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Visible-light-assisted persulfate activation by SnS2/MIL-88B(Fe) Z-scheme heterojunction for enhanced degradation of ibuprofen.
- Source :
-
Journal of Colloid & Interface Science . Nov2022, Vol. 625, p965-977. 13p. - Publication Year :
- 2022
-
Abstract
- [Display omitted] Herein, a highly efficient Z-scheme SnS 2 /MIL-88B (Fe) (SnSFe) heterojunction was successfully synthesized to use both as photocatalysts and persulfate (PS) activator for ibuprofen (IBP) degradation. Flower-liked SnS 2 was uniformly loaded on MIL-88B (Fe), and SnSFe retained the original polyhedral morphology of MIL-88B (Fe). The highest removal of IBP was achieved in the presence of SnSFe with 0.5% SnS 2 (SnSFe0.5). Characteristic results and density functional theory calculations demonstrated that the enhanced degradation of IBP was due to the difference in Fermi energy levels of SnS 2 and MIL-88B (Fe) leading to electrons transferred from SnS 2 to MIL-88B (Fe), and Sn O bond was formed in SnSFe. , OH and O 2 − were the main active species in SnSFe0.5/PS/visible light system. Z-scheme heterojunction of SnSFe was constructed to propose the degradation mechanism. This research revealed that the synergism of photocatalysis and PS activation using SnS 2 /Fe-based MOFs composites possessed great potentials in wastewater remediation. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HETEROJUNCTIONS
*IBUPROFEN
*FERMI energy
*DENSITY functional theory
*FERMI level
Subjects
Details
- Language :
- English
- ISSN :
- 00219797
- Volume :
- 625
- Database :
- Academic Search Index
- Journal :
- Journal of Colloid & Interface Science
- Publication Type :
- Academic Journal
- Accession number :
- 157992304
- Full Text :
- https://doi.org/10.1016/j.jcis.2022.06.099