Dataset on adsorption of phenol onto activated carbons: Equilibrium, kinetics and mechanism of adsorption

Diego Felipe Hernández-Barreto; Liliana Giraldo; Juan Carlos Moreno-Piraján

doi:10.1016/j.dib.2020.106312

Dataset on adsorption of phenol onto activated carbons: Equilibrium, kinetics and mechanism of adsorption

Data Brief. 2020 Sep 14:32:106312. doi: 10.1016/j.dib.2020.106312. eCollection 2020 Oct.

Authors

Diego Felipe Hernández-Barreto¹, Liliana Giraldo², Juan Carlos Moreno-Piraján¹

Affiliations

¹ Departamento de Química, Facultad de Ciencias, Grupo de sólidos porosos y calorimetría, Universidad de los Andes, Bogotá, Colombia.
² Departamento de Química, Facultad de Ciencias, Grupo de calorimetría, Universidad Nacional de Colombia, Bogotá, Colombia.

Abstract

Two activated carbons (AC) prepared from onion leaves (OL) (Allium fistulosum) and palm kernel shell (PS) (Elaeis guineesis) were used to adsorb phenol from aqueous solution. Adsorption kinetics was studied by Pseudo-first order (PFO) and Pseudo-second order (PSO) models, while equilibrium was modelled using Langmuir, Freundlich, Toth and Redlich Peterson isotherms. Adsorption mechanism was analyzed applying Boyd and intraparticle diffusion models. The parameters of each one of the models were calculated using Minitab17® by non-linear regression. Piecewise linear regression was applied to calculate the parameters of Boyd and intraparticle diffusion models. Phenol adsorption onto activated carbons is describe better by Langmuir isotherm and PSO kinetic model. Maximum adsorption capacity was between 30 and 40 mg.g^-1.

Keywords: Activated carbon; Adsorption; Film diffusion; Intraparticle diffusion.