Visible light photocatalytic and magnetic properties of V doped α-Fe2O3 (VFO) nanoparticles synthesized by polyol assisted hydrothermal method.

R Ramprasath, L Arul Pragasan, V Manikandan, S Sudha, S Cholan, Abdullah A Alarfaj, Abdurahman Hajinur Hirad, B Gokul, Sridhar Sampath

Chemosphere 2022 Nov

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Vanadium-doped α-Fe2O3 nanoparticles (VFO nanoparticles) were prepared by polyol-assisted hydrothermal method. The impact on the structure, optical, magnetic and photocatalytic properties of α-Fe2O3 nanoparticles were studied by varying the vanadium concentration from 1 to 5%. XRD analysis confirms the presence of hematite phase with hexagonal structure and estimates the nanocrystals size as ∼26-38 nm. FESEM and TEM reveal the formation of 3D flower-like morphology bundled with 2D nanoflakes. The estimated band gap energy was in the range 2.01 eV-2.12 eV. XPS study shows the presence of vanadium in V4+ oxidation state in VFO nanoparticles. VSM study shows a non-saturated hysteresis loop with weak ferromagnetic behavior for all the VFO nanoparticles. 5% V doped α-Fe2O3 nanoparticles (5%VFO nanoparticles) exhibited superior visible light driven photocatalytic activity compared to other samples. Copyright © 2022 Elsevier Ltd. All rights reserved.

Citation

R Ramprasath, L Arul Pragasan, V Manikandan, S Sudha, S Cholan, Abdullah A Alarfaj, Abdurahman Hajinur Hirad, B Gokul, Sridhar Sampath. Visible light photocatalytic and magnetic properties of V doped α-Fe2O3 (VFO) nanoparticles synthesized by polyol assisted hydrothermal method. Chemosphere. 2022 Nov;307(Pt 1):135575