Tags

Type your tag names separated by a space and hit enter

Adsorptive removal of Pb(II) by activated carbon prepared from Spartina alterniflora: equilibrium, kinetics and thermodynamics.
Bioresour Technol. 2009 Jun; 100(11):2810-5.BT

Abstract

Low-cost activated carbon was prepared from Spartina alterniflora by phosphoric acid activation for the removal of Pb(II) from dilute aqueous solution. The effect of experimental parameters such as pH, initial concentration, contact time and temperature on the adsorption was studied. The obtained data were fitted with the Langmuir and Freundlich equations to describe the equilibrium isotherms. The kinetic data were fitted with the Lagergren-first-order, pseudo-second-order and Elovich models. It was found that pH played a major role in the adsorption process. The maximum adsorption capacity for Pb(II) on S. alterniflora activated carbon (SAAC) calculated from Langmuir isotherm was more than 99 mg g(-1). The optimum pH range for the removal of Pb(II) was 4.8-5.6. The Freundlich isotherm model was found to best describe the experimental data. The kinetic rates were best fitted to the pseudo-second-order model. Thermodynamic study showed the adsorption was a spontaneous exothermic process.

Links

Publisher Full Text

Authors+Show Affiliations

Li K
College of Engineering, Nanjing Agricultural University, Dianjiangtai Road N. 40, Nanjing 210031, China. kqlee@njau.edu.cn
Wang X
No affiliation info available

MeSH

AdsorptionCharcoalComputer SimulationFiltrationKineticsLeadModels, ChemicalPoaceaeThermodynamics

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19208469

Citation

Li, Kunquan, and Xiaohua Wang. "Adsorptive Removal of Pb(II) By Activated Carbon Prepared From Spartina Alterniflora: Equilibrium, Kinetics and Thermodynamics." Bioresource Technology, vol. 100, no. 11, 2009, pp. 2810-5.
Li K, Wang X. Adsorptive removal of Pb(II) by activated carbon prepared from Spartina alterniflora: equilibrium, kinetics and thermodynamics. Bioresour Technol. 2009;100(11):2810-5.
Li, K., & Wang, X. (2009). Adsorptive removal of Pb(II) by activated carbon prepared from Spartina alterniflora: equilibrium, kinetics and thermodynamics. Bioresource Technology, 100(11), 2810-5. https://doi.org/10.1016/j.biortech.2008.12.032
Li K, Wang X. Adsorptive Removal of Pb(II) By Activated Carbon Prepared From Spartina Alterniflora: Equilibrium, Kinetics and Thermodynamics. Bioresour Technol. 2009;100(11):2810-5. PubMed PMID: 19208469.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorptive removal of Pb(II) by activated carbon prepared from Spartina alterniflora: equilibrium, kinetics and thermodynamics. AU - Li,Kunquan, AU - Wang,Xiaohua, Y1 - 2009/02/08/ PY - 2008/10/01/received PY - 2008/12/11/revised PY - 2008/12/15/accepted PY - 2009/2/12/entrez PY - 2009/2/12/pubmed PY - 2009/5/27/medline SP - 2810 EP - 5 JF - Bioresource technology JO - Bioresour Technol VL - 100 IS - 11 N2 - Low-cost activated carbon was prepared from Spartina alterniflora by phosphoric acid activation for the removal of Pb(II) from dilute aqueous solution. The effect of experimental parameters such as pH, initial concentration, contact time and temperature on the adsorption was studied. The obtained data were fitted with the Langmuir and Freundlich equations to describe the equilibrium isotherms. The kinetic data were fitted with the Lagergren-first-order, pseudo-second-order and Elovich models. It was found that pH played a major role in the adsorption process. The maximum adsorption capacity for Pb(II) on S. alterniflora activated carbon (SAAC) calculated from Langmuir isotherm was more than 99 mg g(-1). The optimum pH range for the removal of Pb(II) was 4.8-5.6. The Freundlich isotherm model was found to best describe the experimental data. The kinetic rates were best fitted to the pseudo-second-order model. Thermodynamic study showed the adsorption was a spontaneous exothermic process. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/19208469/Adsorptive_removal_of_Pb_II__by_activated_carbon_prepared_from_Spartina_alterniflora:_equilibrium_kinetics_and_thermodynamics_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(08)01089-4 DB - PRIME DP - Unbound Medicine ER -