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Article

Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton Catalyst

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Biomaterials Research Laboratory, Institute of Inorganic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena 3/7, 1048 Riga, Latvia
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Research Laboratory of Functional Materials Technologies, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena 3/7, 1048 Riga, Latvia
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Institute of Atomic physics and spectroscopy, University of Latvia, Skunu 4, 1050 Riga, Latvia
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Institute of Physics, University of Tartu, W. Ostwaldi Street 1, 50411 Tartu, Estonia
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Institute of Solid State Physics, University of Latvia, Kengaraga 8, LV-1063 Riga, Latvia
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Water Research Laboratory, Faculty of Civil Engineering, Riga Technical University, Paula Valdena 1, 1048 Riga, Latvia
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Author to whom correspondence should be addressed.
Catalysts 2020, 10(7), 778; https://doi.org/10.3390/catal10070778
Received: 19 June 2020 / Revised: 9 July 2020 / Accepted: 10 July 2020 / Published: 12 July 2020
(This article belongs to the Special Issue Recently Advance in Nanoparticle for Photocatalysis)
The hematite photo-Fenton catalysis has attracted increasing attention because it offers strong oxidation of organic pollutants under visible light at neutral pH. In the present work, aqueous synthesis of hematite photo-Fenton catalysts with high activity is demonstrated. We compare photo-Fenton activity for hematite obtained by hydrolyzation at 60 °C or by a thermally induced transformation from iron-bearing nanoparticles, such as amorphous iron oxyhydroxide or goethite. A link between their structure and visible light photo-Fenton reactivity is established. The highest activity was observed for hematite obtained from goethite nanowires due to oblong platelet-like structure, high surface area and the presence of nanopores. View Full-Text
Keywords: hematite; photo-Fenton; goethite; water purification hematite; photo-Fenton; goethite; water purification
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MDPI and ACS Style

Šutka, A.; Šutka, A.; Vanags, M.; Spule, A.; Eglītis, R.; Vihodceva, S.; Šmits, K.; Tamm, A.; Mežule, L. Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton Catalyst. Catalysts 2020, 10, 778. https://doi.org/10.3390/catal10070778

AMA Style

Šutka A, Šutka A, Vanags M, Spule A, Eglītis R, Vihodceva S, Šmits K, Tamm A, Mežule L. Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton Catalyst. Catalysts. 2020; 10(7):778. https://doi.org/10.3390/catal10070778

Chicago/Turabian Style

Šutka, Anna, Andris Šutka, Mārtiņš Vanags, Arnita Spule, Raivis Eglītis, Svetlana Vihodceva, Krišjānis Šmits, Aile Tamm, and Linda Mežule. 2020. "Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton Catalyst" Catalysts 10, no. 7: 778. https://doi.org/10.3390/catal10070778

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