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A kinetics, isotherms, and thermodynamic study of diclofenac adsorption using activated carbon prepared from olive stones.
- Source :
-
Journal of Dispersion Science & Technology . 2018, Vol. 39 Issue 6, p814-825. 12p. 3 Diagrams, 7 Charts, 14 Graphs. - Publication Year :
- 2018
-
Abstract
- The objective of this work was to study the efficiency of activated carbon prepared from agricultural waste (olive stones; OS) on diclofenac (DCF) adsorption in aqueous solutions. The prepared charcoals were characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM)/Energy Dispersive X-Ray Analyser (EDX), and Brunauer-Emmett-Teller (BET) analysis techniques. The results show that DCF adsorption is favorable in acid medium and low temperature. The adsorption kinetics follows a pseudo-second-order kinetic model. The adsorption was found to be spontaneous (ΔG° < 0) for OS600°C, whereas the negative values of the enthalpy (ΔH°) suggest an exothermic adsorption for both adsorbents. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01932691
- Volume :
- 39
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Dispersion Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 129037798
- Full Text :
- https://doi.org/10.1080/01932691.2017.1395346