Optimization of Photocatalytic Degradation of Acid Blue 113 and Acid Red 88 Textile Dyes in a UV-C/TiO2 Suspension System: Application of Response Surface Methodology (RSM)

Authors

Ali Saber, University of Nevada, Las VegasFollow
David E. James, University of Nevada, Las VegasFollow
Soroosh Mortazavian, University of Nevada, Las VegasFollow

Document Type

Article

Publication Date

4-14-2019

Publication Title

Catalysts

Publisher

MDPI

Volume

9

Issue

4

First page number:

1

Last page number:

19

Abstract

Textile industries produce copious amounts of colored wastewater some of which are toxic to humans and aquatic biota. This study investigates optimization of a bench-scale UV-C photocatalytic process using a TiO2 catalyst suspension for degradation of two textile dyes, Acid Blue 113 (AB 113) and Acid Red 88 (AR 88). From preliminary experiments, appropriate ranges for experimental factors including reaction time, solution pH, initial dye concentration and catalyst dose, were determined for each dye. Response surface methodology (RSM) using a cubic IV optimal design was then used to design the experiments and optimize the process. Analysis of variance (ANOVA) was employed to determine significance of experimental factors and their interactions. Results revealed that among the studied factors, solution pH and initial dye concentration had the strongest effects on degradation rates of AB 113 and AR 88, respectively.

Keywords

Process optimization; Response surface methodology; Kinetic study; Advanced oxidation processes (AOPs); TiO2 catalyst; Textile wastewater

Disciplines

Civil and Environmental Engineering

File Format

pdf

File Size

2,206 KB

Language

English

Repository Citation

Saber, A., James, D. E., Mortazavian, S. (2019). Optimization of Photocatalytic Degradation of Acid Blue 113 and Acid Red 88 Textile Dyes in a UV-C/TiO2 Suspension System: Application of Response Surface Methodology (RSM). Catalysts, 9(4), 1-19. MDPI.
http://dx.doi.org/10.3390/catal9040360