Wyszukiwarka
Novel composite of Zn/Ti-layered double hydroxide coupled with MXene for the efficient photocatalytic degradation of pharmaceuticals
Abstrakt
In the present study, a hybrid photocatalyst of Zn/Ti layered double hydroxide (LDH) coupled with MXene – Ti3C2 was synthesized for the first time and applied in photocatalytic degradation of acetaminophen and ibuprofen, two commonly present in the natural environment and prone to accumulate in the aquatic ecosystem pharmaceuticals. The effect of MXene content (0.5 wt%, 2.5 wt%, and 5 wt%) on the photocatalytic activity of LDH/MXene composite was investigated. The composite of LDH/MXene containing 2.5 wt% of MXene revealed the highest photocatalytic activity in the degradation of acetaminophen (100% within 40 minutes) and ibuprofen (99.7% within 60 minutes). Furthermore, an improvement in acetaminophen and ibuprofen mineralization was observed for the composite material. Meanwhile, the introduction of interfering ions (Na+, Ca2+, Mg2+, Cl-, SO42-) in the model seawater did not affect the removal efficiency of both pharmaceuticals. The photocatalytic experiment performed in the four subsequent cycles, as well as FTIR, TEM, and XPS analyses after the photodegradation process confirmed the excellent stability and reusability of the prepared composite material. In order to evaluate the effect of various reactive oxidizing species (ROS) on the photocatalytic process, the trapping experiment was applied. It was noticed that •O2- had the main contribution in photocatalytic degradation of acetaminophen, while •OH and h+ mainly affected the degradation of ibuprofen. Finally, based on the results of Mott Schottky analysis, bandgap calculation, and ROS trapping experiment, the possible mechanism for pharmaceuticals degradation was proposed. This research illustrates the feasibility and novelty of the treatment of pharmaceuticals by LDH/MXene composites, implying that MXene plays a significant role in the electron-hole separation and thus high photocatalytic activity.
Cytowania
-
2 3
CrossRef
-
0
Web of Science
-
2 2
Scopus
Autorzy (6)
-
Paweł Głuchowski
Cytuj jako
Pełna treść
- Wersja publikacji
- Accepted albo Published Version
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.chemosphere.2022.136191
- Licencja
-
otwiera się w nowej karcie
Słowa kluczowe
Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
-
CHEMOSPHERE
nr 308,
ISSN: 0045-6535 - Język:
- angielski
- Rok wydania:
- 2022
- Opis bibliograficzny:
- Grzegórska A., Wysocka I., Głuchowski P., Ryl J., Karczewski J., Zielińska-Jurek A.: Novel composite of Zn/Ti-layered double hydroxide coupled with MXene for the efficient photocatalytic degradation of pharmaceuticals// CHEMOSPHERE -Vol. 308,iss. Part 1 (2022), s.136191-
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.chemosphere.2022.136191
- Źródła finansowania:
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 148 razy
Publikacje, które mogą cię zainteresować
Magnetically recyclable TiO2/MXene/MnFe2O4 photocatalyst for enhanced peroxymonosulphate-assisted photocatalytic degradation of carbamazepine and ibuprofen under simulated solar light
- A. Grzegórska,
- J. C. Ofoegbu,
- L. Cervera-Gabalda
- + 3 autorów
Peroxymonosulfate-assisted photocatalytic degradation of artificial sweeteners in water
- J. Smoliński,
- A. F. Borzyszkowska,
- P. Kubica
- + 1 autorów
Degradation of tetracycline antibiotic utilizing light driven-activated oxone in the presence of g-C3N4/ZnFe LDH binary heterojunction nanocomposite
- R. D. Cheshmeh Soltani,
- E. Abolhasani,
- M. Mashayekhi
- + 3 autorów