Sorption of Pb2+, Cd2+, and Sr2+ ions on calcium hydroxyapatite powder obtained by the hydrothermal method
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2008
Authors
Lazarević, SlavicaJanković-Častvan, Ivona
Tanasković, Dušanka
Pavićević, Vladimir
Janaćković, Đorđe
Petrović, Rada
Article (Published version)
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The sorption of Pb2+, Cd2+, and Sr2+ ions from aqueous solutions by carbonate-substituted calcium hydroxyapatite (HAP) obtained by the hydrothermal decomposition of urea and calcium-ethylenediaminetetraacetic acid chelates was investigated. The shift of the point of zero charge (pH(pzc)) of HAP toward lower pH values in solutions of Pb2+ and Cd2+ ions, which was more pronounced for Pb2+ ions than for Cd2+ ions, indicates that specific adsorption of these cations on HAP had occurred. There was no shift of the pH(pzc) in the solution containing Sr2+ ions, suggesting that specific adsorption of this cation on HAP had not occurred. The sorption isotherms suggest that the sequence of the efficiency of sorption by HAP is Pb2+ gt Cd2+ gt Sr2+. Ion exchange is the main mechanism of removal of Sr2+ ions from aqueous solution by apatite, whereas during the sorption of Cd2+ ions, this mechanism occurs simultaneously with the process of specific adsorption. The interaction of the apatite with Pb2+... ions includes the previously mentioned mechanisms and dissolution of the apatite, followed by the precipitation of lead hydroxyapatite.
Keywords:
Sorption / Ion exchange / Metals / Water qualitSource:
Journal of Environmental Engineering, 2008, 134, 8, 683-688Publisher:
- Asce-Amer Soc Civil Engineers, Reston
Funding / projects:
- Sinteza, struktura, svojstva i primena funkcionalnih nanostrukturnih keramičkih i biokeramičkih materijala (RS-MESTD-MPN2006-2010-142070)
DOI: 10.1061/(ASCE)0733-9372(2008)134:8(683)
ISSN: 0733-9372
WoS: 000257763500010
Scopus: 2-s2.0-47749095942
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Lazarević, Slavica AU - Janković-Častvan, Ivona AU - Tanasković, Dušanka AU - Pavićević, Vladimir AU - Janaćković, Đorđe AU - Petrović, Rada PY - 2008 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1240 AB - The sorption of Pb2+, Cd2+, and Sr2+ ions from aqueous solutions by carbonate-substituted calcium hydroxyapatite (HAP) obtained by the hydrothermal decomposition of urea and calcium-ethylenediaminetetraacetic acid chelates was investigated. The shift of the point of zero charge (pH(pzc)) of HAP toward lower pH values in solutions of Pb2+ and Cd2+ ions, which was more pronounced for Pb2+ ions than for Cd2+ ions, indicates that specific adsorption of these cations on HAP had occurred. There was no shift of the pH(pzc) in the solution containing Sr2+ ions, suggesting that specific adsorption of this cation on HAP had not occurred. The sorption isotherms suggest that the sequence of the efficiency of sorption by HAP is Pb2+ gt Cd2+ gt Sr2+. Ion exchange is the main mechanism of removal of Sr2+ ions from aqueous solution by apatite, whereas during the sorption of Cd2+ ions, this mechanism occurs simultaneously with the process of specific adsorption. The interaction of the apatite with Pb2+ ions includes the previously mentioned mechanisms and dissolution of the apatite, followed by the precipitation of lead hydroxyapatite. PB - Asce-Amer Soc Civil Engineers, Reston T2 - Journal of Environmental Engineering T1 - Sorption of Pb2+, Cd2+, and Sr2+ ions on calcium hydroxyapatite powder obtained by the hydrothermal method EP - 688 IS - 8 SP - 683 VL - 134 DO - 10.1061/(ASCE)0733-9372(2008)134:8(683) ER -
@article{ author = "Lazarević, Slavica and Janković-Častvan, Ivona and Tanasković, Dušanka and Pavićević, Vladimir and Janaćković, Đorđe and Petrović, Rada", year = "2008", abstract = "The sorption of Pb2+, Cd2+, and Sr2+ ions from aqueous solutions by carbonate-substituted calcium hydroxyapatite (HAP) obtained by the hydrothermal decomposition of urea and calcium-ethylenediaminetetraacetic acid chelates was investigated. The shift of the point of zero charge (pH(pzc)) of HAP toward lower pH values in solutions of Pb2+ and Cd2+ ions, which was more pronounced for Pb2+ ions than for Cd2+ ions, indicates that specific adsorption of these cations on HAP had occurred. There was no shift of the pH(pzc) in the solution containing Sr2+ ions, suggesting that specific adsorption of this cation on HAP had not occurred. The sorption isotherms suggest that the sequence of the efficiency of sorption by HAP is Pb2+ gt Cd2+ gt Sr2+. Ion exchange is the main mechanism of removal of Sr2+ ions from aqueous solution by apatite, whereas during the sorption of Cd2+ ions, this mechanism occurs simultaneously with the process of specific adsorption. The interaction of the apatite with Pb2+ ions includes the previously mentioned mechanisms and dissolution of the apatite, followed by the precipitation of lead hydroxyapatite.", publisher = "Asce-Amer Soc Civil Engineers, Reston", journal = "Journal of Environmental Engineering", title = "Sorption of Pb2+, Cd2+, and Sr2+ ions on calcium hydroxyapatite powder obtained by the hydrothermal method", pages = "688-683", number = "8", volume = "134", doi = "10.1061/(ASCE)0733-9372(2008)134:8(683)" }
Lazarević, S., Janković-Častvan, I., Tanasković, D., Pavićević, V., Janaćković, Đ.,& Petrović, R.. (2008). Sorption of Pb2+, Cd2+, and Sr2+ ions on calcium hydroxyapatite powder obtained by the hydrothermal method. in Journal of Environmental Engineering Asce-Amer Soc Civil Engineers, Reston., 134(8), 683-688. https://doi.org/10.1061/(ASCE)0733-9372(2008)134:8(683)
Lazarević S, Janković-Častvan I, Tanasković D, Pavićević V, Janaćković Đ, Petrović R. Sorption of Pb2+, Cd2+, and Sr2+ ions on calcium hydroxyapatite powder obtained by the hydrothermal method. in Journal of Environmental Engineering. 2008;134(8):683-688. doi:10.1061/(ASCE)0733-9372(2008)134:8(683) .
Lazarević, Slavica, Janković-Častvan, Ivona, Tanasković, Dušanka, Pavićević, Vladimir, Janaćković, Đorđe, Petrović, Rada, "Sorption of Pb2+, Cd2+, and Sr2+ ions on calcium hydroxyapatite powder obtained by the hydrothermal method" in Journal of Environmental Engineering, 134, no. 8 (2008):683-688, https://doi.org/10.1061/(ASCE)0733-9372(2008)134:8(683) . .