Abstract
This study reports the attachment of meso-tetrakis-(4-carboxyphenyl)porphyrinato manganese(III) acetate (Mn(TCPP)OAc) to the surface of amine-functionalized iron oxide magnetic nanoparticle (Fe3O4@SiO2@NH2) by amide bonds. To characterize the structure and morphology of the prepared nanocatalyst (Fe3O4@SiO2@NH2@(Mn(TCPP)OAc)), various techniques such as FT-IR, ultraviolet–visible spectroscopy, flame atomic absorption spectroscopy, X-ray powder diffraction, scanning electron microscopy, vibration sample magnetometry and thermogravimetric analysis were applied. In the following, the catalytic efficiency of the prepared nanocatalyst were also investigated for the oxidative degradation of various organic dyes with hydrogen peroxide (as a green oxidant) in water and the effect of various parameters which may affect the catalytic efficiency were optimized. In addition, the prepared nanocatalyst showed little deactivation with time, was easily recovered by an external magnet, and could be reused at least five times with no significant loss in the activity.
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