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Thermal Properties of Surface-Modified \(\upalpha \)- and \(\upvarepsilon \)-Fe\(_{2}\hbox {O}_{3}\) Photocatalysts Determined by Beam Deflection Spectroscopy

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Abstract

In this work, a photothermal beam deflection spectroscopy setup is developed and applied for determination of the thermal parameters (thermal diffusivity and thermal conductivity) of \(\upalpha \)- and \(\upvarepsilon \)-Fe\(_{2}\hbox {O}_{3}\) nanodeposits on Si(100) substrates, specifically designed and tested as photocatalysts. It was observed that thermal parameters of the material strongly depend on the sample composition and morphology, which affect also the photocatalytic activity. The correlation between the thermal and photocatalytic properties are critically discussed based on the characteristics of the materials.

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Acknowledgments

Authors would like to thank the Slovenian Research Agency for funding this work through research Grants Z7-4325-1540: “Characterization of semiconductor nanomaterials by determining their optical and thermal parameters using the photothermal effect” and P1-0034: “Analytics and chemical characterization of materials and processes.” G.C. acknowledges Padova University Grant No. CPDR132937/13 (SOLLEONE) and Dr. Davide Barreca and Dr. Chiara Maccato (Department of Chemistry, Padova University, Italy) for the precious scientific discussions and advice.

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Authors and Affiliations

  1. Laboratory for Environmental Research, University of Nova Gorica, Vipavska 13, 5000 , Nova Gorica, Slovenia

    Dorota Korte, Fernando Fresno & Mladen Franko

  2. Department of Chemistry, Padova University and INSTM, Via Marzolo 1, 35131 , Padua, Italy

    Giorgio Carraro

Authors
  1. Dorota Korte
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  2. Giorgio Carraro
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  3. Fernando Fresno
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  4. Mladen Franko
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Correspondence to Dorota Korte.

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Korte, D., Carraro, G., Fresno, F. et al. Thermal Properties of Surface-Modified \(\upalpha \)- and \(\upvarepsilon \)-Fe\(_{2}\hbox {O}_{3}\) Photocatalysts Determined by Beam Deflection Spectroscopy. Int J Thermophys 35, 2107–2114 (2014). https://doi.org/10.1007/s10765-014-1739-5

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  • DOI: https://doi.org/10.1007/s10765-014-1739-5

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