Adsorption of Pb(II) from aqueous solution to Ni-doped bamboo charcoal

Wang, Yin; Wang, Xin; Wang, Xuejiang; Liu, Mian; Wu, Zhen; Liu, Yang; Xia, Siqing; Zhao, Jianfu

doi:10.1016/j.jiec.2012.08.024

Cited by 76 publications

(22 citation statements)

References 50 publications

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“…Therefore, the adsorbed 1ed ions did not interact or compete with each other and were adsorbed by the formation of almost complete monolayer coverage on the Co/Mo-LDH particles. This phenomenon can obviously confirm that chemisorption was the principal concept in the presented adsorption process [51].…”

Section: Adsorption Mechanismsupporting

confidence: 76%

Water decontamination via the removal of Pb (II) using a new generation of highly energetic surface nano-material: Co +2 Mo +6 LDH

Mostafa

Bakr

Naggar

et al. 2016

Journal of Colloid and Interface Science

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Section: Adsorption Mechanismsupporting

confidence: 76%

Water decontamination via the removal of Pb (II) using a new generation of highly energetic surface nano-material: Co +2 Mo +6 LDH

Mostafa

Bakr

Naggar

et al. 2016

Journal of Colloid and Interface Science

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“…The C max value of Pb(II) ions by the nZVI/rGO composites was higher than that of various materials reported in the previous studies suggesting the great application potential of nZVI/rGO composites for Pb(II) ions removal [9,26,44,45,46,47,48,49,50,51]. Based on the Langmuir isotherm, the C max of Pb(II) ions by the nZVI/rGO composites was calculated to be 910 mg/g, which was close to the experimental value.…”

Section: Resultsmentioning

confidence: 69%

Synthesis and Characterization of Reduced Graphene Oxide-Supported Nanoscale Zero-Valent Iron (nZVI/rGO) Composites Used for Pb(II) Removal

Fan

et al. 2016

Materials

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Reduced graphene oxide-supported nanoscale zero-valent iron (nZVI/rGO) composites were prepared by chemical deposition method and were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy, N2-sorption and X-ray photoelectron spectroscopy (XPS). Operating parameters for the removal process of Pb(II) ions, such as temperature (20–40 °C), pH (3–5), initial concentration (400–600 mg/L) and contact time (20–60 min), were optimized using a quadratic model. The coefficient of determination (R2 > 0.99) obtained for the mathematical model indicates a high correlation between the experimental and predicted values. The optimal temperature, pH, initial concentration and contact time for Pb(II) ions removal in the present experiment were 21.30 °C, 5.00, 400.00 mg/L and 60.00 min, respectively. In addition, the Pb(II) removal by nZVI/rGO composites was quantitatively evaluated by using adsorption isotherms, such as Langmuir and Freundlich isotherm models, of which Langmuir isotherm gave a better correlation, and the calculated maximum adsorption capacity was 910 mg/g. The removal process of Pb(II) ions could be completed within 50 min, which was well described by the pseudo-second order kinetic model. Therefore, the nZVI/rGO composites are suitable as efficient materials for the advanced treatment of Pb(II)-containing wastewater.

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“…The thermodynamic parameters [40] such as the Gibbs free energy change (ΔG°), enthalpy change (ΔH°) and entropy change (ΔS°) were calculated in order to evaluate the thermodynamic feasibility of the adsorption process.…”

Section: Adsorption Thermodynamicsmentioning

confidence: 99%

“…The effect of initial metal concentration on Cr(VI) removal by RSMS, SSMS and PSMS was studied at different initial Cr(VI) concentrations (20,40,60,80 and 100 mg/L) by varying the contact time at 2.0 pH and optimal adsorbent dosage. The removal of Cr(VI) was found to be rapid in the early stages of the adsorption process (Fig.…”

Section: Effect Of Initial Cr(vi) Concentration With Contact Timementioning

confidence: 99%

Efficacy of unmodified and chemically modified Swietenia mahagoni shells for the removal of hexavalent chromium from simulated wastewater

Rangabhashiyam

Selvaraju

2015

Journal of Molecular Liquids

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Adsorption of Pb(II) from aqueous solution to Ni-doped bamboo charcoal

Cited by 76 publications

References 50 publications

Water decontamination via the removal of Pb (II) using a new generation of highly energetic surface nano-material: Co +2 Mo +6 LDH

Water decontamination via the removal of Pb (II) using a new generation of highly energetic surface nano-material: Co +2 Mo +6 LDH

Synthesis and Characterization of Reduced Graphene Oxide-Supported Nanoscale Zero-Valent Iron (nZVI/rGO) Composites Used for Pb(II) Removal

Efficacy of unmodified and chemically modified Swietenia mahagoni shells for the removal of hexavalent chromium from simulated wastewater

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