Effect of Fe doping on photocatalytic activity of B2 O3processed using polyvinyl borate precursor

In this study, boron oxide (B2O3) powder has been synthesized by the pyrolysisof polyvinyl borate precursor in air. For this purpose, polyvinyl borate precursorwas synthesized through the condensation reaction of polyvinyl alcohol and boricacid, and then the polymeric precursor was pyrolyzed at 500°C. The as-preparedB2O3 particles were doped with iron (Fe) ions using the wet impregnation method.The photocatalytic activity of both undoped B2O3 and iron doped B2O3 (FeB2O3) powders was studied by investigating the degradation of the model dye,methylene blue, under UV light irradiation. It was pointed out that iron doped B2O3powder exhibited enhanced photocatalytic activity compared to undoped one. Inaddition, various techniques of characterization such as FTIR, XRD, FESEM,EDX and UV–Vis spectroscopy were performed to confirm the synthesis of B2O3particles and the presence of iron ions in the crystal structure of the preparedphotocatalyst. The novelty of this study was to research the photocatalyticperformance of both B2O3 and Fe-B2O3 photocatalysts.

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