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Title:Optimization method based on simplex for surface area improved photocatalytic performance of g−C3N4
Authors:ID Roškarič, Matevž (Author)
ID Zavašnik, Janez (Author)
ID Dániel Zámbó, Dániel (Author)
ID Kotnik, Tomaž (Author)
ID Kovačič, Sebastijan (Author)
ID Žerjav, Gregor (Author)
ID Pintar, Albin (Author)
Files:URL URL - Source URL, visit https://pubs.acs.org/doi/10.1021/acscatal.3c03394#
 
.pdf PDF - Presentation file, download (3,78 MB)
MD5: A0034D74F8E674A759BA39CA99CDDE69
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo KI - National Institute of Chemistry
Abstract:The main objective of the present study was to increase the specific surface area (SBET) of graphitic carbon nitride (g-C3N4) prepared from dicyandiamide by effectively modifying the synthesis procedure using the Simplex optimization method. A remarkable increase in SBET was achieved in only a few steps, with the highest value of 86 m2/g. Compared to the reference material, the improved photocatalyst exhibited enhanced and unique structural, textural, optical, and electronic properties, reflected in the improved ability of the photocatalyst to degrade a variety of organic pollutants dissolved in water. By performing scavenger and spin-trapping experiments, it was confirmed that the major reactive oxygen species formed under visible-light illumination of the enhanced photocatalyst were singlet oxygen (1O2) and superoxide anion radicals (O2–•) with a purposed formation mechanism. The enhanced formation of 1O2 enabled high activity and stability of the optimized materials as well as selective response to degradation of the pharmaceutical compounds studied. By using the simple and fast Simplex optimization algorithm to determine new synthesis parameters, we obtained an improved g-C3N4 that completely degrades bisphenol A under the conditions studied.
Publication status:Published
Publication version:Version of Record
Publication date:29.09.2023
Publisher:American Chemical Society
Year of publishing:2023
Number of pages:str. 13282–13300
Numbering:Vol. 13, iss. 20
Source:ACS Catalysis
PID:20.500.12556/DiRROS-17204-9eda1777-5e4e-6856-85b3-a1b6a8c58dae New window
UDC:620.1/.2
ISSN on article:2155-5435
DOI:doi.org/10.1021/acscatal.3c03394 New window
COBISS.SI-ID:167925507 New window
Copyright:© 2023 American Chemical Society.
Note:Nasl. z nasl. zaslona; Opis vira z dne 11. 10. 2023;
Publication date in DiRROS:08.11.2023
Views:853
Downloads:389
Metadata:XML DC-XML DC-RDF
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ROŠKARIČ, Matevž, ZAVAŠNIK, Janez, DÁNIEL ZÁMBÓ, Dániel, KOTNIK, Tomaž, KOVAČIČ, Sebastijan, ŽERJAV, Gregor and PINTAR, Albin, 2023, Optimization method based on simplex for surface area improved photocatalytic performance of g−C3N4. ACS catalysis [online]. 2023. Vol. 13, no. 20. [Accessed 16 April 2025]. DOI doi.org/10.1021/acscatal.3c03394. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=17204
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Record is a part of a journal

Title:ACS catalysis
Shortened title:ACS catal.
Publisher:American Chemical Society
ISSN:2155-5435
COBISS.SI-ID:518529817 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:P2-0150
Name:Integralni pristop k preprečevanju onesnaževanja voda
Funder:Other - Other funder or multiple funders
Funding programme:Ministry of Innovation and Technology of Hungary
Project number:TKP2021-NKTA-05
Name:National Research, Development and Innovation Fund (NRDI)
Funder:Other - Other funder or multiple funders
Funding programme:National Research, Development and Innovation Fund (NRDI)
Project number:FK 142148

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:materiali, kompoziti, grafitni ogljikov nitrid, fotokataliza, sončna svetloba


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