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Removal of Rr198 Dye by Tio2/Fe3o4/Persulfate Nanoparticles Under Uv-Led Irradiation and Comparision of Ofat and Ccd Experimental Design in Rsm Modelling



Rahimi S1 ; Mohammadi F1 ; Yavari Z2
Authors

Source: Indian Journal of Chemical Technology Published:2020

Abstract

The photocatalytic activity of TiO2/Fe3O4 nanocomposite has been determined. The XRD spectrum and FESEM analysis have been used to evaluate TiO2 / Fe3O4 nanoparticles. The photocatalytic activity of nanoparticles is assessed by degradation of the RR198 solution under the influence of UV-LED radiation. Response Surface Methodology (RSM) is employed to determine the relationships between the studied parameters. The experiments were designed and performed in two ways: One-factor-at-a-time method (OFAT) and Central composite design (CCD). Here nanoparticles with synergistic 2-effect of S2O8 were very successful in eliminating the dye. The results of the RSM model with the two mentioned experiment design methods indicated that the model derived from the CCD method had a better predictive capability and favoured from the ability to generalize to other results rather than OFAT method. © 2020, National Institute of Science Communication and Information Resources. All rights reserved.
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