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Synthesis and characterization of plasmonic ▫$Au/TiO_2$▫ nanorod solids for heterogeneous photocatalysisSlapničar, Špela ...Plasmonic Au (1 wt%) catalysts deposited on hydrothermally synthesized TiO2 nanorods (TNR) were investigated in this study. Based on the duration of mixing of the Au precursor/TNR suspension during ... the wet impregnation synthesis and parameters of the end calcination, Au/TiO2 catalysts with different sizes of Au nanoparticles (Au NPs) were obtained. The prepared solids were thoroughly characterized by several instrumental techniques to investigate property-activity relationships. Regardless of the size of Au particles on the catalyst surface, an absorption peak at 550 nm occurred in all UV-Vis diffuse reflectance spectra of the investigated Au/TiO2 catalysts, which is characteristic of the localized surface plasmon resonance effect exerted by metallic Au NPs. By measuring the formation of reactive oxygen species under visible-light illumination using various scavengers, the production of superoxide anion radicals (O2•single bond) and hydroxyl radicals were identified, however, the former were found to represent the main reactive oxygen species that govern the oxidation of aqueous bisphenol A (BPA) employed as a model organic pollutant. The activity of Au/TiO2 catalysts for the generation of O2•single bond radicals (and BPA oxidation) increases by increasing the Schottky barrier height, which is due to the slow reduction of water-dissolved O2 on the catalyst surface.Source: Journal of environmental chemical engineering [Elektronski vir]. - ISSN 2213-3437 (Vol. 11, iss. 3, [article no.] 109835, Jun. 2023, str. 1-11)Type of material - e-article ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 147848195
Author
Slapničar, Špela |
Žerjav, Gregor, 1981- |
Zavašnik, Janez, 1981- |
Finšgar, Matjaž |
Pintar, Albin
Topics
heterogeneous photocatalysis |
titanate nanorods |
gold nanoparticles |
wet impregnation |
localized surface plasmon resonance effect |
heterogena fotokataliza |
titanatove nanopalčke |
zlati nanodelci |
impregnacija
Author | Slapničar, Špela ... |
Title | Synthesis and characterization of plasmonic ▫$Au/TiO_2$▫ nanorod solids for heterogeneous photocatalysis |
Publication date | 2023-06-01 |
COBISS.SI-ID | 147848195 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
---|---|---|---|
Integralni pristop k preprečevanju onesnaževanja voda | P2-0150-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Tekstilna kemija in napredni tekstilni materiali | P2-0118-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
Files that belong to the publication
Link |
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https://www.sciencedirect.com/science/article/pii/S2213343723005742?via%3Dihub |
https://dirros.openscience.si/IzpisGradiva.php?id=16467 |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Slapničar, Špela | 55819 |
Žerjav, Gregor, 1981- | 32927 |
Zavašnik, Janez, 1981- | 33329 |
Finšgar, Matjaž | 28477 |
Pintar, Albin | 11874 |
Source: Personal bibliographies
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