Nitrogen-doped luminescent carbon nanodots for optimal photo-generation of hydroxyl radicals and visible-light expanded photo-catalysis

Ortega-Liébana, M. (Universidad de Zaragoza) ; Hueso, J. L. ; Ferdousi, S. ; Yeung, K. L. ; Santamaría, Jesús (Universidad de Zaragoza)

Resumen: Luminescent carbon nanodots (CNDs) have been obtained by hydrothermal processing of ascorbic acid (AA) and ethanolamine (EN). The resulting N-doped carbon nanostructures exhibit interesting and tunable emission capabilities with a dual behavior as down-converters and more importantly, as up-converting quantum dots. Herein, we also evaluate the optical response of these CNDs to selectively generate highly reactive oxidative hydroxyls (OH) upon irradiation with different light-emitting diodes (LEDs) in the visible-NIR range. Finally, the role of the N-doped CNDs as nano-sensitizers to maximize the solar light harvesting and expand the photo-catalytic response of a commonly used UV-active catalyst such as TiO2 was successfully tested in the degradation of an organo-chlorinated compound under visible light.

Idioma: Inglés

DOI: 10.1016/j.diamond.2016.03.021

Año: 2016

Publicado en: Diamond and Related Materials 65 (2016), 176-182
ISSN: 0925-9635

Factor impacto JCR: 2.561 (2016)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 91 / 273 = 0.333 (2016) - Q2 - T2

Factor impacto SCIMAGO: 0.766 - Chemistry (miscellaneous) (Q1) - Electrical and Electronic Engineering (Q1) - Electronic, Optical and Magnetic Materials (Q1) - Materials Chemistry (Q1) - Mechanical Engineering (Q1) - Physics and Astronomy (miscellaneous) (Q2)

Financiación: info:eu-repo/grantAgreement/EUR/ERC/HECTOR-267626
Financiación: info:eu-repo/grantAgreement/EC/FP7/294094/EU/Synthesis and characterization of NANOstructured materials with LumInescent properties for diaGnostic and tHerapeuTic applications/NANOLIGHT

Tipo y forma: Article (Published version)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)