RT journal article
T1 Removal of Emerging Contaminants as Diclofenac and Caffeine Using Activated Carbon Obtained from Argan Fruit Shells
A1 Bouhcain, Badr
A1 Carrillo-Peña, Daniela
A1 El Mansouri, Fouad
A1 Ez Zoubi, Yassine
A1 Mateos, Raúl
A1 Morán, Antonio
A1 Quiroga Alonso, José María
A1 Hassani Zerrouk, Mohammed
A2 Tecnologías del Medio Ambiente
K1 activated carbon
K1 adsorption
K1 caffeine
K1 diclofenac
K1 argan nutshells
K1 emerging contaminants
AB Activated carbons from argan nutshells were prepared by chemical activation using phosphoric acid H3PO4. This material was characterized by thermogravimetric analysis, infrared spectrometry, and the Brunauer-Emmett-Teller method. The adsorption of two emerging compounds, a stimulant caffeine and an anti-inflammatory drug diclofenac, from distilled water through batch and dynamic tests was investigated. Batch mode experiments were conducted to assess the capacity of adsorption of caffeine and diclofenac from an aqueous solution using the carbon above. Adsorption tests showed that the equilibrium time is 60 and 90 min for diclofenac and caffeine, respectively. The adsorption of diclofenac and caffeine on activated carbon from argan nutshells is described by a pseudo-second-order kinetic model. The highest adsorption capacity determined by the mathematical model of Langmuir is about 126 mg/g for diclofenac and 210 mg/g for caffeine. The thermodynamic parameters attached to the studied absorbent/adsorbate system indicate that the adsorption process is spontaneous and exothermic for diclofenac and endothermic for caffeine.
PB MDPI
SN 2076-3417
YR 2022
FD 2022-03
LK http://hdl.handle.net/10498/26686
UL http://hdl.handle.net/10498/26686
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026