Sorption profile of Cd(II) ions onto beach sand from aqueous solutions

Taqvi, Syed Iqleem Haider; Hasany, S. M.; Bhanger, M. I.

doi:10.1016/j.jhazmat.2006.06.080

Cited by 48 publications

(20 citation statements)

References 31 publications

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“…The rate constant, k = 0.13 l 0.02 min -1 , was calculated from the slope of the linear plot with a correlation factor of 0.9582. This was of same order of magnitude as the value of 0.12 min -1 reported for Pb(II) ions sorption onto beach sand in the literature [15].…”

Section: Kinetics Of Sorptionsupporting

confidence: 87%

“…The results of the sieve analysis indicate the presence of a mesh size of 300 lm as the largest percentage by weight. The complete sieve analysis results have been reported earlier [14,15]. Therefore, in all subsequent experiments a mesh size of 300 lm was used.…”

Section: Beach Sand Source and Treatmentmentioning

confidence: 99%

“…In a previous study, beach sand showed an excellent response for the removal of Pb(II) and Cd(II) ions from aqueous solutions, when the batch adsorption technique was applied [14,15]. The most effective aspects of beach sand toward metal removal are very short equilibrium time, as well as resistance to high temperature and acid concentrations.…”

Section: Introductionmentioning

confidence: 98%

“…Various substances, such as ion-exchange resins [5], zeolites [6,7], clay minerals [8,9], river sand [10 -13], and sea beach sand [14,15], have been investigated as adsorbents. Apart from natural materials, different industrial waste materials have been used as adsorbents for the removal of heavy metal ions from water and wastewater, e. g., pottery material, which is a waste of the ceramic industry [16].…”

Section: Introductionmentioning

confidence: 99%

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Sorptive Potential of Beach Sand to Remove Ni(II) Ions: An Equilibrium Isotherm Study

Taqvi¹,

Hasany

Bhanger

2008

CLEAN Soil Air Water

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The potential to remove Ni(II) ions from aqueous solutions using sea beach sand, a carbonate-quartz mineral, was thoroughly investigated. The effects of relevant parameters such as solution pH, adsorbent dose, metal ions concentration, and temperature on Ni(II) sorption onto beach sand were examined. The sorption data followed the Langmuir, Freundlich and Dubinin-Radushkevich (D-R) isotherms. The adsorption was endothermic in nature at ambient temperature and the computation of the parameters, DH, DS and DG indicated the interactions between sorbate and sorbent to be thermodynamically favorable. Equilibrium was achieved very quickly within 30 min of shaking. A pseudo-first order Lagergren equation was used to test the adsorption kinetics. Other kinetic models, e. g., the Morris-Weber and Reichenberg equations, were used to calculate the rate constant of intraparticle diffusion and the fate of the diffusion process, respectively. The influence of some of the common cations and anions were also a subject of this study.

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Section: Kinetics Of Sorptionsupporting

confidence: 87%

Section: Beach Sand Source and Treatmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sorptive Potential of Beach Sand to Remove Ni(II) Ions: An Equilibrium Isotherm Study

Taqvi¹,

Hasany

Bhanger

2008

CLEAN Soil Air Water

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“…D-R isotherm model assumes that the ionic species preferentially bind to most energetically favorable sites of sorbent associated with multilayer adsorption of ions [42]. D-R isotherm is generally described by Eqs.…”

Section: Sorption Isotherm Modelsmentioning

confidence: 99%

Synthesis of aminopropyl triethoxysilane-functionalized silica and its application in speciation studies of vanadium(IV) and vanadium(V)

Erdem

Shahwan

Çağır

et al. 2011

Chemical Engineering Journal

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a b s t r a c tA solid phase extraction sorbent, aminopropyl triethoxysilane-functionalized silica was prepared and used for vanadium speciation prior to inductively coupled plasma mass spectrometric determination. The necessary sorption parameters such as sorption pH, reaction temperature, sorbent amount and sample volume were optimized. The sorption for V(V) and V(IV) under the optimized conditions was 98% (±1) and was lower than 10%, respectively. The sorption process was investigated both from a kinetic perspective and also in terms of Freundlich, Dubinin-Radushkevich and Langmuir isotherm models to characterize the uptake of vanadate ion by the functionalized silica. Desorption from the sorbent was realized with 0.5 mol L −1 thiourea prepared in 0.2 mol L −1 HCl. Among the possible interfering species tested, Te(IV), Se(IV), Se(VI) and Fe(III) showed interference effects with V(V) signal. The validity of the method was first checked via spike recovery experiments with four different types of water; namely ultra pure, bottled drinking, tap, and sea water for different concentrations of V(V). The percent recovery values changed between 87 and 108 for all water types. The accuracy of the proposed methodology was also checked by analyzing a standard reference material (NIST, SRM 1643e) and a good agreement was found between the determined and the certified value. The proposed methodology has also been shown to be applicable for the separate sorption of V(V) in the absence/presence of V(IV) and for the sorption of both V(IV) and V(V) in waters. The amount of V(IV) can then be determined from the difference.

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Biosorption of cadmium(II) from aqueous solution by chitosan encapsulated Zygosaccharomyces rouxii

Jiang

et al. 2012

Env Prog and Sustain Energy

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A new type of biosorbent—chitosan encapsulated Zygosaccharomyces rouxii (CZ) was used to remove Cd(II) from aqueous solution. The CZ with Z. rouxii biomass to chitosan of 4:10 (weight ratio) had high removal percentage of Cd(II) and regular spherical shape. Pseudo‐second‐order kinetic model (R2 > 0.9980) and Freundlich adsorption isotherm model (R2 = 0.9913) were suitable to describe the biosorption process. Effects of contact time, initial pH, initial Cd(II) concentration, and biosorbent dose on Cd(II) adsorption capacity of CZ were studied. CZ had a good performance when the initial pH ranged from 3.0 to 7.0 and could remove 95.15% Cd(II) from aqueous solution with suitable biosorbent dose (15 g L−1) when the initial Cd(II) concentration was 0.2 mmol L−1. Protein and nucleic acid leaching from CZ were greatly reduced compared with Z. rouxii biomass at different pH levels. In addition, five biosorption/desorption/regeneration cycles were proceeded to investigate the reusability of CZ. Laser particle size analyzer, scanning electron microscopy, and energy dispersive spectrometry and pHPZC were used to characterize CZ. This work suggested that CZ has good potential to remove Cd(II) from aqueous solution. © 2012 American Institute of Chemical Engineers Environ Prog, 32: 1101–1110, 2013

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Sorption profile of Cd(II) ions onto beach sand from aqueous solutions

Cited by 48 publications

References 31 publications

Sorptive Potential of Beach Sand to Remove Ni(II) Ions: An Equilibrium Isotherm Study

Sorptive Potential of Beach Sand to Remove Ni(II) Ions: An Equilibrium Isotherm Study

Synthesis of aminopropyl triethoxysilane-functionalized silica and its application in speciation studies of vanadium(IV) and vanadium(V)

Biosorption of cadmium(II) from aqueous solution by chitosan encapsulated Zygosaccharomyces rouxii

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