2024
MXene-Derived Oxide Nanoheterostructures for Photocatalytic Sulfamethoxazole Degradation
ATRI, Shalu, Elham LONI, František ZAŽÍMAL, Karol HENSEL, Maria CAPLOVICOVA et. al.Základní údaje
Originální název
MXene-Derived Oxide Nanoheterostructures for Photocatalytic Sulfamethoxazole Degradation
Autoři
ATRI, Shalu, Elham LONI, František ZAŽÍMAL (203 Česká republika, domácí), Karol HENSEL, Maria CAPLOVICOVA, Gustav PLESCH, Xin LU, Rajamani NAGARAJAN, Michael NAGUIB a Olivier MONFORT
Vydání
ACS Applied Nano Materials, Washington, D.C. American Chemical Society, 2024, 2574-0970
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10305 Fluids and plasma physics
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.900 v roce 2022
Organizační jednotka
Přírodovědecká fakulta
UT WoS
001272798300001
Klíčová slova anglicky
binary MXene; photocatalyst; sulfamethoxazole; wastewater treatment; TiNbO x
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 7. 8. 2024 13:48, Mgr. Marie Šípková, DiS.
Anotace
V originále
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.
Návaznosti
LM2023039, projekt VaV |
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90251, velká výzkumná infrastruktura |
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