Effect of anions and cations on cadmium sorption kinetics from aqueous solutions by chitin: experimental studies and modeling

Benaïssa, H.; Benguella, Belkacem

doi:10.1016/j.envpol.2003.12.014

Cited by 60 publications

(20 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Generally the presence of chloride or sulfate ions inhibits cadmium uptake. A similar trend was also reported in the literature [34][35][36][37]. As the concentration of lead increased from 20 mg L −1 to 100 mg L −1 lead uptake decreased from 91.59 to 82.05%.…”

Section: -6 Effect Of Presence Of Anions and Lead On Adsorption Of supporting

confidence: 84%

Cadmium removal from aqueous solutions using biosorbent Syzygium cumini leaf powder: Kinetic and equilibrium studies

Rao

Anand

Venkateswarlu

2010

Korean J. Chem. Eng.

View full text Add to dashboard Cite

Syzygium cumini L. leaf powder and Cd(II) loaded samples were characterized using FTIR and SEM techniques. The biosorption of cadmium ions from aqueous solution was studied in a batch adsorption system as a function of pH, contact time, adsorbate, adsorbent, anion and cation concentrations. The biosorption capacities and rates of transfer of cadmium ions onto S. cumini L. were evaluated. The kinetics could be best described by both linear and nonlinear pseudo-second order models. The isothermic data fitted to various models in the order Freundlich>Redlich-Peterson>Langmuir>Temkin. The maximum adsorption capacity of S. cumini L. leaves at room temperature was estimated to be 34.54 mg g −1 . The negative values of ∆G 0 indicated the feasibility of the adsorption process. The endothermic nature was confirmed by the positive value of the enthalpy change (∆H 0 =3.7 kJ mol −1 ). The positive value of entropy change (∆S 0 =16.87 J mol −1 K −1 ) depicted internal structural changes during the adsorption process.

show abstract

Section: -6 Effect Of Presence Of Anions and Lead On Adsorption Of supporting

confidence: 84%

Cadmium removal from aqueous solutions using biosorbent Syzygium cumini leaf powder: Kinetic and equilibrium studies

Rao

Anand

Venkateswarlu

2010

Korean J. Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…5 shows that both chloride and sulfate ions have adverse effect on Cd(II) adsorption. Adverse effect of anions has been reported by Benaissa and Benguella [31] during study of effect of anion on Cd(II) sorption on chitin. A decrease in Cd(II) uptake capacity in the presence of chloride, sulfate, or carbonate in the order CO 3 > SO 4 > Cl was observed.…”

Section: Effect Of Presence Of Competing Ionsmentioning

confidence: 91%

Adsorption of Cadmium from Aqueous Solution by Ficus religiosa Leaf Powder and Characterization of Loaded Biosorbent

Rao

Anand

Venkateswarlu

2011

Clean Soil Air Water

View full text Add to dashboard Cite

The present investigation evaluates the adsorption effectiveness of Cd(II) ions on Ficus religiosa leaf powder (FRL). The experimental parameters chosen included time, pH, particle size, temperature, adsorbate, anion, and Pb(II) concentrations. The time data followed pseudo-second-order kinetics. Cd(II) adsorption increased from 1.38 to 75.17% with the increase in pH from 2 to 4 and further increase in pH to 5.5 resulted in its marginal increase to 77.52%. Based on regression coefficient values, the isothermic data fitted the various models in the order Langmuir > Redlich-Peterson > Temkin > Freundlich model. The maximum loading capacity of FRL was estimated to be 27.14 mg g , respectively. SEM-EPMA of the loaded FRL showed Cd(II) distribution at specific sites. The XRD patterns of Cd(II) loaded FRL sample showed disappearance of some peaks corresponding to b-Ca(PO 3 ) 2 ; shifting of peaks and decrease in %RI corresponding to g-CaSO 4 phase. Positive shift of IR bands for the Cd(II) loaded sample was observed.

show abstract

“…The occurrence of heavy metals especially cadmium and nickel in industrial effluents beyond permissible limits affects human health as well as natural ecosystem [1][2][3][4][5][6]. The prevalent methodologies [7,8] for effluent treatment are found to be either inadequate or expensive.…”

Section: Introductionmentioning

confidence: 99%

Biosorption of cadmium and nickel by functionalized husk of Lathyrus sativus

Panda

Das

Guha

2008

Colloids and Surfaces B: Biointerfaces

View full text Add to dashboard Cite

Effect of anions and cations on cadmium sorption kinetics from aqueous solutions by chitin: experimental studies and modeling

Cited by 60 publications

References 16 publications

Cadmium removal from aqueous solutions using biosorbent Syzygium cumini leaf powder: Kinetic and equilibrium studies

Cadmium removal from aqueous solutions using biosorbent Syzygium cumini leaf powder: Kinetic and equilibrium studies

Adsorption of Cadmium from Aqueous Solution by Ficus religiosa Leaf Powder and Characterization of Loaded Biosorbent

Biosorption of cadmium and nickel by functionalized husk of Lathyrus sativus

Contact Info

Product

Resources

About