Estimation of Activation Energy of Desorption of n-Hexanol from Activated Carbons by the TPD Technique
Open Access
- 1 March 2003
- journal article
- Published by SAGE Publications in Adsorption Science & Technology
- Vol. 21 (2), 125-133
- https://doi.org/10.1260/026361703769013862
Abstract
Activated carbon and five kinds of metal-ion-substituted activated carbons, viz. Ag+-activated carbon, Cu2+-activated carbon, Fe3+-activated carbon, Ba2+-activated carbon and Ca2+-activated carbon, were prepared. A model for estimating the activation energy of desorption was established. Temperature-programmed desorption (TPD) experiments were conducted to measure the TPD curves of n-hexanol and hence estimate the activation energy for n-hexanol desorption from the various activated carbons. The results showed that the activation energies for n-hexanol desorption from the Ag+-activated carbon, the Cu2+-activated carbon and the Fe3+-activated carbon were higher than those from the unsubstituted activated carbon, the Ca2+-activated carbon and the Ba2+-activated carbon.Keywords
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