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A sandwich-like heterostructure of TiO2 nanosheets with MIL-100(Fe): A platform for efficient visible-light-driven photocatalysis.
- Source :
-
Applied Catalysis B: Environmental . Jul2017, Vol. 209, p506-513. 8p. - Publication Year :
- 2017
-
Abstract
- Hierarchical heterostructures with specific compositions, morphology and functionalities are important for applications in many fields such as catalysis, energy storage and conversion. Herein, hierarchical sandwich-like heterostructures were prepared by a self-assembly method of growing MIL-100(Fe) on host two dimensional (2D) TiO 2 nanosheets (TiO 2 NS). The introduction of porous MIL-100(Fe) on TiO 2 NS improves the adsorption ability of nanocomposites owing to the porous tunnel adsorbing organic molecules and high surface area. In addition, the interfaces of TiO 2 NS and MIL-100(Fe) provide platforms for rapid photoexcited electrons transfer and enhance the photocatalytic activity of TiO 2 NS@MIL-100(Fe) nanocomposites. The resulting sandwich-like TiO 2 NS@MIL-100(Fe) nanocomposites with enhanced adsorption ability and superior separation of photogenerated electron-hole pairs exhibited improved photoactivity toward degradation of methylene blue dye (MB) under visible light ( λ ≥ 420 nm). TiO 2 NS@MIL-100(Fe) nanocomposites offer an useful platform to integrate photocatalytic semiconductor and porous MOFs into hierarchical nanostructures with high surface areas and efficient electrons transfer for enhanced photocatalytic performance. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09263373
- Volume :
- 209
- Database :
- Academic Search Index
- Journal :
- Applied Catalysis B: Environmental
- Publication Type :
- Academic Journal
- Accession number :
- 122578609
- Full Text :
- https://doi.org/10.1016/j.apcatb.2017.02.073