Bi4Ti3O12/TiO2 heterostructure: Synthesis, characterization and enhanced photocatalytic activity
Source abstract
Abstract
A multicomponent oxide, Bi4Ti3O12/TiO2 heterostructure was successfully synthesized via a two-step synthesis route based on an anodic oxidation procedure and a subsequent hydrothermal technique. X-ray diffraction confirmed that the composition of the as-fabricated sample was a Bi4Ti3O12/TiO2 composite. Scanning and transmission electron microscopy observation reveals that the as-synthesized sample consisted of TiO2 nanotubes decorated with Bi4Ti3O12 nanocubes. The photocatalytic property of Bi4Ti3O12/TiO2 heterostructure was evaluated by decomposing methyl orange as a model organic compound. Compared with the unmodified TiO2 nanotube arrays, Bi4Ti3O12/TiO2 heterostructure exhibits a higher photocatalytic activity in the decomposition of methyl orange under UV light. The prominent photocatalytic activity could be ascribed to the formation of the heterostructure between Bi4Ti3O12 and TiO2 as well as a good dispersity of Bi4Ti3O12 nanocubes, which could effectively separate the photogenerated carriers and reduce the electron–hole recombination.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (35)
Show source-provided references
1. Electrochemical Photolysis of Water at a Semiconductor Electrode10.1038/238037a0 ↗
2. Anatase TiO2 nanocomposites for antimicrobial coatings10.1021/jp0502196 ↗
3. Sol–gel processed TiO2 films for photovoltaic applications10.1023/A:1011273700573 ↗
4. Nanoporous TiO2 thin film based conductometric H2 sensor10.1016/j.tsf.2009.02.151 ↗
5. Use of highly-ordered TiO2 nanotube arrays in dye-sensitized solar cells10.1021/nl052099j ↗
6. Application of highly ordered TiO2 Nanotube arrays in flexible dye-sensitized solar cells10.1021/nn800174y ↗
7. A hydrogen gas sensor employing vertically aligned TiO2 nanotube arrays prepared by template-assisted method10.1016/j.snb.2011.08.001 ↗
8. Dye-sensitized solar cells based on oriented TiO2 nanotube arrays: transport, trapping, and transfer of electrons10.1021/ja804852z ↗
9. Enhanced charge-collection efficiencies and light scattering in dye-sensitized solar cells using oriented TiO2 nanotubes arrays10.1021/nl062000o ↗
10. Photosensitization of TiO2 nanostructures with CdS quantum dots: particulate versus tubular support architectures10.1002/adfm.200801173 ↗
11. Coaxial heterogeneous structure of TiO2 nanotube arrays with CdS as a superthin coating synthesized via modified electrochemical atomic layer deposition10.1021/ja1025112 ↗
12. Fe+3-doped TiO2: A combined experimental and computational approach to the evaluation of visible light activity10.1016/j.apcatb.2010.05.013 ↗
13. Supercritical preparation of a highly active S-doped TiO2 photocatalyst for methylene blue mineralization10.1021/es062680x ↗
14. Characterization and photocatalytic activity of Au/TiO2 thin films for azo-dye degradation10.1016/S0021-9517(03)00241-0 ↗
15. Mesoporous Au/TiO2 nanocomposites with enhanced photocatalytic activity10.1021/ja069113u ↗
16. Ultrasound aided photochemical synthesis of Ag loaded TiO2 nanotube arrays to enhance photocatalytic activity10.1016/j.jhazmat.2009.06.115 ↗
17. Fabrication of dye-sensitized solar cells by transplanting highly ordered TiO2 nanotube arrays10.1016/j.solmat.2010.02.017 ↗
18. Hagfeldt · Dye-Sensitized Solar Cells, Chemical Reviews · 2010 · 110 · 6595
19. Expanding the photoresponse range of TiO2 nanotube arrays by CdS/CdSe/ZnS quantum dots co-modification10.1016/j.jphotochem.2011.09.002 ↗
20. UV–vis versus visible degradation of acid orange II in a coupled CdS/TiO2 semiconductors suspension10.1016/j.jphotochem.2006.03.025 ↗
21. Hydrothermal synthesis of Bi12TiO20 nanostrucutures using anodized TiO2 nanotubes and its application in photovoltaics10.1021/jz100404v ↗
22. Chromium-doped bismuth titanate nanosheets as enhanced visible-light photocatalysts with a high percentage of reactive {110} facets10.1039/c0jm04374e ↗
23. Mesoporous bismuth titanate with visible-light photocatalytic activity10.1039/b808911f ↗
24. Growth and polarization feature studies on rapid thermally processed preferentially c-axis-oriented Bi4Ti3O12 thin films on Si by sol–gel10.1016/j.mseb.2004.03.025 ↗
25. Facile synthesis and visible-light photocatalytic activity of bismuth titanate nanorods10.1007/s11051-011-0545-2 ↗
26. Solution-phase synthesis of single-crystalline Bi12TiO20 nanowires with photocatalytic properties10.1039/b906290d ↗
27. Controlled synthesis of photoluminescent Bi4Ti3O12 nanoparticles from metal-organic polymeric precursor10.1007/s11051-009-9624-z ↗
28. Photocatalytic property of perovskite bismuth titanate10.1016/j.apcatb.2004.04.002 ↗
29. The structure and photoluminescence of Bi4Ti3O12 nanoplates synthesized by hydrothermal method10.1016/j.colsurfa.2007.08.010 ↗
30. Multiple NaNbO3/Nb2O5 heterostructure nanotubes: a new class of ferroelectric/semiconductor nanomaterials10.1002/adma.200903589 ↗
31. Efficient photocatalytic activity of PZT/TiO2 heterojunction under visible light irradiation10.1021/jp902330w ↗
32. An excellent room-temperature hydrogen sensor based on titania nanotube-arrays10.1016/j.ijhydene.2012.06.067 ↗
33. Effects of hydrothermal temperature and time on the photocatalytic activity and microstructures of bimodal mesoporous TiO2 powders10.1016/j.apcatb.2006.06.022 ↗
34. UV–visible-light-activated photocatalysts based on Bi2O3/Bi4Ti3O12/TiO2 double-heterostructured TiO2 nanobelts10.1039/c2jm34580c ↗
35. Heterogeneous photocatalytic treatment of organic dyes in air and aqueous media10.1016/j.jphotochemrev.2008.09.001 ↗