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Photocatalytic Reduction of $CO_{2}$ over Iron-Modified $g-C_{3}N_{4}$ Photocatalysts
| Content Provider | MDPI |
|---|---|
| Author | Miroslava, Edelmannová Kamila, Kočí Reli, Martin Papailias, Ilias Todorova, Nadia Giannakopoulou, Tatiana Dallas, Panagiotis Devlin, Eamonn Ioannidis, Nikolaos Trapalis, Christos |
| Copyright Year | 2021 |
| Description | Pure $g-C_{3}N_{4}$ sample was prepared by thermal treatment of melamine at 520 °C, and iron-modified samples (0.1, 0.3 and 1.1 wt.%) were prepared by mixing $g-C_{3}N_{4}$ with iron nitrate and calcination at 520 °C. The photocatalytic activity of the prepared materials was investigated based on the photocatalytic reduction of $CO_{2}$, which was conducted in a homemade batch reactor that had been irradiated from the top using a 365 nm Hg lamp. The photocatalyst with the lowest amount of iron ions exhibited an extraordinary methane and hydrogen evolution in comparison with the pure $g-C_{3}N_{4}$ and $g-C_{3}N_{4}$ with higher iron amounts. A higher amount of iron ions was not a beneficial for $CO_{2}$ photoreduction because the iron ions consumed too many photogenerated electrons and generated hydroxyl radicals, which oxidized organic products from the $CO_{2}$ reduction. It is clear that there are numerous reactions that occur simultaneously during the photocatalytic process, with several of them competing with $CO_{2}$ reduction. |
| Ending Page | 476 |
| Page Count | 15 |
| Starting Page | 462 |
| e-ISSN | 26737256 |
| DOI | 10.3390/photochem1030030 |
| Journal | Photochem |
| Issue Number | 3 |
| Volume Number | 1 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-11-13 |
| Access Restriction | Open |
| Subject Keyword | Photochem Environmental Engineering G-c3n4 Iron Co2 Reduction Photocatalysis |
| Content Type | Text |
| Resource Type | Article |
