Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton Catalyst
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 act...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-07-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/10/7/778 |
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| author | Anna Šutka Andris Šutka Mārtiņš Vanags Arnita Spule Raivis Eglītis Svetlana Vihodceva Krišjānis Šmits Aile Tamm Linda Mežule |
| author_facet | Anna Šutka Andris Šutka Mārtiņš Vanags Arnita Spule Raivis Eglītis Svetlana Vihodceva Krišjānis Šmits Aile Tamm Linda Mežule |
| author_sort | Anna Šutka |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T18:31:39Z |
| format | Article |
| id | doaj.art-85e940f722c942ff8d494866e9a20e27 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T18:31:39Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-85e940f722c942ff8d494866e9a20e272023-11-20T06:33:41ZengMDPI AGCatalysts2073-43442020-07-0110777810.3390/catal10070778Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton CatalystAnna Šutka0Andris Šutka1Mārtiņš Vanags2Arnita Spule3Raivis Eglītis4Svetlana Vihodceva5Krišjānis Šmits6Aile Tamm7Linda Mežule8Biomaterials Research Laboratory, Institute of Inorganic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena 3/7, 1048 Riga, LatviaResearch Laboratory of Functional Materials Technologies, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena 3/7, 1048 Riga, LatviaResearch Laboratory of Functional Materials Technologies, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena 3/7, 1048 Riga, LatviaResearch Laboratory of Functional Materials Technologies, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena 3/7, 1048 Riga, LatviaResearch Laboratory of Functional Materials Technologies, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena 3/7, 1048 Riga, LatviaResearch Laboratory of Functional Materials Technologies, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena 3/7, 1048 Riga, LatviaInstitute of Solid State Physics, University of Latvia, Kengaraga 8, LV-1063 Riga, LatviaInstitute of Physics, University of Tartu, W. Ostwaldi Street 1, 50411 Tartu, EstoniaWater Research Laboratory, Faculty of Civil Engineering, Riga Technical University, Paula Valdena 1, 1048 Riga, LatviaThe 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.https://www.mdpi.com/2073-4344/10/7/778hematitephoto-Fentongoethitewater purification |
| spellingShingle | Anna Šutka Andris Šutka Mārtiņš Vanags Arnita Spule Raivis Eglītis Svetlana Vihodceva Krišjānis Šmits Aile Tamm Linda Mežule Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton Catalyst Catalysts hematite photo-Fenton goethite water purification |
| title | Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton Catalyst |
| title_full | Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton Catalyst |
| title_fullStr | Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton Catalyst |
| title_full_unstemmed | Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton Catalyst |
| title_short | Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton Catalyst |
| title_sort | identifying iron bearing nanoparticle precursor for thermal transformation into the highly active hematite photo fenton catalyst |
| topic | hematite photo-Fenton goethite water purification |
| url | https://www.mdpi.com/2073-4344/10/7/778 |
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