Metal Mixtures from Aqueous Solutions

Ramesh

Gandhimathi

Joesun

et al. 2013

Environmental Engineering Science

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An agricultural waste, Cyperus rotundus (CR), was used as a low-cost adsorbent to remove two toxic heavy metal ions (copper [Cu] and zinc [Zn]) from aqueous solutions in single and binary systems. Surface characteristics of CR were investigated using Fourier transform infrared (FTIR), x-ray diffraction, and scanning electron microscopy. Effects of CR dosage and contact time were investigated at 30°C. Kinetic and isotherm aspects of heavy metal adsorption were studied. Adsorption kinetics of heavy metals were studied in single and binary systems and rate sorption was found to conform to a pseudo second-order kinetic model. Intraparticle diffusion plots showed that the adsorption processes involve multistep kinetic stages. Isotherm aspects of heavy metals in single and binary systems followed the Freundlich isotherm. Maximum adsorption capacity of CR for Cu and Zn was 500 mg/g and 208 mg/g for the single system. Results indicated that CR is effective for adsorption of Cu and Zn from aqueous solutions.

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“…5. When the pH of the solution was higher than 6.0, precipitation of Cu 2+ ions as Cu(OH) 2 would occur spontaneously [34]. Therefore, the measured pH range was from 2.0 to 5.0.…”

Section: Ph Effect On the Adsorptionmentioning

confidence: 99%

Functionalization of polyacrylonitrile nanofiber mat via surface-initiated atom transfer radical polymerization for copper ions removal from aqueous solution

Wang

Jia

Pan

et al. 2014

Desalination and Water Treatment

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A B S T R A C TPoly (acrylic acid) (PAAc)-functionalized PAN nanofiber (PAN-COOH) mats were prepared via electrospinning followed by atom transfer radical polymerization for the removal of copper ions from aqueous solution. Attenuated total reflections Fourier transform infrared and X-ray photoelectron spectroscopy results confirmed the presence of PAAc layer on the surface of PAN nanofibers. The morphology of PAN-COOH nanofibers was studied by scanning electron microscopy. Adsorption results indicated that the adsorption capacity was pH dependent. Adsorption equilibrium reached within 30 min as the initial solution concentration increased from 108 to 268 mg/L, and the process can be described using the pseudosecond-order model. Isotherm data fitted well to the Langmuir isotherm model. Desorption results showed that adsorption capacity can remain up to 90% after five times usage.

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Removal of copper ions from aqueous solutions by a new sorbent: Polyethyleneiminemethylene phosphonic acid

Cited by 49 publications

References 48 publications

DFT Investigation of the Effects of Coexisting Cations and Complexing Reagents on Ni(II) Adsorption by a Polyvinylidene Fluoride-Type Chelating Membrane Bearing Poly(Amino Phosphonic Acid) Groups

DFT Investigation of the Effects of Coexisting Cations and Complexing Reagents on Ni(II) Adsorption by a Polyvinylidene Fluoride-Type Chelating Membrane Bearing Poly(Amino Phosphonic Acid) Groups

Novel Agricultural Waste Adsorbent,Cyperus rotundus, for Removal of Heavy Metal Mixtures from Aqueous Solutions

Functionalization of polyacrylonitrile nanofiber mat via surface-initiated atom transfer radical polymerization for copper ions removal from aqueous solution

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