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Visible light-activated photo-Fenton dye degradation ability of different FeOx·SiO2 composite systems measured by 57Fe Mössbauer spectroscopy

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Abstract

The photo-Fenton properties of iron silicate composite materials were investigated by methylene blue dye degradation. From various iron oxide and iron silicate samples the best performing material, FeSiOx (bulk iron silicate) showed a first-order rate constant of (1.57 ± 0.04) × 10−2 min−1. According to the 57Fe Mössbauer spectra, XRD patterns and TEM images this sample showed the most amount of Fe2+ content in the form of Fe2SiO4 nanoprecipitations.

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Acknowledgements

The authors would like to thank the financial support from the Japanese Ministry of Education as part of the Culture, Sports, Science and Technology’s scholarship (MEXT). We also would like to express our gratitude for the help and support of the supervisor, Dr. Shiro Kubuki.

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Correspondence to Balázs Kobzi.

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Kobzi, B., Nomura, K. & Sinkó, K. Visible light-activated photo-Fenton dye degradation ability of different FeOx·SiO2 composite systems measured by 57Fe Mössbauer spectroscopy. J Radioanal Nucl Chem 318, 1307–1315 (2018). https://doi.org/10.1007/s10967-018-6160-2

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  • DOI: https://doi.org/10.1007/s10967-018-6160-2

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