Determination of kinetic and equilibrium parameters of the batch adsorption of Mn(II), Co(II), Ni(II) and Cu(II) from aqueous solution by black carrot (Daucus carota L.) residues

Güzel, Fuat; Yakut, H.; Topal, Giray

doi:10.1016/j.jhazmat.2007.09.087

Cited by 150 publications

(24 citation statements)

References 38 publications

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“…From the results of Langmuir model simulation, the maximum sorption capacity (Q max ) of Pb(II) and Cu(II) increases with increasing temperature, which suggests that the sorption of Pb(II) and Cu(II) on the MCs is promoted at high temperature. The K values increase from 0.790 L/mg at 293.15 K to 1.306 L/mg at 353.15 K for Pb(II) sorption and from 1.136 L/mg at 293.15 K to 3.593 L/mg at 353.15 K for Cu(II) sorption, which indicates that there is a chemical interaction between adsorbent and adsorbate (Gü zel et al 2008). The Langmuir sorption constant (K) is an indicator of an isotherm rise in the region of lower metal concentrations, which indicates the strength and affinity of the adsorbent for the adsorbate (Gupta et al 2005).…”

Section: Effect Of Environmental Parametersmentioning

confidence: 95%

Removal of Pb(II) and Cu(II) from aqueous solution using multiwalled carbon nanotubes/iron oxide magnetic composites

Zhao

Wang

2011

Water Science and Technology

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Multiwalled carbon nanotubes (MWCNTs)/iron oxide magnetic composites (named as MCs) were prepared by co-precipitation method, and were characterised by scanning electron microscope (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) in detail. The prepared MCs were employed as an adsorbent for the removal of Pb(II) and Cu(II) ions from wastewater in heavy metal ion pollution cleanup. The results demonstrated that the sorption of Pb(II) and Cu(II) ions was strongly dependent on pH and temperature. The experimental data were well described by Langmuir model, and the monolayer sorption capacity of MCs was found to vary from 10.02 to 31.25 mg/g for Pb(II) and from 3.11 to 8.92 mg/g for Cu(II) at temperature increasing from 293.15 to 353.15 K at pH 5.50. The sorption capacity of Pb(II) on MCs was higher than that of Cu(II), which was attributed to their ionic radius, hydration energies and hydrolysis of their hydroxides. The thermodynamic parameters (i.e., ΔH(0), ΔS(0) and ΔG(0)) were calculated from temperature dependent sorption isotherms, and the results indicated that the sorption of Pb(II) and Cu(II) ions on MCs were spontaneous and endothermic processes.

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Section: Effect Of Environmental Parametersmentioning

confidence: 95%

Removal of Pb(II) and Cu(II) from aqueous solution using multiwalled carbon nanotubes/iron oxide magnetic composites

Zhao

Wang

2011

Water Science and Technology

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“…From this table, one can note that the absorption capacities of Ti-MCM-48 for both Co(II) and Ni(II) are higher than those reported in the literatures. [44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59] Therefore, the Ti-MCM-48 would work well to remove Co(II) and Ni(II) from pollution water effectively.…”

Section: Isothermal Modelsmentioning

confidence: 99%

Study on Adsorption of Co(II) and Ni(II) onto Mesoporous Ti-Containing MCM-48

Chen

Fang²,

Miao³

et al. 2011

J. Nanosci. Nanotech.

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Ti-containing MCM-48 (Ti-MCM-48) material with mesoporous structure was synthesized and characterized, and the absorption processes of Co(II) and Ni(II) on the material were investigated in detail in the present study. The Ti- MCM-48 was synthesized by hydrothermal reaction and characterized by XRD, FT-IR and nitrogen sorption methods. Optimum pH value for maximum adsorption rate is 8.0, and the saturated adsorption capacities of Ti-MCM-48 for Co(II) and Ni(II) are 9.870 and 22.94 mg g(-1) respectively, which are greater than those of the reported materials Adsorption isotherms of Co(II) and Ni(II) on Ti-MCM-48 accord well with the Langmuir adsorption models. Kinetic data of adsorption reactions and the adsorption equilibrium parameters were also determined, and the obtained data correlated linearly with the pseudo-second order equation.

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“…Generally, pseudo-first-order rate equation is only suitable for characterizing the beginning adsorption process and not feasible for the whole one, while pseudo-second-order rate equation is suitable, and hence it is employed in this study to fit the kinetic data [19,20].…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Surface modification on a hyper-cross-linked polymeric adsorbent by multiple phenolic hydroxyl groups to be used as a specific adsorbent for adsorptive removal of p-nitroaniline from aqueous solution

Huang

2010

Journal of Colloid and Interface Science

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Determination of kinetic and equilibrium parameters of the batch adsorption of Mn(II), Co(II), Ni(II) and Cu(II) from aqueous solution by black carrot (Daucus carota L.) residues

Cited by 150 publications

References 38 publications

Removal of Pb(II) and Cu(II) from aqueous solution using multiwalled carbon nanotubes/iron oxide magnetic composites

Removal of Pb(II) and Cu(II) from aqueous solution using multiwalled carbon nanotubes/iron oxide magnetic composites

Study on Adsorption of Co(II) and Ni(II) onto Mesoporous Ti-Containing MCM-48

Surface modification on a hyper-cross-linked polymeric adsorbent by multiple phenolic hydroxyl groups to be used as a specific adsorbent for adsorptive removal of p-nitroaniline from aqueous solution

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