Work

Phenol Adsorption from Dilute Aqueous Solutions by Carbons

Year: 2003

Type: article

Abstract: The adsorption of phenol from dilute aqueous solutions by seven activated carbons and one non-porous carbon black is reported. It is confirmed that the equilibrium can be described by a modified Dubinin-Radushkevich-Kaganer equation, with exponent n = 4 and Es = (1.03 ± 0.18)Eo. At low equilibrium concentrations, phenol and its derivatives are adsorbed as monolayers by both non-porous and porous carbons. However, water is preferentially adsorbed on the oxygen-containing surface complexes, which reduces the area available to phenol and its derivatives by 71 m2 per mmol of surface oxygen.

Source: CHIMIA International Journal for Chemistry

DOI: 10.2533/000942903777678687

Authors: Elena Fernandez, Suzana Gotovac, Deirdre Hugi-Cleary, Victoria López-Ramón, Fritz Stoeckli

Institutions: University of Neuchâtel, Universidad de Jaén

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: diamond

Funders: National Science Foundation, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung