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arXiv · 2202.02508

Enhanced photocatalytic dye degradation and hydrogen production ability of Bi$_{25}$FeO$_{40}$-rGO nanocomposite and mechanism insight

M. A. Basith·Ragib Ahsan·Ishrat Zarin·M. A. Jalil
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Abstract

A comprehensive comparison between Bi$_{25}$FeO$_{40}$-reduced graphene oxide(rGO) nanocomposite and BiFeO$_{3}$-rGO nanocomposite has been performed to investigate their photocatalytic abilities in degradation of Rhodamine B dye and generation of hydrogen by water-splitting. The hydrothermal technique adapted for synthesis of the nanocomposites provides a versatile temperature-controlled phase selection between perovskite BiFeO$_{3}$ and sillenite Bi$_{25}$FeO$_{40}$. Both perovskite and sillenite structured nanocomposites are stable and exhibit considerably higher photocatalytic ability over pure BiFeO$_{3}$ nanoparticles and commercially available Degussa P25 titania. Notably, Bi$_{25}$FeO$_{40}$- rGO nanocomposite has demonstrated superior photocatalytic ability and stability under visible light irradiation than that of BiFeO$_{3}$-rGO nanocomposite. The possible mechanism behind the superior photocatalytic performance of Bi$_{25}$FeO$_{40}$-rGO nanocomposite has been critically discussed.

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M. A. Basith, Ragib Ahsan, Ishrat Zarin, M. A. Jalil. 2022-02-05. Enhanced photocatalytic dye degradation and hydrogen production ability of Bi$_{25}$FeO$_{40}$-rGO nanocomposite and mechanism insight. https://doi.org/10.1038/s41598-018-29402-w

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