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

Catalysts 2020
Anna Šutka, Andris Šutka, Mārtiņš Vanags, Arnita Spule, Raivis Eglītis, Svetlana Vihodceva, Krišjānis Šmits, Aile Tamm, Linda Mežule

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.

DOI
10.3390/catal10070778
Hyperlink
https://www.mdpi.com/2073-4344/10/7/778

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, Vol. 10, No. 7, Article number 778. ISSN 2073-4344. Available from: doi:10.3390/catal10070778

Publication language
English (en)