Photocatalytic ozonation using Fe doped TiO2 nanoparticles for decolorization of azo dye Optimization using RSM
Year: 2024
Type: preprint
Abstract: The decolorization of azo dye was explored using Fe-doped titanium dioxide nanoparticles (FeT) UV radiation, and ozonation (UV/FeT/O3) process and process parameter are optimized using the most commonly used models of response surface methodology (RSM) viz. central composite design(CCD). The ozone concentration, initial pH, initial dye concentration, concentration of FeT catalyst, and decolorization efficiency as process response were investigated to develop a model using CCD. The developed regression model was statistically analyzed using Analysis of Variance (ANOVA). The value of the coefficient of determination (R2 = 0.9778) confirmed that the developed CCD model was statistically significant. The optimum decolorization efficiency of 95.12% for UV/FeT/O3 was achieved at ozone concentration = 70 mgL− 1; pH = 08; initial dye concentration = 200 mgL− 1; catalyst concentration = 1gL− 1. The photocatalytic ozonation process has a synergy index value of 1.12 between ozonation and photocatalysis.
Source: Research Square
Author: Chhaya Rekhate
Institution: IPS Academy
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4391786565