Construction of Pd‐Co‐Doped CdS Heterojunctions as Efficient Platforms in Photocatalysis
Abstract: In this work, we present the structural, optical and photocatalytic properties of CdS semiconducting nanostructures, doped with palladium‐ and cobalt‐based species. XRD analysis, corroborated by Raman and XPS, demonstrated the growth of CdS crystallites in the hexagonal structure, whereas solvothermal conversion of neat precursor metal salts resulted in the formation of metallic Pd and cobalt oxide, respectively. Scanning electron microscopy imaging certified the dendritic structure of hybrids, especially in the case where CdS was grown in the presence of either palladium‐ or cobalt‐based nanoparticles. XPS surface analysis revealed that a major fraction of metallic Pd nanoparticles was converted to PdO during the in situ growth of CdS nanoparticles. The oxidation of Pd nanoparticles could be ascribed to chemisorption of oxygen phases onto the metal surface. The presence of cocatalyst nanoparticles resulted in an appreciable shift of the absorption edge of the ternary hybrids by about 50 nm. The optimized hybrid was found to photodegrade Orange G dye almost quantitatively within 2 h, by simulated solar light irradiation. Scavenging experiments revealed that hydroxy radicals were the main transient intermediate, leading to the oxidative degradation of the dye.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Construction of Pd‐Co‐Doped CdS Heterojunctions as Efficient Platforms in Photocatalysis ; day:02 ; month:05 ; year:2023 ; extent:10
Chemistry - a European journal ; (02.05.2023) (gesamt 10)
- Urheber
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Paraschoudi, Eirini N.
Bairamis, Feidias
Sygellou, Lamprini
Andrikopoulos, Konstantinos S.
Konstantinou, Ioannis
Tasis, Dimitrios
- DOI
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10.1002/chem.202300568
- URN
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urn:nbn:de:101:1-2023050315115489678571
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 11:04 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Paraschoudi, Eirini N.
- Bairamis, Feidias
- Sygellou, Lamprini
- Andrikopoulos, Konstantinos S.
- Konstantinou, Ioannis
- Tasis, Dimitrios
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