期刊
POWDER TECHNOLOGY
卷 326, 期 -, 页码 272-280出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.powtec.2017.12.010
关键词
TNT/Fe3O4/TiO2 ternary composites; Dye sensitize; Magnetic reclaim; Visible light photocatalysis
资金
- National Natural Science Foundation of China [21473161, 21271155]
- Zhejiang Provincial Natural Science Foundation of China [LZ178030001]
- Zhejiang Provincial Top Key Academic Discipline of Chemical Engineering and Technology, Science Foundation of Zhejiang Sci-Tech University [1206841-Y]
- Zhejiang SCI-TECH University startup Foundation [13062174-Y]
Protonized titanate nanotubes/Fe3O4/TiO2 ternary composites (denoted as TNT/Fe3O4/TiO2) have been successfully prepared through a hydrothermal method with the tetrabutyltitanate as the precursor. The component of Titanate nanotubes act as the absorbents and endows the photocatalyst high flexibility to wide-range pollutants concentration, and the component of Fe3O4 endows the photocatalysts magnetic properties with easy recovery ability. The visible and UV-Visible light driven photodegradation of Rhodamine B (RhB) over TNT/Fe3O4/TiO2 was systematically investigated. The exposed active {101) facets can be sensitized by RhB and dramatically enhanced the visible light photocatalytic activity of the TiO2. Synergistic effect of the high specific surface area, magnetic reclaim and the strong interaction between the dye and TiO2 make the catalysis exhibit extraordinary photocatalytic performance and promising application. The detailed e(-) and h(+) separation dynamics for visible-light induced catalytic mechanism was discussed. (C) 2017 Published by Elsevier B.V.
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