Abstract
The heat of adsorption, the adsorption energy and the activation energy are of the most important and frequently calculated parameters in adsorption and ion exchange systems. However, in many occasions these parameters are not clearly defined, appropriate calculated or analyzed in the related literature. A characteristic example is the use of different limits used in order to identify a process as physisorption, chemisorption or ion exchange. The present paper aims at clarifying the nature of these parameters and their interrelationship in theoretical basis and to present the paradigm of ion exchange systems involving zeolites and cations as a case study. All basic theoretical issues are presented, analyzed and discussed with the support of a large number of experimental data in order to draw secure conclusions on several critical issues. In total 46 activation energy, 32 adsorption energy and 34 heat of adsorption experimental values are collected and discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 149-157 |
| Number of pages | 9 |
| Journal | Desalination and Water Treatment |
| Volume | 39 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 2012 |
| Externally published | Yes |
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Keywords
- Activation energy
- Adsorption energy
- Clinoptilolite
- Heat of adsorption
- Ion exchange systems
- Zeolites
ASJC Scopus subject areas
- Pollution
- Water Science and Technology
- Ocean Engineering
Cite this
Heat of adsorption, adsorption energy and activation energy in adsorption and ion exchange systems. / Inglezakis, Vassilis J.; Zorpas, Antonis A.
In: Desalination and Water Treatment, Vol. 39, No. 1-3, 2012, p. 149-157.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Heat of adsorption, adsorption energy and activation energy in adsorption and ion exchange systems
AU - Inglezakis, Vassilis J.
AU - Zorpas, Antonis A.
PY - 2012
Y1 - 2012
N2 - The heat of adsorption, the adsorption energy and the activation energy are of the most important and frequently calculated parameters in adsorption and ion exchange systems. However, in many occasions these parameters are not clearly defined, appropriate calculated or analyzed in the related literature. A characteristic example is the use of different limits used in order to identify a process as physisorption, chemisorption or ion exchange. The present paper aims at clarifying the nature of these parameters and their interrelationship in theoretical basis and to present the paradigm of ion exchange systems involving zeolites and cations as a case study. All basic theoretical issues are presented, analyzed and discussed with the support of a large number of experimental data in order to draw secure conclusions on several critical issues. In total 46 activation energy, 32 adsorption energy and 34 heat of adsorption experimental values are collected and discussed.
AB - The heat of adsorption, the adsorption energy and the activation energy are of the most important and frequently calculated parameters in adsorption and ion exchange systems. However, in many occasions these parameters are not clearly defined, appropriate calculated or analyzed in the related literature. A characteristic example is the use of different limits used in order to identify a process as physisorption, chemisorption or ion exchange. The present paper aims at clarifying the nature of these parameters and their interrelationship in theoretical basis and to present the paradigm of ion exchange systems involving zeolites and cations as a case study. All basic theoretical issues are presented, analyzed and discussed with the support of a large number of experimental data in order to draw secure conclusions on several critical issues. In total 46 activation energy, 32 adsorption energy and 34 heat of adsorption experimental values are collected and discussed.
KW - Activation energy
KW - Adsorption energy
KW - Clinoptilolite
KW - Heat of adsorption
KW - Ion exchange systems
KW - Zeolites
UR - http://www.scopus.com/inward/record.url?scp=84856988401&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84856988401&partnerID=8YFLogxK
U2 - 10/5004/dwt.2012.3000
DO - 10/5004/dwt.2012.3000
M3 - Article
AN - SCOPUS:84856988401
VL - 39
SP - 149
EP - 157
JO - Desalination and Water Treatment
JF - Desalination and Water Treatment
SN - 1944-3994
IS - 1-3
ER -