Number of the records: 1
Crystalline F-doped titanium dioxide nanoparticles decorated with graphene quantum dots for improving the photodegradation of water pollutants
- 1.
SYSNO ASEP 0573476 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Crystalline F-doped titanium dioxide nanoparticles decorated with graphene quantum dots for improving the photodegradation of water pollutants Author(s) Gómez, I. J. (CZ)
Díaz-Sánchez, M. (ES)
Pizúrová, Naděžda (UFM-A) RID, ORCID
Zajíčková, L. (CZ)
Prashar, S. (ES)
Gómez-Ruiz, S. (ES)Number of authors 6 Article number 114875 Source Title Journal of Photochemistry and Photobiology A-Chemistry. - : Elsevier - ISSN 1010-6030
Roč. 443, SEP (2023)Number of pages 9 s. Language eng - English Country CH - Switzerland Keywords Graphene quantum dots ; Microwave ; Titanium dioxide ; Functionalization ; Photocatalysis ; Wastewater treatment Subject RIV JJ - Other Materials OECD category Nano-materials (production and properties) Research Infrastructure CzechNanoLab - 90110 - Vysoké učení technické v Brně Method of publishing Limited access Institutional support UFM-A - RVO:68081723 UT WOS 001055605800001 EID SCOPUS 85161355701 DOI 10.1016/j.jphotochem.2023.114875 Annotation Carbon dots are emerging photoactive materials with high chemical stability, aqueous solubility, abundant surface functional groups and low-cost production. Their great advantages, incorporated into the high photocatalytic activity of the TiO2, result in hybrid systems that overcome some of the photocatalytic drawbacks associated with TiO2. In this work, a facile synthesis of hybrids of F-doped TiO2 and N-doped graphene quantum dots (F-TiO2@N-GQDs) is reported. These systems have demonstrated efficient photocatalytic properties in light-driven pollutant reduction from water. Therefore, using a simple and low-cost synthesis method, the N-GQDs act as electron reservoirs improving the pairs e--h+ lifetime in TiO2 by decreasing charge recombination, increasing their photocatalytic capacity. The photocatalysts showed very effective degradations of different contaminants such as methylene blue (90% degradation) ciprofloxacin (62% degradation) and naproxen (60% degradation) in short periods of up to 15 min and 4-chlorophenol (59% degradation) in 30 min using UV light (300 W). Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2024 Electronic address https://www.sciencedirect.com/science/article/pii/S1010603023003404?via%3Dihub
Number of the records: 1