Carbonate adsorption on goethite in competition with phosphate

Rahnemaie, Rasoul; Hiemstra, Tjisse; Riemsdijk, W.H. van

doi:10.1016/j.jcis.2007.07.017

Cited by 120 publications

(107 citation statements)

References 47 publications

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“…In addition, EDTA shows a more negative effect on the Ni(II) uptake than citrate and NTA. 36 . Conventionally, Ni(II) will be complexed in the form of the six-coordinated configuration [39].…”

Section: Structure Analysis Of the Edtmpa-tbot Ligandmentioning

confidence: 99%

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: Structure Analysis Of the Edtmpa-tbot Ligandmentioning

confidence: 99%

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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show abstract

“…The phosphate-bicarbonate interaction has been studied for goethite in the concentration range 0-0.5 M (H)CO 3 (Rahnemaie et al, 2007a). The main carbonate surface species is a bidentate double corner complex (Bargar et al, 2005;Hiemstra et al, 2004).…”

Section: Surface Complexation Modelingmentioning

confidence: 99%

“…For this complex, the charge distribution has also been derived from the MO-DFT optimized geometry (Rahnemaie et al, 2007a). CD modeling (Rahnemaie et al, 2007a) suggests that the carbonate complex (Eq.…”

Section: Surface Complexation Modelingmentioning

confidence: 99%

“…The added solution will buffer the pH and fix the ionic strength. The created conditions stimulate the phosphate desorption process due to (a) the relatively high pH value of the extraction solution and (b) the competitive binding of carbonate ions (Rahnemaie et al, 2007a). In addition (c), the added (bi)carbonate will reduce the concentration of Ca 2+ and Mg 2+ due to precipitation of these ions in solid carbonates.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nanoparticles in natural systems I: The effective reactive surface area of the natural oxide fraction in field samples

Hiemstra

Antelo

Rahnemaie

et al. 2010

Geochimica et Cosmochimica Acta

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145

185

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“…The CD model has been calibrated for the model oxide, i.e. goethite (Rahnemaie et al, 2007). Application of the CD model yields an effective surface area (A) and the amount of reversibly bound phosphate (R ev ).…”

Section: Introductionmentioning

confidence: 99%

Nanoparticles in natural systems II: The natural oxide fraction at interaction with natural organic matter and phosphate

Hiemstra

Antelo

Rotterdam

et al. 2010

Geochimica et Cosmochimica Acta

Self Cite

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Carbonate adsorption on goethite in competition with phosphate

Cited by 120 publications

References 47 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

Nanoparticles in natural systems I: The effective reactive surface area of the natural oxide fraction in field samples

Nanoparticles in natural systems II: The natural oxide fraction at interaction with natural organic matter and phosphate

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