Removal of Cs1+, Sr2+ and Co2+ from aqueous solutions by adsorption on natural clinoptilolite
Apstrakt
The adsorption properties of local clinoptilolite (Serbia) towards Cs+, Co2+, and Sr2+ were investigated by batch equilibration technique. The influence of equilibration time, initial metal cation concentration, solution PH and presence of EDTA on these properties was studied and discussed. Kinetic data were found to be well fitted with pseudo-second order kinetic model. Cs+ is preferably adsorbed by the natural clinoptilolite, followed by Sr2+ and CO2+. The Langmuir adsorption isotherm was used to determine the adsorption capacities from both single and mixed metal solutions. At PH range of 3-12 the adsorption of Cs+ remains almost constant, while at low PH (2-3) the adsorption is lesser. At initial PH range of 2-10 adsorption of Sr2+ remains approximately stable, whereas at initial PH GT 10 adsorption increases significantly. The adsorption of Co2+ is low at low PH but increased remarkably with increasing PH and precipitated at pH GT 8. Cs+ adsorption on the clinoptitolite was not af...fected by the presence of EDTA, while the presence of EDTA hinders the adsorption of Co2+ and Sr-2+ on clinoptilolite. (c) 2006 Elsevier B.V. All rights reserved.
Ključne reči:
clinoptilolite / metal immobilization / equilibrium isotherm / kineticsIzvor:
Applied Clay Science, 2007, 35, 1-2, 139-144
DOI: 10.1016/j.clay.2006.08.004
ISSN: 0169-1317
WoS: 000243825800017
Scopus: 2-s2.0-33845887756
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Smičiklas, Ivana D. AU - Dimović, Slavko AU - Plećaš, Ilija B. PY - 2007 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3149 AB - The adsorption properties of local clinoptilolite (Serbia) towards Cs+, Co2+, and Sr2+ were investigated by batch equilibration technique. The influence of equilibration time, initial metal cation concentration, solution PH and presence of EDTA on these properties was studied and discussed. Kinetic data were found to be well fitted with pseudo-second order kinetic model. Cs+ is preferably adsorbed by the natural clinoptilolite, followed by Sr2+ and CO2+. The Langmuir adsorption isotherm was used to determine the adsorption capacities from both single and mixed metal solutions. At PH range of 3-12 the adsorption of Cs+ remains almost constant, while at low PH (2-3) the adsorption is lesser. At initial PH range of 2-10 adsorption of Sr2+ remains approximately stable, whereas at initial PH GT 10 adsorption increases significantly. The adsorption of Co2+ is low at low PH but increased remarkably with increasing PH and precipitated at pH GT 8. Cs+ adsorption on the clinoptitolite was not affected by the presence of EDTA, while the presence of EDTA hinders the adsorption of Co2+ and Sr-2+ on clinoptilolite. (c) 2006 Elsevier B.V. All rights reserved. T2 - Applied Clay Science T1 - Removal of Cs1+, Sr2+ and Co2+ from aqueous solutions by adsorption on natural clinoptilolite VL - 35 IS - 1-2 SP - 139 EP - 144 DO - 10.1016/j.clay.2006.08.004 ER -
@article{ author = "Smičiklas, Ivana D. and Dimović, Slavko and Plećaš, Ilija B.", year = "2007", abstract = "The adsorption properties of local clinoptilolite (Serbia) towards Cs+, Co2+, and Sr2+ were investigated by batch equilibration technique. The influence of equilibration time, initial metal cation concentration, solution PH and presence of EDTA on these properties was studied and discussed. Kinetic data were found to be well fitted with pseudo-second order kinetic model. Cs+ is preferably adsorbed by the natural clinoptilolite, followed by Sr2+ and CO2+. The Langmuir adsorption isotherm was used to determine the adsorption capacities from both single and mixed metal solutions. At PH range of 3-12 the adsorption of Cs+ remains almost constant, while at low PH (2-3) the adsorption is lesser. At initial PH range of 2-10 adsorption of Sr2+ remains approximately stable, whereas at initial PH GT 10 adsorption increases significantly. The adsorption of Co2+ is low at low PH but increased remarkably with increasing PH and precipitated at pH GT 8. Cs+ adsorption on the clinoptitolite was not affected by the presence of EDTA, while the presence of EDTA hinders the adsorption of Co2+ and Sr-2+ on clinoptilolite. (c) 2006 Elsevier B.V. All rights reserved.", journal = "Applied Clay Science", title = "Removal of Cs1+, Sr2+ and Co2+ from aqueous solutions by adsorption on natural clinoptilolite", volume = "35", number = "1-2", pages = "139-144", doi = "10.1016/j.clay.2006.08.004" }
Smičiklas, I. D., Dimović, S.,& Plećaš, I. B.. (2007). Removal of Cs1+, Sr2+ and Co2+ from aqueous solutions by adsorption on natural clinoptilolite. in Applied Clay Science, 35(1-2), 139-144. https://doi.org/10.1016/j.clay.2006.08.004
Smičiklas ID, Dimović S, Plećaš IB. Removal of Cs1+, Sr2+ and Co2+ from aqueous solutions by adsorption on natural clinoptilolite. in Applied Clay Science. 2007;35(1-2):139-144. doi:10.1016/j.clay.2006.08.004 .
Smičiklas, Ivana D., Dimović, Slavko, Plećaš, Ilija B., "Removal of Cs1+, Sr2+ and Co2+ from aqueous solutions by adsorption on natural clinoptilolite" in Applied Clay Science, 35, no. 1-2 (2007):139-144, https://doi.org/10.1016/j.clay.2006.08.004 . .