Response surface methodology (RSM) for optimization of water treatment by Fe3O4@SiO2@Cr–TiO2–S nanocomposite and enhanced performance with deposited Ag on the its surface
کد مقاله : 1322-PHYSCHEM20
مسعود همدانیان *، محمد پیمان مظهری
دانشگاه کاشان
چکیده مقاله:
In this work, first a magnetic chromium and sulfur co-doped TiO2 photocatalyst was synthesized by modified sol–gel method. Degradation of methyl orange(MO) considered as a model organic pollutant in water. For a high efficiency, we have optimized amount of codoped chromium and sulfur in the Fe3O4@SiO2@Cr–TiO2–S nano particles by using of response surface methodology (RSM). Then different amounts of silver nanoparticle have been deposited on the surface of optimum sample by photodeposition method. The samples were characterized by techniques such as XRD, SEM and EDS. The magnetic nanocomposite samples easy recycling by external magnet. Also, they show a good photocatalyst activity after multiple recycles.
کلیدواژه ها:
Magnetic nanocomposite; Responsesurface methodology; Cr, S co-doped TiO2; Photodeposition method
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