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Title: Removal of RR198 dye by TiO2/Fe3O4/persulfate nanoparticles under UV-LED irradiation and comparision of OFAT and CCD experimental design in RSM modelling
Authors: Rahimi, Somayeh
Mohammadi, Farzaneh
Yavari, Zeynab
Keywords: Nanocomposite;Dye removal;RR198 dye;Photocatalyst;RSM;TiO2/Fe3O4
Issue Date: Jul-2020
Publisher: NISCAIR-CSIR, India
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 effect of S2O82- 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.
Page(s): 283-293
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.27(4) [July 2020]

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