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Kinetic and thermodynamic adsorption study of formic and acetic acids from aqueous solution by activated carbon derived from moringa oleifera pods


 
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1. Title Title of document Kinetic and thermodynamic adsorption study of formic and acetic acids from aqueous solution by activated carbon derived from moringa oleifera pods
 
2. Creator Author's name, affiliation, country Ismaila Ayinde Oba; Folahan Amao Adekola; University of Ilorin, Ilorin. *,; Nigeria
 
3. Subject Discipline(s)
 
3. Subject Keyword(s) Adsorption, kinetic, thermodynamic, activated carbon, Moringa Oleifera Pods.
 
4. Description Abstract

Abstract

 

Adsorption of formic acid (FA) and acetic acid (AA) from aqueous solution by moringa oleifera pods activated carbon (MP-AC) were investigated due to their toxic effect in aquatic medium. The MP-AC was characterized for the following parameters: Bulk Density, Moisture Content, Ash Content, pH, Scanning Electron Microscopy (SEM) and Fourier Transform Infra-Red Spectroscopy (FTIR). Batch experiment was adopted and the adsorption equilibria of AA and FA onto MP-AC were investigated by potentiometric titration method. The effects of initial concentration, agitation time, adsorbent dosage and temperature were also investigated. The experimental data were analyzed with some Isotherm models. It was found that Langmuir model adequately described the adsorption of FA onto MP-AC. Temkin, Freundlich and Dubinin-Radushkevich (D-R) Isotherm models better described the adsorption of AA onto MP-AC. The Kinetic data were examined and the Pseudo-Second-Order kinetic model agreed most and was found to adequately explain the adsorption kinetic of the adsorbates. Thermodynamic parameters showed that the adsorption of FA was spontaneous while that of AA was non-spontaneous. The adsorption processes were exothermic.

 
 
5. Publisher Organizing agency, location
 
6. Contributor Sponsor(s) nil
 
7. Date (YYYY-MM-DD) 23-05-2018
 
8. Type Status & genre Peer-reviewed Article
 
8. Type Type
 
9. Format File format PDF
 
10. Identifier Uniform Resource Identifier https://revues.imist.ma/index.php/morjchem/article/view/10064
 
10. Identifier Digital Object Identifier (DOI) https://doi.org/10.48317/IMIST.PRSM/morjchem-v6i3.10064
 
11. Source Title; vol., no. (year) Moroccan Journal of Chemistry; Vol 6, No 3 (2018)
 
12. Language English=en en
 
13. Relation Supp. Files
 
14. Coverage Geo-spatial location, chronological period, research sample (gender, age, etc.)
 
15. Rights Copyright and permissions Copyright (c) 2018 Moroccan Journal of Chemistry