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Title:Photocatalytic CO2 reduction over mesoporous TiO2 photocatalysts
Authors:ID Reli, Martin (Author)
ID Nadrah, Peter (Author)
ID Filip Edelmannová, Miroslava (Author)
ID Ricka, Rudolf (Author)
ID Sever Škapin, Andrijana (Author)
ID Lavrenčič Štangar, Urška (Author)
ID Kočí, Kamila (Author)
Files:URL URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S1369800123006200?via%3Dihub
 
.pdf PDF - Presentation file. (2,42 MB, This file will be accessible after 24.10.2025)
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Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
Abstract:In this study, we investigated different synthesis methods (template-free and template-based) using copolymers of poly(ethylene oxide) and poly(propylene oxide) to enhance the CO2 reduction activity of mesoporous TiO2. Our main goal was to identify key factors affecting photocatalyst efficiency and selectivity. We compared the newly synthesized TiO2 photocatalysts with the commercial photocatalyst P25. Among the materials studied, TiO2-P123 in its pure anatase form demonstrated the highest photoreduction efficiency and CO2 selectivity. In contrast, TiO2-EG, TiO2-F127, and P25, which contained both rutile and anatase phases, exhibited decreased photoactivity due to the formation of a type II heterojunction between the phases and higher oxygen adsorption on rutile's surface. Additionally, we observed that the choice of chemicals for photocatalyst preparation significantly influenced the specific surface area. TiO2-P123, the most active photocatalyst, had the highest specific surface area, providing more reactive sites for improved light absorption efficiency and prolonged electron-hole pair lifetimes, resulting in enhanced photocatalytic activity. We also calculated apparent quantum yields to support our findings.
Keywords:CO2 reduction, TiO2, photocatalysis, mesoporous material, Sol-gel method
Publication status:Published
Publication version:Author Accepted Manuscript
Publication date:24.10.2023
Publisher:Pergamon
Year of publishing:2024
Number of pages:str. 1-9
Numbering:Vol. 169, [article no.] 107927
PID:20.500.12556/DiRROS-17276 New window
UDC:54
ISSN on article:1369-8001
DOI:10.1016/j.mssp.2023.107927 New window
COBISS.SI-ID:170802691 New window
Copyright:© 2023 Elsevier Ltd. All rights reserved
Note:Nasl. z nasl. zaslona; Opis vira z dne 3. 11. 2023;
Publication date in DiRROS:14.11.2023
Views:975
Downloads:169
Metadata:XML DC-XML DC-RDF
:
RELI, Martin, NADRAH, Peter, FILIP EDELMANNOVÁ, Miroslava, RICKA, Rudolf, SEVER ŠKAPIN, Andrijana, LAVRENČIČ ŠTANGAR, Urška and KOČÍ, Kamila, 2024, Photocatalytic CO2 reduction over mesoporous TiO2 photocatalysts. Materials Science in Semiconductor Processing [online]. 2024. Vol. 169,  107927, p. 1–9. [Accessed 30 March 2025]. DOI 10.1016/j.mssp.2023.107927. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=17276
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Record is a part of a journal

Title:Materials Science in Semiconductor Processing
Shortened title:Mater. sci. semicond. process.
Publisher:Pergamon
ISSN:1369-8001
COBISS.SI-ID:15628327 New window

Document is financed by a project

Funder:Other - Other funder or multiple funders
Project number:LM2023056
Name:Energy Waste Recovery and Gas Treatment
Funder:Other - Other funder or multiple funders
Project number:GF21-24268K
Name:CO2 transformation to valuable chemicals by catalytic and photocatalytic ways over highly active materials
Funder:ARRS - Slovenian Research Agency
Project number:N2-0188
Name:Katalitsko in fotokatalitsko aktivni materiali za pretvorbo CO2 v koristne produkte
Funder:ARRS - Slovenian Research Agency
Project number:P2-0273
Name:Gradbeni objekti in materiali
Funder:ARRS - Slovenian Research Agency
Project number:P1-0134
Name:Kemija za trajnostni razvoj

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:01.01.2024
Applies to:Text and Data Mining valid from 2024-01-01

Secondary language

Language:Slovenian
Keywords:CO2 redukcija, TiO2, fotokataliza, mezoporozni material, Sol-gel metoda


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