Autor segons l'article: Mezyen, M; El Fidha, G; Bitri, N; Harrathi, F; Ly, I; Llobet, E
Departament: Enginyeria Electrònica, Elèctrica i Automàtica
Autor/s de la URV: Llobet Valero, Eduard
Paraules clau: Photoluminescence properties temperature optical-properties irradiation gas sensor fe electrical-properties dye cu
Resum: This paper explores the impact of dysprosium (Dy) doping on structural, optical, and photocatalytic properties of tin oxide (SnO2) thin films fabricated via spray pyrolysis. Dysprosium doping levels ranged from 0 to 7 at%, and films were grown on glass substrates at 350 °C. X-ray diffraction (XRD) analysis revealed an increase in crystallite size with Dy doping, signifying improved crystalline quality. Simultaneously, dislocation density and strain decreased, indicating enhanced film quality. Texture coefficient (Tchkl) results showed a predominant crystal orientation along the (110) plane due to Dy doping. Optical band gap energy (Eg) decreased with Dy doping up to 5%. Urbach energy increased with Dy doping, suggesting atomic structural flaws and defects. Scanning electron microscopy (SEM) analysis revealed the presence of numerous micro-aggregates on the film's surface. Notably, the density of these micro-aggregates increased proportionally with higher Dy doping levels, particularly emphasizing the pronounced effect observed in SnO2:Dy 5% thin films. These findings underscore the potential of Dy-doped SnO2 thin films for advanced photocatalytic applications, with SnO2:Dy 5% exhibiting favorable properties and demonstrating a 90.99% degradation efficiency in three hours under solar irradiation.
Àrees temàtiques: Zootecnia / recursos pesqueiros Saúde coletiva Química Odontología Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Interdisciplinar Geociências General chemistry General chemical engineering Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Economia Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, multidisciplinary Chemistry (miscellaneous) Chemistry (all) Chemical engineering (miscellaneous) Chemical engineering (all) Biotecnología Biodiversidade Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: eduard.llobet@urv.cat
Identificador de l'autor: 0000-0001-6164-4342
Data d'alta del registre: 2023-12-17
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://pubs.rsc.org/en/content/articlelanding/2023/ra/d3ra05424a
URL Document de llicència: http://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Rsc Advances. 13 (44): 31151-31166
Referència de l'ítem segons les normes APA: Mezyen, M; El Fidha, G; Bitri, N; Harrathi, F; Ly, I; Llobet, E (2023). Visible light activated SnO2:Dy thin films for the photocatalytic degradation of methylene blue. Rsc Advances, 13(44), 31151-31166. DOI: 10.1039/d3ra05424a
DOI de l'article: 10.1039/d3ra05424a
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2023
Tipus de publicació: Journal Publications
Repositori URV