Crystalline F-doped titanium dioxide nanoparticles decorated
with graphene quantum dots for improving the photodegradation
of water pollutants

J 2023

Crystalline F-doped titanium dioxide nanoparticles decorated with graphene quantum dots for improving the photodegradation of water pollutants

GOMEZ PEREZ, Inmaculada Jennifer, Miguel DÍAZ-SÁNCHEZ, Naděžda PIZÚROVÁ, Lenka ZAJÍČKOVÁ, Sanjiv PRASHAR et. al.

Basic information

Original name

Crystalline F-doped titanium dioxide nanoparticles decorated with graphene quantum dots for improving the photodegradation of water pollutants

Authors

GOMEZ PEREZ, Inmaculada Jennifer (724 Spain, guarantor, belonging to the institution), Miguel DÍAZ-SÁNCHEZ, Naděžda PIZÚROVÁ, Lenka ZAJÍČKOVÁ (203 Czech Republic, belonging to the institution), Sanjiv PRASHAR and Santiago GÓMEZ-RUIZ

Edition

Journal of Photochemistry and Photobiology A: Chemistry, Elsevier Science, 2023, 1010-6030

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10302 Condensed matter physics

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 4.300 in 2022

RIV identification code

RIV/00216224:14310/23:00133044

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1016/j.jphotochem.2023.114875

UT WoS

001055605800001

Keywords in English

Graphene quantum dots; Microwave; Titanium dioxide; Functionalization; Photocatalysis; Wastewater treatment

Abstract

V originále

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).

Links

EF17_043/0009632, research and development project

Name: CETOCOEN Excellence

EF20_079/0017045, research and development project

Name: MSCAfellow4@MUNI

LM2018121, research and development project

Name: Výzkumná infrastruktura RECETOX (Acronym: RECETOX RI)

Investor: Ministry of Education, Youth and Sports of the CR, RECETOX RI

857560, interní kód MU
(CEP code: EF17_043/0009632)

Name: CETOCOEN Excellence (Acronym: CETOCOEN Excellence)

Investor: European Union, Spreading excellence and widening participation

90110, large research infrastructures

Name: CzechNanoLab

Citovat

GOMEZ PEREZ, Inmaculada Jennifer, Miguel DÍAZ-SÁNCHEZ, Naděžda PIZÚROVÁ, Lenka ZAJÍČKOVÁ, Sanjiv PRASHAR and Santiago GÓMEZ-RUIZ. Crystalline F-doped titanium dioxide nanoparticles decorated with graphene quantum dots for improving the photodegradation of water pollutants. Journal of Photochemistry and Photobiology A: Chemistry. Elsevier Science, 2023, vol. 443, September, p. 1-9. ISSN 1010-6030. Available from: https://dx.doi.org/10.1016/j.jphotochem.2023.114875.

@article{2361597,
   author = {Gomez Perez, Inmaculada Jennifer and DíazandSánchez, Miguel and Pizúrová, Naděžda and Zajíčková, Lenka and Prashar, Sanjiv and GómezandRuiz, Santiago},
   article_number = {September},
   doi = {http://dx.doi.org/10.1016/j.jphotochem.2023.114875},
   keywords = {Graphene quantum dots; Microwave; Titanium dioxide; Functionalization; Photocatalysis; Wastewater treatment},
   language = {eng},
   issn = {1010-6030},
   journal = {Journal of Photochemistry and Photobiology A: Chemistry},
   title = {Crystalline F-doped titanium dioxide nanoparticles decorated with graphene quantum dots for improving the photodegradation of water pollutants},
   url = {https://doi.org/10.1016/j.jphotochem.2023.114875},
   volume = {443},
   year = {2023}
}

TY  - JOUR
ID  - 2361597
AU  - Gomez Perez, Inmaculada Jennifer - Díaz-Sánchez, Miguel - Pizúrová, Naděžda - Zajíčková, Lenka - Prashar, Sanjiv - Gómez-Ruiz, Santiago
PY  - 2023
TI  - Crystalline F-doped titanium dioxide nanoparticles decorated with graphene quantum dots for improving the photodegradation of water pollutants
JF  - Journal of Photochemistry and Photobiology A: Chemistry
VL  - 443
IS  - September
SP  - 1-9
EP  - 1-9
PB  - Elsevier Science
SN  - 10106030
KW  - Graphene quantum dots
KW  - Microwave
KW  - Titanium dioxide
KW  - Functionalization
KW  - Photocatalysis
KW  - Wastewater treatment
UR  - https://doi.org/10.1016/j.jphotochem.2023.114875
N2  - 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).
ER  -

GOMEZ PEREZ, Inmaculada Jennifer, Miguel DÍAZ-SÁNCHEZ, Naděžda PIZÚROVÁ, Lenka ZAJÍČKOVÁ, Sanjiv PRASHAR and Santiago GÓMEZ-RUIZ. Crystalline F-doped titanium dioxide nanoparticles decorated with graphene quantum dots for improving the photodegradation of water pollutants. \textit{Journal of Photochemistry and Photobiology A: Chemistry}. Elsevier Science, 2023, vol.~443, September, p.~1-9. ISSN~1010-6030. Available from: https://dx.doi.org/10.1016/j.jphotochem.2023.114875.

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