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Boosted photodegradation of tetracycline hydrochloride over Z-scheme MIL-88B(Fe)/Bi2WO6 composites under visible light.
- Source :
-
Colloids & Surfaces A: Physicochemical & Engineering Aspects . Oct2021, Vol. 627, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- Metal-organic frameworks (MOFs) have attracted great interest in the field of photocatalysis because of their adjustable porous structure and semiconductor properties. In this research, a new type of MIL-88B(Fe)/Bi 2 WO 6 was successfully prepared by growing MIL-88B(Fe) on the surface of flower-like Bi 2 WO 6 spheres. The structures of materials were characterized through XRD, BET, XPS, SEM, TEM, EDX and FT-IR. 7-MIL-88B(Fe)/Bi 2 WO 6 exhibits the highest photocatalytic performance with a degradation rate of 96.4% within 90 min under visible light irradiation. Compared with pure Bi 2 WO 6 or MIL-88B(Fe), 7-MIL-88B(Fe)/Bi 2 WO 6 exhibits the largest specific surface area to provide more active sites. Additionally, the ·O 2 - and ·OH played dominant roles during the photocatalytic degradation process based on trapping and ESR tests. Through cyclic experiments, MIL-88B(Fe)/Bi 2 WO 6 composites show good stability and degradation efficiency, indicating its application potential in the environmental field. [Display omitted] [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09277757
- Volume :
- 627
- Database :
- Academic Search Index
- Journal :
- Colloids & Surfaces A: Physicochemical & Engineering Aspects
- Publication Type :
- Academic Journal
- Accession number :
- 152312723
- Full Text :
- https://doi.org/10.1016/j.colsurfa.2021.127248