Preparation and characterization of activated carbon developed from cotton cloth residue activated with phosphoric acid: adsorption of clofibric acid - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Water Science and Technology Année : 2020

Preparation and characterization of activated carbon developed from cotton cloth residue activated with phosphoric acid: adsorption of clofibric acid

Résumé

Cotton cloth waste was used as a precursor to prepare activated carbon (ACCs) chemically activated with phosphoric acid. Adsorption behavior of prepared ACCs was correlated with physicochemical proprieties. The pore volume and BET surface of ACCs were determined by nitrogen adsorption isotherms and scanning electron microscopy was used to observe their surface morphologies. Fourier transform infrared (FTIR) spectroscopy analysis and pH point zero charge (pH(PZC)) were conducted to determine chemical properties. Under the optimal conditions: 50% impregnation ratio and thermal treatment under N(2) flow at 600 °C during 60 min, the activated carbon prepared exhibits a high surface area 1,150 m(2)/g, 0.501 cm(3)/g micropore volume and an excellent adsorption performance. The adsorbed amount of clofibric acid is found to be 9.98 and 83 mg/g at, respectively, initial CA concentration of 10 and 100 mg/L at pH 3.0 and 20 °C. Diffusion and chemisorption are the steps controlling the adsorption of CA onto ACC 50% and the equilibrium data were well described by Freundlich isotherm.

Domaines

Chimie

Dates et versions

hal-03102156 , version 1 (07-01-2021)

Identifiants

Citer

N Boudrahem, F Aissani-Benissad, F Boudrahem, Christophe Vial, Fabrice Audonnet, et al.. Preparation and characterization of activated carbon developed from cotton cloth residue activated with phosphoric acid: adsorption of clofibric acid. Water Science and Technology, 2020, 82 (11), pp.2513-2524. ⟨10.2166/wst.2020.524⟩. ⟨hal-03102156⟩
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