Laser-driven direct synthesis of carbon nanodots and application as sensitizers for visible-light photocatalysis

Mas, Nuria ; Hueso, José L. ; Martínez, Gema (Universidad de Zaragoza) ; Madrid, Ainhoa ; Mallada, Reyes (Universidad de Zaragoza) ; Ortega-Liébana, M. Carmen ; Bueno-Alejo, Carlos ; Santamaría, Jesús (Universidad de Zaragoza)

Resumen: We present the first successful synthesis of monodisperse carbon nanodots (CNDs) with tunable photoluminescence (PL) carried out by laser pyrolysis of two common volatile organic precursors such as toluene and pyridine. Remarkably, the initial chemical composition of the precursor determines the formation of undoped or N-doped CNDs and their corresponding absorption response in the visible range (expanded for the latter). We demonstrate the control and versatility of this synthesis method to tune the final outcome and its potential to explore a great number of potential solvent candidates. Furthermore, we have successfully exploited these CNDs (both undoped and N-doped) as effective sensitizers of TiO2 nanoparticles in the visible-light driven photo-degradation of a cationic dye selected as model organic pollutant.

Idioma: Inglés

DOI: 10.1016/j.carbon.2019.09.073

Año: 2020

Publicado en: Carbon 156 (2020), 453-462
ISSN: 0008-6223

Factor impacto JCR: 9.594 (2020)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 42 / 333 = 0.126 (2020) - Q1 - T1
Categ. JCR: CHEMISTRY, PHYSICAL rank: 27 / 162 = 0.167 (2020) - Q1 - T1

Factor impacto SCIMAGO: 2.25 - Materials Science (miscellaneous) (Q1) - Chemistry (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/EC/FP7/294094/EU/Synthesis and characterization of NANOstructured materials with LumInescent properties for diaGnostic and tHerapeuTic applications/NANOLIGHT
Financiación: info:eu-repo/grantAgreement/EC/H2020/742684/EU/Catalytic Dual-Function Devices Against Cancer/CADENCE
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2016-79419-R

Tipo y forma: Artículo (PostPrint)

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