Adsorptive removal of Pb2+ form aqueous solution by macrocyclic calix[4]naphthalene: kinetic, thermodynamic, and isotherm analysis

Ahmad, Rais; Kumar, Rajeev; Laskar, Mohammad Asaduddin

doi:10.1007/s11356-012-0838-8

Cited by 24 publications

(14 citation statements)

References 51 publications

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“…The pseudo first order kinetic model was used to treat the experimental data obtained by plotting log(qe-qt) vs. equilibration time ( log q e log C e obtained by plotting t/qt values against time t (Figure 7). The pseudo second order best describes the kinetics of the adsorption process and this agrees with other results reported in the literature [39,54]. The result obtained from the kinetic plot favors chemisorption mechanistic pathway rather than physisorption.…”

Section: Adsorption Reaction Based Modelssupporting

confidence: 89%

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A Novel Approach for the Removal of Lead(II) Ion from Wastewater Using Mucilaginous Leaves of Diceriocaryum eriocarpum Plant

et al. 2015

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Lead(II) ion is a very toxic element known to cause detrimental effects to human health even at very low concentrations. An adsorbent prepared using mucilaginous leaves from Diceriocaryum eriocarpum plant (DEP) was used for the adsorption of lead(II) ion from aqueous solution. Batch experiments were performed on simulated aqueous solutions under optimized conditions of adsorbent dosage, contact time, pH and initial lead(II) ion concentration at 298 K. The Langmuir isotherm model more suitably described the adsorption process than the Freundlich model with linearized coefficients of 0.9661 and 0.9547, respectively. Pseudo-second order kinetic equation best described the kinetics of the reaction. Fourier transform infra-red analysis confirmed the presence of amino (-NH), carbonyl (-C=O) and hydroxyl (-OH) functional groups. Application of the prepared adsorbent to wastewater samples of 10 mg/L and 12 mg/L of lead(II) ion concentration taken from a waste stabilization pond showed removal efficiencies of 95.8% and 96.4%, respectively. Futhermore, 0.1 M HCl was a better desorbing agent than 0.1 M NaOH and de-ionized water. The experimental data obtained demonstrated that mucilaginous leaves from DEP can be used as a suitable adsorbent for lead(II) ion removal from wastewater.

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Section: Adsorption Reaction Based Modelssupporting

confidence: 89%

“…NaOH and de-ionized water showed desorption efficiencies of 18% and 2%, respectively. Desorption is beneficial for the separation and enrichment of lead(II) ion as well as the regeneration of the adsorbent [54].…”

Section: Desorption Studiesmentioning

confidence: 99%

A Novel Approach for the Removal of Lead(II) Ion from Wastewater Using Mucilaginous Leaves of Diceriocaryum eriocarpum Plant

et al. 2015

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“…The metal salts of Pb(NO 3 ) 2, Cd(NO 3 ) 2, Hg(NO 3 ) 2 and Cr(NO 3 ) 3 .9H 2 O were purchased from E. Merck. The metal solutions with certain concentration were prepared by solubilizing the nitrate salts with deionized water.…”

Section: Materials and Instrumentationmentioning

confidence: 99%

“…Heavy metals were notoriously known due to their toxicity and bioaccumulation properties. In addition, several health damage were correlated to the heavy metal contamination [1][2][3][4] . Therefore, an effective treatment to remove the heavy metal ions from water or wastewater is highly required.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Study of Pb(II), Cd(II), Hg(II) And Cr(III) Onto Calix[4]Resorcinarene Derivative

Anwar¹,

Jumina²,

Siswanta³

et al. 2016

Orient. J. Chem

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In this study, the removal of several heavy metal ions of Pb(II), Cd(II), Hg(II) and Cr(III) from aqueous medium via sorption process onto calix[4]resorcinarene derivative was investigated. The used adsorbent was highly oxygenated calix[4]resorcinarene namely C-4-hydroxyphenylcalix [4] resorcinarene. Several adsorption parameters were studied including pH, adsorbent dosage, interaction time as well as the kinetic studies. While the maximum removals of Pb(II), Cd(II) and Hg(II) were observed in pH 5, the removal of Cr(III) reached the maximum value at pH 6. The optimum adsorbent dosages for Pb(II), Hg(II) and Cr(III) were 0.025 g, whereas that for Cd(II) was 0.05 g. The kinetic data were evaluated by using three kinetic models of first order model of Santosa, pseudofirst order of Lagergren and pseudo-second order of Ho. The results showed that the adsorption of these metal ions could be well described with Ho's pseudo-first order model. Keyword: Calix[4]resorcinarene derivative, adsorption and heavy metal ions.

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“…Again, Ahmad et al, (2013) used expensive resins and/or polymeric extractant of metals which is gradually giving way to the use of agricultural waste as low cost adsorbents. A promising and effective process in the removal of heavy metal pollutant is offered by biosorption.…”

Section: Introductionmentioning

confidence: 99%

The Potential of Coriandrum Sativum L. Seeds in the Remediation of Waste Water

Laskar¹,

Ali²,

Siddiqui³

2016

IJAST

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Adsorptive removal of Pb2+ form aqueous solution by macrocyclic calix[4]naphthalene: kinetic, thermodynamic, and isotherm analysis

Cited by 24 publications

References 51 publications

A Novel Approach for the Removal of Lead(II) Ion from Wastewater Using Mucilaginous Leaves of Diceriocaryum eriocarpum Plant

A Novel Approach for the Removal of Lead(II) Ion from Wastewater Using Mucilaginous Leaves of Diceriocaryum eriocarpum Plant

Adsorption Study of Pb(II), Cd(II), Hg(II) And Cr(III) Onto Calix[4]Resorcinarene Derivative

The Potential of Coriandrum Sativum L. Seeds in the Remediation of Waste Water

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