Kinetics and thermodynamic aspect of the adsorption of Fe(III) on HTTA-imbedded polyurethane foam

M. M. Saeed; A. Rusheed; N. Ahmed

doi:10.1007/BF02039699

Kinetics and thermodynamic aspect of the adsorption of Fe(III) on HTTA-imbedded polyurethane foam

M. M. Saeed^*, A. Rusheed, N. Ahmed

^*Corresponding author for this work

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

10 Scopus citations

Abstract

The batch kinetics of Fe(III) adsorption on HTTA-loaded polyurethane (PU) foam have been investigated. The rate of controlling the adsorption is found to be intraparticle diffusion. The reaction rate of adsorption and desorption was also evaluated and found to increase and decrease with temperature, respectively. This indicates an endothermic adsorption behavior of Fe(III)on HTTA loaded PU foam. The activation energy of adsorption (80 ± 10 kJ · mol^-1) and of desorption (-45 ± ± 2 kJ · mol^-1) indicates the chemical adsorption rather than physical adsorption. The isosteric heat of adsorption (ΔH_ads) was found to be -82.7 ± 5.05 kJ · mol. This shows the formation of new chemical bonds among Fe(III)-HTTA-PU foam. The thermodynamic parameters of ΔG, ΔH and ΔS, and equilibrium constant K_C have been calculated. These functions further support that the process of adsorption of Fe(III) on HTTA-loaded PU foam is endothermic and chemisorption, stabilized through thermodynamic functions.

Original language	English
Pages (from-to)	293-303
Number of pages	11
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	211
Issue number	2
DOIs	https://doi.org/10.1007/BF02039699
State	Published - 1996
Externally published	Yes

ASJC Scopus subject areas

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

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10.1007/BF02039699

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title = "Kinetics and thermodynamic aspect of the adsorption of Fe(III) on HTTA-imbedded polyurethane foam",

abstract = "The batch kinetics of Fe(III) adsorption on HTTA-loaded polyurethane (PU) foam have been investigated. The rate of controlling the adsorption is found to be intraparticle diffusion. The reaction rate of adsorption and desorption was also evaluated and found to increase and decrease with temperature, respectively. This indicates an endothermic adsorption behavior of Fe(III)on HTTA loaded PU foam. The activation energy of adsorption (80 ± 10 kJ · mol-1) and of desorption (-45 ± ± 2 kJ · mol-1) indicates the chemical adsorption rather than physical adsorption. The isosteric heat of adsorption (ΔHads) was found to be -82.7 ± 5.05 kJ · mol. This shows the formation of new chemical bonds among Fe(III)-HTTA-PU foam. The thermodynamic parameters of ΔG, ΔH and ΔS, and equilibrium constant KC have been calculated. These functions further support that the process of adsorption of Fe(III) on HTTA-loaded PU foam is endothermic and chemisorption, stabilized through thermodynamic functions.",

author = "Saeed, \{M. M.\} and A. Rusheed and N. Ahmed",

year = "1996",

doi = "10.1007/BF02039699",

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journal = "Journal of Radioanalytical and Nuclear Chemistry",

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TY - JOUR

T1 - Kinetics and thermodynamic aspect of the adsorption of Fe(III) on HTTA-imbedded polyurethane foam

AU - Saeed, M. M.

AU - Rusheed, A.

AU - Ahmed, N.

PY - 1996

Y1 - 1996

N2 - The batch kinetics of Fe(III) adsorption on HTTA-loaded polyurethane (PU) foam have been investigated. The rate of controlling the adsorption is found to be intraparticle diffusion. The reaction rate of adsorption and desorption was also evaluated and found to increase and decrease with temperature, respectively. This indicates an endothermic adsorption behavior of Fe(III)on HTTA loaded PU foam. The activation energy of adsorption (80 ± 10 kJ · mol-1) and of desorption (-45 ± ± 2 kJ · mol-1) indicates the chemical adsorption rather than physical adsorption. The isosteric heat of adsorption (ΔHads) was found to be -82.7 ± 5.05 kJ · mol. This shows the formation of new chemical bonds among Fe(III)-HTTA-PU foam. The thermodynamic parameters of ΔG, ΔH and ΔS, and equilibrium constant KC have been calculated. These functions further support that the process of adsorption of Fe(III) on HTTA-loaded PU foam is endothermic and chemisorption, stabilized through thermodynamic functions.

AB - The batch kinetics of Fe(III) adsorption on HTTA-loaded polyurethane (PU) foam have been investigated. The rate of controlling the adsorption is found to be intraparticle diffusion. The reaction rate of adsorption and desorption was also evaluated and found to increase and decrease with temperature, respectively. This indicates an endothermic adsorption behavior of Fe(III)on HTTA loaded PU foam. The activation energy of adsorption (80 ± 10 kJ · mol-1) and of desorption (-45 ± ± 2 kJ · mol-1) indicates the chemical adsorption rather than physical adsorption. The isosteric heat of adsorption (ΔHads) was found to be -82.7 ± 5.05 kJ · mol. This shows the formation of new chemical bonds among Fe(III)-HTTA-PU foam. The thermodynamic parameters of ΔG, ΔH and ΔS, and equilibrium constant KC have been calculated. These functions further support that the process of adsorption of Fe(III) on HTTA-loaded PU foam is endothermic and chemisorption, stabilized through thermodynamic functions.

UR - https://www.scopus.com/pages/publications/0030436379

U2 - 10.1007/BF02039699

DO - 10.1007/BF02039699

M3 - Article

AN - SCOPUS:0030436379

SN - 0236-5731

VL - 211

SP - 293

EP - 303

JO - Journal of Radioanalytical and Nuclear Chemistry

JF - Journal of Radioanalytical and Nuclear Chemistry

IS - 2

ER -

Kinetics and thermodynamic aspect of the adsorption of Fe(III) on HTTA-imbedded polyurethane foam

Abstract

ASJC Scopus subject areas

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