Kinetic and Variables Analysis for Photo-Fenton by Synthetic Fe3+ Doped TiO2 Nanoparticles to Destroy Brilliant Dye Pollutants | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 68, Issue 8, August 2025, Page 613-630 PDF (2.93 MB) | ||||
| Document Type: Review Articles | ||||
| DOI: 10.21608/ejchem.2024.337668.10841 | ||||
 View on SCiNiTO | ||||
| Author | ||||
Gamalat Mahmoud 
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| Department of Chemistry, Faculty of Science, Al-Azhar University | ||||
| Abstract | ||||
| Abstract Reactive Red 12 (RR 12) dye, also known as Brilliant Red B dye, is a highly pigmented substance that contaminates wastewater when it's used to dye and print textiles. To stop the dopant cation from penetrating the bulk of TiO2, Fe3+doped TiO2 composite nanoparticles (Fe3+ = 0.02 wt.%) were successfully synthesized using an incipient wet impregnation method. SEM, EDX, XRD, and TEM characterized the undoped TiO2 and Fe3+doped TiO2 nanoparticles. Studies indicate that when Fe3+ is doped, the size of the Fe3+doped TiO2 particles decreases and their XRD peaks broaden. The transformation of TiO2 from anatase to rutile can be regulated by doping Fe3+. The oxidation of RR 12 is significantly enhanced by the photocatalytic and Photo-Fenton treatments that use Fe3+doped TiO2 nanoparticles in the presence of H2O2. The doping amount of Fe3+ remarkably affects the activity of the catalyst. Several factors, including Fe3+doped TiO2 catalyst dosage, pH, initial dye concentration, contact time, and H2O2 amounts, affect how quickly the dye is degraded. Langmuir and Freundlich's models of adsorption looked at the adsorption of RR 12. The Langmuir equation was found to fit more closely than the Freundlich equation. The kinetics of the adsorption at the different initial dye concentrations by pseudo-first order and pseudo-second order were also examined. According to the kinetic investigations, the adsorption kinetics were clarified by the pseudo-second-order kinetic model, which raised the possibility that chemisorption was the adsorption mechanism. | ||||
| Keywords | ||||
| Keywords: Fe3+Doped TiO2 Nanoparticles; Kinetics; Isotherms; Photo-Fenton Treatments; Dye Pollutant | ||||
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