Iron oxide nanoparticles synthesis through a benign approach and its catalytic application

Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Henam Sylvia Devi, Thiyam David Singh Synthesis of iron oxide nanoparticles was carried out through an environmental benign route using tannic acid as reducing and capping agent. The TEM image shows the details of the poly-dispersity in size of the iron oxide nanoparticle and average diameter of the particles range in between 30-50nm. XRD result rule out that iron oxide nanoparticle is a mixed phase constituted by Fe+2 and Fe+3 ions. The average size of the particle determined from XRD data is 45.6nm which is agreeable with the finding obtained from TEM images. This particle of iron oxide is used for the degradation of p-cresol and it successfully degraded p-cresol. Catalytic property of the iron oxide nanoparticle was also investigation using Methyl blue as role model dye. Degradation of Methyl blue dye was studied in presence of NaBH4 and the degradation reaction followed first order kinetics with rate constant value of 1.6×10−3 min−1. The rate constant of the reaction in absence of iron oxide nanoparticles is 4×10−4 min−1, this result confirmed the catalytic nature of as such prepared iron oxide nanoparticles.
Source: Perspectives in Science - Category: Science Source Type: research