Articles written in Bulletin of Materials Science

    • A simple solid-state method to synthesize nanosized ferromagnetic α-Fe₂O₃ with enhanced photocatalytic activity in sunlight


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      α-Fe₂O₃ was synthesized by preparing a mixture of Fe(III) nitrate with urea as a precursor. The yellowish coloured precursor was calcined at 400°C for 2 h, resulting in the formation of bright red coloured hematite. The surface properties and catalytic activity were compared with a reference sample prepared without the use of urea. It was observed that urea-induced synthesis resulted in a sample having nanosize and large lattice strain, accompanied by the development of ferromagnetic behaviour. The catalytic activity was evaluated for the decomposition of H₂O₂ through the photo-Fenton process in sunlight. The urea-synthesized sample showed an usually large photo-Fenton effect and the catalyst could be easily recovered and reused due to its ferromagnetic behaviour.

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