Thermodynamic Study of Adsorption of Phenol, 4-Chlorophenol, and 4-Nitrophenol on Activated Carbon Obtained from Eucalyptus Seed
Joint Authors
Rincón-Silva, Nelson Giovanny
Moreno-Piraján, Juan Carlos
Giraldo-Gutiérrez, L.
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-01-22
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Activated carbons from shell eucalyptus (Eucalyptus globulus) were prepared by chemical activation through impregnation with solutions of two activators: sulfuric acid and sodium hydroxide, the surface areas for activated carbons with base were 780 and 670 m2 g−1 and the solids activated with acid were 150 and 80 m2 g−1.
These were applying in adsorption of priority pollutants: phenol, 4-nitrophenol, and 4-chlorophenol from aqueous solution.
Activated carbon with the highest adsorption capacity has values of 2.12, 2.57, and 3.89 on phenol, 4-nitrophenol, and 4-chlorophenol, respectively, and was activated with base.
In general, all carbons adsorption capacity was given in the following order: 4-chlorophenol > 4-nitrophenol > phenol.
Adsorption isotherms of phenols on activated carbons were fitted to the Langmuir, Freundlich, and Dubinin-Radusckevisch-Kanager models, finding great association between them and experimental data.
A thermodynamic study was performed, the exothermic nature and spontaneous nature of the adsorption process were confirmed, and the favorability of adsorption on activated carbons with NaOH was confirmed by energy relations and concluded that the adsorption process of phenolic compounds from the activated carbon obtained is physical.
The pH of solutions and pH at point of zero charge of the solid play an important role in the adsorption process.
American Psychological Association (APA)
Rincón-Silva, Nelson Giovanny& Moreno-Piraján, Juan Carlos& Giraldo-Gutiérrez, L.. 2015. Thermodynamic Study of Adsorption of Phenol, 4-Chlorophenol, and 4-Nitrophenol on Activated Carbon Obtained from Eucalyptus Seed. Journal of Chemistry،Vol. 2015, no. 2015, pp.1-12.
https://search.emarefa.net/detail/BIM-1067520
Modern Language Association (MLA)
Rincón-Silva, Nelson Giovanny…[et al.]. Thermodynamic Study of Adsorption of Phenol, 4-Chlorophenol, and 4-Nitrophenol on Activated Carbon Obtained from Eucalyptus Seed. Journal of Chemistry No. 2015 (2015), pp.1-12.
https://search.emarefa.net/detail/BIM-1067520
American Medical Association (AMA)
Rincón-Silva, Nelson Giovanny& Moreno-Piraján, Juan Carlos& Giraldo-Gutiérrez, L.. Thermodynamic Study of Adsorption of Phenol, 4-Chlorophenol, and 4-Nitrophenol on Activated Carbon Obtained from Eucalyptus Seed. Journal of Chemistry. 2015. Vol. 2015, no. 2015, pp.1-12.
https://search.emarefa.net/detail/BIM-1067520
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1067520