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Multicomponent Cu-Mn-Fe silica supported catalysts to stimulate photo-Fenton-like water treatment under sunlight
ID Šuligoj, Andraž (Author), ID Trendafilova, Ivalina (Author), ID Maver, Ksenija (Author), ID Pintar, Albin (Author), ID Ristić, Alenka (Author), ID Dražić, Goran (Author), ID Abdelraheem, Wael H. M. (Author), ID Jagličić, Zvonko (Author), ID Arčon, Iztok (Author), ID Zabukovec Logar, Nataša (Author), ID Dionysiou, Dionysios D. (Author), ID Novak Tušar, Nataša (Author)

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Abstract
Removal of contaminants of emerging concern (CEC) from water is a serious problem. Using sunlight to assist in this process is one of the most sustainable methods for water treatment. In this study, we demonstrate that tailoring the morphology and optimizing the metal concentration in the multicomponent catalysts through an appropriate synthetic strategy leads to Fenton-like and photo-Fenton-like systems capable of effectively degrading bisphenol A and coumarin as model endocrine disruptors and coumarin as a probe for $^•$OH detection. Multicomponent Cu-Mn-Fe silica supported catalysts were prepared via direct synthesis by incorporating magnetic Fe$_3$O$_4$ nanoparticles, Mn and Cu during the formation of silica nanoparticles with interparticle mesoporosity. Comprehensive characterization by advanced microscopic and spectroscopic techniques revealed qualitatively and quantitatively the presence of magnetic Fe oxides covered with the silica support, isolated Mn cations/oxo species into silica framework and CuO particles attached to the silica framework. The Fenton-like activities of the catalysts are due to the catalytic disproportionation of H$_2$O$_2$ by Cu$^{2+}$ species and isolated Mn species in the silica support. The investigated catalysts are efficient concerning the homolytic cleavage of H$_2$O$_2$ to hydroxyl radicals, with a further positive effect of hydroxyl radical formation observed under visible-light illumination thus acting as photo-Fenton-like catalysts. Fe oxides with magnetic properties are used for easy separation of the catalyst/photocatalyst after the reaction and do not contribute to the catalytic/photocatalytic performance.

Language:English
Keywords:magnetic catalyst, photocatalyst, water treatment, sunlight, contaminants of emerging concern, photo-Fenton-like systems
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Technology
FGG - Faculty of Civil and Geodetic Engineering
Publication status:Published
Publication version:Version of Record
Year:2023
Number of pages:11 str.
Numbering:Vol. 11, iss. 5, art. 110369
PID:20.500.12556/RUL-153018 This link opens in a new window
UDC:66
ISSN on article:2213-3437
DOI:10.1016/j.jece.2023.110369 This link opens in a new window
COBISS.SI-ID:157430787 This link opens in a new window
Publication date in RUL:14.12.2023
Views:476
Downloads:35
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Record is a part of a journal

Title:Journal of environmental chemical engineering
Publisher:Elsevier
ISSN:2213-3437
COBISS.SI-ID:519695385 This link opens in a new window

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:kemijsko inženirstvo, varstvo okolja, fotokataliza, čiščenje vode, sončna svetloba

Projects

Funder:ARRS - Slovenian Research Agency
Project number:P1-0021
Name:Nanoporozni materiali

Funder:ARRS - Slovenian Research Agency
Project number:P1-0134
Name:Kemija za trajnostni razvoj

Funder:ARRS - Slovenian Research Agency
Project number:P1-0418
Name:Kemija katalizatorjev za čisti zrak

Funder:ARRS - Slovenian Research Agency
Project number:P2-0150
Name:Integralni pristop k preprečevanju onesnaževanja voda

Funder:ARRS - Slovenian Research Agency
Project number:BI-US/18-19-039

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