Fabrication of In2O3/TiO2 nanotube arrays hybrids with homogeneously developed nanostructure for photocatalytic degradation of Rhodamine B
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006 (China)
- Shunde Dowell Technological & Environmental Engineering Co., Ltd., Shunde 528300 (China)
Highlights: • A new class of plate-like In{sub 2}O{sub 3}/TNAs photocatalyst is successfully fabricated. • The obtained In{sub 2}O{sub 3}/TNAs hybrid presents a well-aligned nanotubular structure. • In{sub 2}O{sub 3} particles are dispersed homogeneously on TNAs without blocking the nozzles. • In{sub 2}O{sub 3}/TNAs hybrid shows a much enhanced Rhodamine B degradation efficiency. • In{sub 2}O{sub 3}/TNAs hybrid demonstrates an excellent recycling capability. - Abstract: To enhance the photocatalytic recycling capability of the TiO{sub 2}-based photocatalysts, a new kind of plate-like In{sub 2}O{sub 3}/TiO{sub 2} nanotube array (TNA) hybrids is fabricated herein by constructing TNAs via an anodization method followed by doping In{sub 2}O{sub 3} via a solvothermal method. The obtained In{sub 2}O{sub 3}/TNA hybrid demonstrates a well-aligned nanotubular structure with homogeneous dispersion of In{sub 2}O{sub 3} nanoparticles. It shows a much higher degradation rate of 77% after 2 h compared to TNA (37%). In addition, the plate-like feature endows the photocatalysts with an excellent recycling capability. These superior photocatalytic degradation performances can be ascribed to the following factors: (1) the enhanced light absorption ability and efficient separation of photoexcited electron-hole pairs derived from the formation of the heterostructure between the interface of TiO{sub 2} and In{sub 2}O{sub 3}; (2) the efficient transport of reactant molecules provided by the well-defined TNAs and the homogeneous distribution of the In{sub 2}O{sub 3} nanoparticles without blocking the nanotubes.
- OSTI ID:
- 22805212
- Journal Information:
- Materials Research Bulletin, Vol. 106; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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