Adsorptive removal of Co and Sr ions from aqueous solution by synthetic hydroxyapatite nanoparticles

Bin Ma; Won Sik Shin; Sanghwa Oh; Yeon Jin Park; Sang June Choi

doi:10.1080/01496390903484941

Adsorptive removal of Co and Sr ions from aqueous solution by synthetic hydroxyapatite nanoparticles

Bin Ma, Won Sik Shin, Sanghwa Oh, Yeon Jin Park, Sang June Choi

Kyungpook National University

Research output: Contribution to journal › Article › peer-review

44 Scopus citations

Abstract

Hydroxyapatite nanoparticles were synthesized by using the precipitation method with simulated body fluid solution and applied for adsorption of Co²⁺ and Sr²⁺ in aqueous solution. The single-and bi-solute adsorption experiments were performed to evaluate the maximum adsorption capacity of hydroxyapatite nanoparticles for Co²⁺ and Sr²⁺, the effect of temperature and pH, and the influence of simultaneous presence of other competing metal ion in a binary system. The synthesized hydroxyapatite nanoparticles had high adsorption capacity for Co²⁺ and Sr²⁺ due to a high specific surface area. The maximum adsorption capacity and binding energy of Co²⁺ were higher than those of Sr²⁺ in single-solute adsorption. The extended Langmuir model was fitted well for bi-solute competitive adsorption of Co²⁺ and Sr²⁺ onto the hydroxyapatite nanoparticles. Thermodynamic analysis showed that adsorption occurred spontaneously for both metals and was endothermic for Co²⁺, but exothermic for Sr²⁺.

Original language	English
Pages (from-to)	453-462
Number of pages	10
Journal	Separation Science and Technology
Volume	45
Issue number	4
DOIs	https://doi.org/10.1080/01496390903484941
State	Published - Jan 2010

Keywords

Adsorption
Cobalt
Hydroxyapatite nanoparticles
Strontium
Thermodynamic

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title = "Adsorptive removal of Co and Sr ions from aqueous solution by synthetic hydroxyapatite nanoparticles",

abstract = "Hydroxyapatite nanoparticles were synthesized by using the precipitation method with simulated body fluid solution and applied for adsorption of Co2+ and Sr2+ in aqueous solution. The single-and bi-solute adsorption experiments were performed to evaluate the maximum adsorption capacity of hydroxyapatite nanoparticles for Co2+ and Sr2+, the effect of temperature and pH, and the influence of simultaneous presence of other competing metal ion in a binary system. The synthesized hydroxyapatite nanoparticles had high adsorption capacity for Co2+ and Sr2+ due to a high specific surface area. The maximum adsorption capacity and binding energy of Co2+ were higher than those of Sr2+ in single-solute adsorption. The extended Langmuir model was fitted well for bi-solute competitive adsorption of Co2+ and Sr2+ onto the hydroxyapatite nanoparticles. Thermodynamic analysis showed that adsorption occurred spontaneously for both metals and was endothermic for Co2+, but exothermic for Sr2+.",

keywords = "Adsorption, Cobalt, Hydroxyapatite nanoparticles, Strontium, Thermodynamic",

author = "Bin Ma and Shin, {Won Sik} and Sanghwa Oh and Park, {Yeon Jin} and Choi, {Sang June}",

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T1 - Adsorptive removal of Co and Sr ions from aqueous solution by synthetic hydroxyapatite nanoparticles

AU - Ma, Bin

AU - Shin, Won Sik

AU - Oh, Sanghwa

AU - Park, Yeon Jin

AU - Choi, Sang June

PY - 2010/1

Y1 - 2010/1

N2 - Hydroxyapatite nanoparticles were synthesized by using the precipitation method with simulated body fluid solution and applied for adsorption of Co2+ and Sr2+ in aqueous solution. The single-and bi-solute adsorption experiments were performed to evaluate the maximum adsorption capacity of hydroxyapatite nanoparticles for Co2+ and Sr2+, the effect of temperature and pH, and the influence of simultaneous presence of other competing metal ion in a binary system. The synthesized hydroxyapatite nanoparticles had high adsorption capacity for Co2+ and Sr2+ due to a high specific surface area. The maximum adsorption capacity and binding energy of Co2+ were higher than those of Sr2+ in single-solute adsorption. The extended Langmuir model was fitted well for bi-solute competitive adsorption of Co2+ and Sr2+ onto the hydroxyapatite nanoparticles. Thermodynamic analysis showed that adsorption occurred spontaneously for both metals and was endothermic for Co2+, but exothermic for Sr2+.

AB - Hydroxyapatite nanoparticles were synthesized by using the precipitation method with simulated body fluid solution and applied for adsorption of Co2+ and Sr2+ in aqueous solution. The single-and bi-solute adsorption experiments were performed to evaluate the maximum adsorption capacity of hydroxyapatite nanoparticles for Co2+ and Sr2+, the effect of temperature and pH, and the influence of simultaneous presence of other competing metal ion in a binary system. The synthesized hydroxyapatite nanoparticles had high adsorption capacity for Co2+ and Sr2+ due to a high specific surface area. The maximum adsorption capacity and binding energy of Co2+ were higher than those of Sr2+ in single-solute adsorption. The extended Langmuir model was fitted well for bi-solute competitive adsorption of Co2+ and Sr2+ onto the hydroxyapatite nanoparticles. Thermodynamic analysis showed that adsorption occurred spontaneously for both metals and was endothermic for Co2+, but exothermic for Sr2+.

KW - Adsorption

KW - Cobalt

KW - Hydroxyapatite nanoparticles

KW - Strontium

KW - Thermodynamic

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DO - 10.1080/01496390903484941

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SN - 0149-6395

VL - 45

SP - 453

EP - 462

JO - Separation Science and Technology

JF - Separation Science and Technology

IS - 4

ER -

Adsorptive removal of Co and Sr ions from aqueous solution by synthetic hydroxyapatite nanoparticles

Abstract

Keywords

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