Title :

Combination of a Box-Behnken design technique with response surface methodology for optimization of the photocatalytic mineralization of CI Basic Red 46 dye from aqueous solution

Author(s) :

Berkani, M. [Auteur]
Kadmi, Yassine [Auteur]
Université d'Artois [UA]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Bouchareb, M. K. [Auteur]
Bouhelassa, M. [Auteur]
Bouzaza, Abdelkrim [Auteur]
Institut de Physique de Rennes [IPR]
Ecole Nationale Supérieure de Chimie de Rennes [ENSCR]

Journal title :

Arabian Journal of Chemistry

Abbreviated title :

Arab. J. Chem.

Volume number :

13

Pages :

8338-8346

Publication date :

2020-12-17

ISSN :

1878-5352

English keyword(s) :

Mineralization
Wastewater
Response surface methodology
Optimization
Azo dye
Photocatalysis

HAL domain(s) :

Chimie/Chimie théorique et/ou physique

English abstract : [en]

The photodegradation of an industrial azo dye C.I Basic Red 46 was examined in a fixed-bed photoreactor using UV-lamps simulated to the solar irradiation. In our photodecolorization study, the UV/TiO2 process was optimized ...
Show more >The photodegradation of an industrial azo dye C.I Basic Red 46 was examined in a fixed-bed photoreactor using UV-lamps simulated to the solar irradiation. In our photodecolorization study, the UV/TiO2 process was optimized using the Box-Behnken approach to evaluate the synergistic effects of three independent parameters (initial concentration of the dye, flow rate, and UV intensity) on mineralization effectiveness. The response surface methodology was in good promise with the prediction model (coefficients of determination of decolorization and mineralization were R2Dec = 0.997 and R2TOC = 0.994, respectively). The effects of the factors could be estimated from a second–order polynomial equation and student’s t-test. The optimal parameters of decolorization and mineralization were as follows: initial concentration of colorant 25 mg L−1, rate of fluid flow 0.3 L min−1, and ultraviolet light intensity 38.1 W m−2. The decolorization and mineralization removal efficiency under these optimal conditions were 100% and 57.63% respectively. These results indicate that optimization using response surface methodology, based on the Box-Behnken approach, is an excellent tool for determining the optimal conditions, and the process can be easily extrapolated for a specific treatment of real waste water containing the azo dye C.I Basic Red 46. Also, the intermediates that were produced during photodegradation process of Basic Red 46 were determined by GC/MS.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS

Collections :

• Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516

Submission date :

2024-02-28T23:26:14Z
2024-03-12T14:43:26Z