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Engineering the structural, optical and photoelectrochemical properties of BaTiO3-CoFe2O4 nanocomposite for photoelectrochemical water splitting

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Version 2 2023-10-11, 06:33
Version 1 2023-07-10, 10:59
journal contribution
revised on 2023-10-11, 06:32 and posted on 2023-10-11, 06:33 authored by Hemalatha Parangusan, Jolly Bhadra, K. Karuppasamy, T. Maiyalagan, Zubair Ahmad, Noora Al-Thani

Water splitting in the presence of semiconductor photocatalyst under sunlight illumination is one of the potential methods to produce clean hydrogen fuel. Herein, a BaTiO3-CoFe2O4 composite photocatalyst was fabricated using facile hydrothermal method and evaluated their structural, optical, morphological and electrochemical properties for their plausible application in photoelectrochemical water-splitting. The cubic phase of CoFe2O4 and tetragonal phase of BaTiO3 were proved by X-ray diffraction pattern. The SEM and TEM images of the composite BaTiO3-CoFe2O4 had shown the combination of both spherical and needle-like structure. The average diameter of pure BaTiO3 and CoFe2O4 was around 25 and 50 nm respectively, however, the particle size was reduced to 43 nm for BaTiO3-CoFe2O4 composite. The UV-vis band gap analysis revealed that the Eg value of the composite was found in the visible spectrum. The photoelectochemical behavior with 12 mA/cm2 at 1.7 V applied potential was achieved for the BaTiO3-CoFe2O4 hybrid nanocomposite. The electrochemical impedance spectroscopy showed that the prepared BaTiO3-CoFe2O4 composite have possessed better charge transfer and recombination kinetics. 

Other Information

Published in: Electrochimica Acta
License: https://creativecommons.org/licenses/by/4.0/
See article on publisher's website: http://dx.doi.org/10.1016/j.electacta.2023.142849 

Funding

Open Access funding provided by the Qatar National Library

History

Language

  • English

Publisher

Elsevier

Publication Year

  • 2023

License statement

This Item is licensed under the Creative Commons Attribution 4.0 International License

Institution affiliated with

  • Qatar University
  • Qatar University Young Scientists Center - QU

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