| Title: | Metal and non-metal modified titania : the effect of phase composition and surface area on photocatalytic activity |
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| Authors: | ID Žener, Boštjan (Author)
ID Matoh, Lev (Author)
ID Reli, Martin (Author)
ID Sever Škapin, Andrijana (Author)
ID Cerc Korošec, Romana (Author) |
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| Files: |  URL - Source URL, visit https://journals.matheo.si/index.php/ACSi/article/view/7200
 PDF - Presentation file, download (1,00 MB)
MD5: 698E1F10822703B91FF8C84C8845C5CA
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  ZAG - Slovenian National Building and Civil Engineering Institute
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| Abstract: | The application of TiO 2 photocatalysis in various environmental fields has been extensively studied in the last decades due to its ability to induce the degradation of adsorbed organic pollutants. In the present work, TiO 2 powders doped and co-doped with sulfur and nitrogen and modified with platinum were prepared by particulate sol-gel synthesis. PXRD measurements revealed that the replacement of HCl with H 2SO4 during synthesis reduced the size of the crystallites from ~ 30 nm to ~20 nm, increasing the surface area from ~44 m2/g to ~80 m2/g. This is consistent with the photocatalytic activity of the samples and the measured photocurrent behavior of the photocatalysts. The results showed that the prop- erties of the powders (i.e., surface area, crystallite size, photocurrent behavior) depend strongly not only on the type but also on the amount of acid and dopants used in the synthesis. Doping, co-doping and modification of TiO 2 samples with nitrogen, sulfur and platinum increased their photocatalytic activity up to 6 times. |
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| Keywords: | titanium dioxide, powders, doping, photocatalysis, photocurrent, SEM |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 15.03.2022 |
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| Publisher: | Slovensko kemijsko društvo, =Slovenian Chemical Society |
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| Year of publishing: | 2022 |
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| Number of pages: | str. 217-226 |
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| Numbering: | Vol. 69, no. 1 |
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| PID: | 20.500.12556/DiRROS-15836  |
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| UDC: | 546.82-31:544.526.5 |
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| ISSN on article: | 1580-3155 |
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| DOI: | 10.17344/acsi.2021.7200 |
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| COBISS.SI-ID: | 98258947 |
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| Copyright: | Copyright (c) 2020 Boštjan Žener, Lev Matoh, Martin Reli, Andrijana Sever Škapin, Romana Cerc Korošec |
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| Note: | Nasl. z nasl. zaslona;
Soavtorji: Lev Matoh, Martin Reli, Andrijana Sever Škapin, Romana Cerc Korošec;
Opis vira z dne 21. 2. 2022;
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| Publication date in DiRROS: | 04.05.2023 |
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| Views: | 322 |
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| Downloads: | 137 |
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