MXene-Derived Oxide Nanoheterostructures for Photocatalytic Sulfamethoxazole Degradation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F24%3A00136720" target="_blank" >RIV/00216224:14310/24:00136720 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acsanm.4c02523" target="_blank" >https://pubs.acs.org/doi/10.1021/acsanm.4c02523</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsanm.4c02523" target="_blank" >10.1021/acsanm.4c02523</a>
Alternative languages
Result language
angličtina
Original language name
MXene-Derived Oxide Nanoheterostructures for Photocatalytic Sulfamethoxazole Degradation
Original language description
Herein, we report for the first time the use of ternary oxide nanoheterostructure photocatalysts derived from (Nby, Ti1–y)2CTx MXene in the treatment of water. Three different compositions of binary MXenes, viz., (Ti0.75Nb0.25)2CTx, (Ti0.5Nb0.5)2CTx, and (Ti0.25Nb0.75)2CTx (with Tx = OH, F, and Cl), were used as single-source precursor to produce TiNbOx-3:1, TiNbOx-1:1, and TiNbOx-1:3 by controlled-atmosphere thermal oxidation. Phase identification and Le Bail refinements confirmed the presence of a mixture of rutile TiO2 and monoclinic Ti2Nb10O29. Morphological investigations through scanning and transmission electron microscopies revealed the retention of layered nanostructures from the MXene precursors and the fusion of TiO2 and Ti2Nb10O29 nanoparticles in forming nanosheets. Among the three oxide nanoheterostructures, TiNbOx-3:1 exhibited the best photocatalytic performance by the removal of 83% of sulfamethoxazole (SMX) after 2 h of reaction. Such a result is explained by a complex influence of structural, morphological, and electronic properties since TiNbOx-3:1 consisted of small-sized crystallites (40–70 nm) and possessed a higher surface area. The suggested electronic band structure is a type-II heterojunction, where the recombination of electrons and holes is minimized during photocatalytic reactions. The photocatalytic degradation of SMX was promoted by the attack of •OH, as evidenced by the detection of 2.2 μM •OH, using coumarin as a probe. This study highlights the potential application of MXene-derived oxide nanoheterostructures in wastewater treatment.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
<a href="/en/project/LM2023039" target="_blank" >LM2023039: R&D centre for plasma and nanotechnology surface modifications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Applied Nano Materials
ISSN
2574-0970
e-ISSN
2574-0970
Volume of the periodical
7
Issue of the periodical within the volume
14
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
16506-16515
UT code for WoS article
001272798300001
EID of the result in the Scopus database
2-s2.0-85199093270