Efficient removal of cadmium and 2-chlorophenol in aqueous systems by natural clay: Adsorption and photo-Fenton degradation processes | Zendy

Haithem Bel Hadjltaief | Zendy; Ali Sdiri | Zendy; Wahida Ltaief | Zendy; Patrick Da Costa | Zendy; María Elena Gálvez | Zendy; Mourad Ben Zina | Zendy

Open Access

Efficient removal of cadmium and 2-chlorophenol in aqueous systems by natural clay: Adsorption and photo-Fenton degradation processes

Author(s) -

Haithem Bel Hadjltaief,

Ali Sdiri,

Wahida Ltaief,

Patrick Da Costa,

María Elena Gálvez,

Mourad Ben Zina

Publication year - 2017

Publication title -

comptes rendus chimie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.653

H-Index - 76

eISSN - 1878-1543

pISSN - 1631-0748

DOI - 10.1016/j.crci.2017.01.009

Subject(s) - adsorption , aqueous solution , chemistry , phenol , catalysis , degradation (telecommunications) , cadmium , mineralization (soil science) , activated carbon , nuclear chemistry , langmuir adsorption model , inorganic chemistry , environmental chemistry , organic chemistry , telecommunications , computer science , nitrogen

International audienceAdsorption and photo-Fenton processes were used as handy tools to ascertain the capability of natural clays to remove cadmium (Cd) and 2-chlorophenol (2-CP) from aqueous solution. Natural Fe-rich clay collected from Tejera-Esghira in Medenine area, south Tunisia, was used as a catalyst in the heterogeneous photo-Fenton oxidation of 2-CP in aqueous solution. Clay samples were acid activated to improve their adsorptive capacity for the removal of Cd. Experimental results indicated that the adsorption of Cd ions onto natural red clay of Tejera-Esghira followed the pseudo-second-order kinetic model. Langmuir model was found to describe the equilibrium data with the calculated maximum adsorp-tion capacity of 23.59 mg g À1 for acid-activated clay. Photo-Fenton experiments proved high activity of the natural clay catalyst, which was able to completely degrade the phenol present in the treated solution after 30 min and in the presence of ultraviolet light C (UV-C). Total organic carbon and gas chromatography analysis confirmed a 2-CP degradation mechanism toward an almost complete mineralization of the organic compound

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research