Szczegóły publikacji
Opis bibliograficzny
Efficient oxidation of diphenyl sulfide with $H_{2}O_{2}$ over heteroatom-containing MWW zeolites-the role of titanium and iron species speciation / Wiktoria Dubiel, Aleksandra JANKOWSKA, Sylwia Gnyla, Małgorzata Rutkowska, Andrzej Kowalczyk, Irena Brunarska, Włodzimierz MOZGAWA, Piotr Kuśtrowski, Lucjan Chmielarz // Journal of Environmental Chemical Engineering ; ISSN 2213-2929 . — 2026 — vol. 14 iss. 2 art. no. 122007, s. 1-19. — Bibliogr. s. 17-19, Abstr. — Publikacja dostępna online od: 2026-02-28. — A. Jankowska - dod. afiliacja: Jagiellonian University in Kraków, Faculty of Chemistry
Autorzy (9)
- Dubiel Wiktoria
- AGHJankowska Aleksandra
- Gnyla Sylwia
- Rutkowska Małgorzata
- Kowalczyk Andrzej
- Brunarska Irena
- AGHMozgawa Włodzimierz
- Kuśtrowski Piotr
- Chmielarz Lucjan
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 166433 |
|---|---|
| Data dodania do BaDAP | 2026-03-17 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jece.2026.122007 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Environmental Chemical Engineering |
Abstract
Titanium- and iron-containing MCM-22 zeolites were synthesized by a one-pot method and modified by acid treatment to enhance catalytic properties. The samples were characterized for structure (XRD, Raman, NMR), morphology (SEM-EDS), texture (N2-sorption), surface acidity (NH3-TPD), metal loading (ICP-OES), surface composition (XPS), species nature (UV-Vis-DRS), and reducibility (H2-TPR). Characterization confirmed successful incorporation of Ti4 + and Fe3+ species and the removal of extra-framework species after acid treatment in Ti-based zeolite. Catalytic tests in diphenyl sulfide oxidation with H2O2 under mild conditions showed that acid-treated Ti-MCM-22 exhibited high activity and selectivity toward diphenyl sulfoxide and sulfone. Fe-MCM-22 catalysts displayed higher selectivity to diphenyl sulfone, particularly for samples with well-dispersed framework Fe3+ species. The study highlights the role of metal speciation and dispersion in determining activity and selectivity, with acid treatment improving Ti dispersion and performance, while reducing Fe activity.
