| Title: | ▫$TiO_2$▫-based heterostructure containing ▫$g-C_3N_4$▫ for an effective photocatalytic treatment of a textile dye |
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| Authors: | ID Kocijan, Martina (Author)
ID Vukšić, Milan (Author)
ID Kurtjak, Mario, Institut "Jožef Stefan" (Author)
ID Ćurković, Lidija (Author)
ID Vengust, Damjan, Institut "Jožef Stefan" (Author)
ID Podlogar, Matejka, Institut "Jožef Stefan" (Author) |
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| Files: |  URL - Source URL, visit https://www.mdpi.com/2073-4344/12/12/1554/pdf?version=1669898936
 PDF - Presentation file, download (4,46 MB)
MD5: E02D03647040F6F910BA655EE8FE72D7
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | Water pollution has become a serious environmental issue. The textile industries using textile dyes are considered to be one of the most polluting of all industrial sectors. The application of solar-light semiconductor catalysts in wastewater treatment, among which TiO2 can be considered a prospective candidate, is limited by rapid recombination of photogenerated charge carriers. To address these limitations, TiO2 was tailored with graphitic carbon nitride (g-C3N4) to develop a heterostructure of g-C3N4@TiO2. Herein, a simple hydrothermal synthesis of TiO2@g-C3N4 is presented, using titanium isopropoxide (TTIP) and urea as precursors. The morphological and optical properties and the structure of g-C3N4, TiO2, and the prepared heterostructure TiO2@g-C3N4 (with different wt.% up to 32%), were analyzed by various laboratory methods. The photocatalytic activity was studied through the degradation of methylene blue (MB) aqueous solution under UV-A and simulated solar irradiation. The results showed that the amount of g-C3N4 and the irradiation source are the most important influences on the efficiency of MB removal by g-C3N4@TiO2. Photocatalytic degradation of MB was also examined in realistic conditions, such as natural sunlight and different aqueous environments. The synthesized g-C3N4@TiO2 nanocomposite showed superior photocatalytic properties in comparison with pure TiO2 and g-C3N4, and is thus a promising new photocatalyst for real-life implementation. The degradation mechanism was investigated using scavengers for electrons, photogenerated holes, and hydroxyl radicals to find the responsible species for MB degradation. |
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| Keywords: | UV-A, simulated solar light, natural sunlight, water matrices, scavengers |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 20.10.2022 |
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| Article acceptance date: | 28.11.2022 |
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| Publication date: | 01.12.2022 |
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| Publisher: | MDPI |
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| Year of publishing: | 2022 |
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| Number of pages: | str. 1-15 |
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| Numbering: | Vol. 12, iss. 12 |
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| Source: | Švica |
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| PID: | 20.500.12556/DiRROS-24802  |
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| UDC: | 544.3/.4 |
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| ISSN on article: | 2073-4344 |
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| DOI: | 10.3390/catal12121554 |
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| COBISS.SI-ID: | 132140035 |
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| Copyright: | © 2022 by the authors. |
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| Note: | Nasl. z nasl. zaslona;
Soavtorji iz Slovenije: Mario Kurtjak, Damjan Vengust, Matejka Podlogar;
Opis vira z dne 2. 12. 2022;
Št. članka: 1554;
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| Publication date in DiRROS: | 19.12.2025 |
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| Views: | 7 |
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| Downloads: | 4 |
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