access icon free Preparation, characterisation and enhanced photocatalytic activities of Fe,F co-doped TiO2 nanotubes

© The Institution of Engineering and Technology
Received 25/03/2018, Accepted 24/09/2018, Revised 19/08/2018, Published 16/01/2019

Fe,F co-doped TiO2 nanotubes (Fe,F/TiO2 NTs) were synthesised by the combination of hydrothermal process and impregnation method. The structure and composition of prepared catalysts were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). XRD results confirmed only the presence of the anatase phase in Fe,F/TiO2 NTs. Well-defined TiO2 NTs with nearly uniform diameters could be seen from the TEM images. Also, the high-resolution XPS spectra of Fe 2P and F 1s showed that Fe3+ and F− existed in TiO2 lattice and on the surface of TiO2, respectively. The photocatalytic performances of Fe/TiO2 NTs and Fe,F/TiO2 NTs with different Fe concentrations were evaluated by photo-degrading aqueous methyl orange under visible light irradiation, and the results showed that the photoactivity of Fe and F co-doped TiO2 NTs was enhanced obviously compared with Fe mono-doped TiO2 NTs and the 0.5% Fe,F/TiO2 NTs presented the best photocatalytic performance.

Inspec keywords: visible spectra; nanoparticles; transmission electron microscopy; catalysts; semiconductor growth; semiconductor nanotubes; photochemistry; nanofabrication; scanning electron microscopy; catalysis; titanium compounds; semiconductor materials; iron; ultraviolet spectra; X-ray diffraction; X-ray photoelectron spectra

Other keywords: visible light irradiation; Fe 2P; X-ray diffraction; TiO2 lattice; Fe monodoped TiO2 nanotubes; time 1.0 s; photodegrading aqueous methyl orange; impregnation method.; anatase phase; X-ray photoelectron spectroscopy; F 1s; hydrothermal process; TEM images; enhanced photocatalytic activities; TiO2:Fe,F; TEM; transmission electron microscopy; high-resolution XPS spectra; XRD

Subjects: Low-dimensional structures: growth, structure and nonelectronic properties; Heterogeneous catalysis at surfaces and other surface reactions; Photochemistry and radiation chemistry; Nanometre-scale semiconductor fabrication technology; Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials; Photoelectron spectra of semiconductors and insulators; Visible and ultraviolet spectra of other nonmetals; Electron spectroscopy for chemical analysis (photoelectron, Auger spectroscopy, etc.); Photolysis and photodissociation by IR, UV and visible radiation; Optical properties of other inorganic semiconductors and insulators (thin films, low-dimensional and nanoscale structures); Other methods of nanofabrication; Oxide and ferrite semiconductors

http://iet.metastore.ingenta.com/content/journals/10.1049/mnl.2018.5318
Loading

Related content

content/journals/10.1049/mnl.2018.5318
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading