Novel nanosized anatase TiO2 hexagonal prism filled with nanoporous structure
Source abstract
Abstract
Abstract In the present work, we demonstrate the synthesis of a novel nanosized TiO2 with the potential photocatalytic applications. Firstly, the hexagonal prisms were synthesized by dealloying TiCu amorphous alloy in HNO3 solution containing F− ions. These hexagonal prisms were composed of (NH4)0.3TiO1.1F2.1 wrapped with anatase TiO2 shell. After calcination at 550 °C, the hexagonal anatase TiO2 prisms filled with nanoporous structure were formed. The as-formed materials were characterized by field emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and UV–visible diffuse reflectance spectra (DRS). The formation procedure and mechanism were discussed. The as-formed hexagonal TiO2 combines the advantages of well-ordered hexagonal prism and nanoporous structure, and then exhibits good photocatalytic properties. The unique nanostructure of hexagonal TiO2 is expected to benefit as an advanced photocatalyst.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Copper-based nanomaterials and applications · Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. Electrochemical photolysis of water at a semiconductor electrode10.1038/238037a0 ↗
2. TiO2 photocatalysis and related surface phenomena10.1016/j.surfrep.2008.10.001 ↗
3. Use of highly-ordered TiO2 nanotube arrays in dye-sensitized solar cells10.1021/nl052099j ↗
4. Construction of TiO2 hierarchical nanostructures from nanocrystals and their photocatalytic properties10.1021/am2006838 ↗
5. Nanowire-structured titanate with anatase titania: characterization and photocatalytic activity10.1016/j.apcatb.2009.01.013 ↗
6. Novel hydrothermal preparation of pure brookite-type titanium(IV) oxide nanocrystal under strong acidic conditions10.1016/j.catcom.2008.12.038 ↗
7. Nanostructuring titania: control over nanocrystal structure, size, shape, and organization10.1002/(SICI)1099-0682(19990202)1999:2<235::AID-EJIC235>3.0.CO;2-N ↗
8. Vertically aligned single crystal TiO2 nanowire arrays grown directly on transparent conducting oxide coated glass: synthesis details and applications10.1021/nl802096a ↗
9. Titanium oxide nanotube arrays prepared by anodic oxidation10.1557/JMR.2001.0457 ↗
10. A thick hierarchical rutile TiO2 nanomaterial with multilayered structure10.1016/j.materresbull.2013.01.049 ↗
11. Effect of SO42− on microstructure, phase and photocatalytic activity of TiO2 nanomaterials prepared from Ti-Cu amorphous alloy
12. Ti oxide nano-porous surface structure prepared by dealloying of Ti-Cu amorphous alloy10.1016/j.elecom.2010.12.025 ↗
13. Hexagonal microrods of anatase tetragonal TiO2: self-directed growth and superior photocatalytic performance10.1039/c3cc42274g ↗
14. High-performance UV photodetectors and temperature-dependent photoluminescence of individual ZnO hexagonal-prism microwire10.1007/s00339-014-8828-y ↗
15. Growth of hexagonal prism ZnO nanorods on Zn substrates by hydrothermal method and their photoluminescence10.1016/j.ceramint.2012.10.122 ↗
16. Tailored synthesis of hierarchical spinous hollow titania hexagonal prisms via a self-template route10.1039/C4NR03746D ↗
17. Preparation and characterization of N-S-codoped TiO2 photocatalyst and its photocatalytic activity10.1016/j.jhazmat.2007.12.018 ↗
18. Effect of sulfate ions on the crystallization and photocatalytic activity of TiO2/diatomite composite photocatalyst10.1016/j.cplett.2015.11.020 ↗
19. Thermal behaviour of ammonium oxofluorotitanates(IV)10.1023/A:1010105024143 ↗
20. Phase-field modeling on morphological landscape of isotactic polystyrene single crystals10.1103/PhysRevE.72.011804 ↗
21. Triple junction drag and grain growth in 2D polycrystals10.1016/S1359-6454(01)00391-3 ↗
22. On the validity of the von Neumann-Mullins relation10.1016/j.scriptamat.2004.05.023 ↗
23. Architectural control of seeded-grown magnetic-semicondutor iron oxide-TiO2 nanorod heterostructures: the role of seeds in topology selection10.1021/ja910322a ↗
24. Nanoporous hexagonal TiO2 superstructure as a multifunctional material for energy conversion and storage10.1039/C4TA05988C ↗
25. Visible-light-driven N-F-codoped TiO2 powders derived from different ammonium oxofluorotitanate precursors10.1016/j.powtec.2011.12.004 ↗
26. Novel nanoporous MnOx (x=~1.75) sorbent for the removal of SO2 and NH3 made from MnC2O4·2H2O10.1016/j.jcis.2015.11.048 ↗
27. Reduction of oxygen vacancy and enhanced efficiency of perovskite solar cell by doping fluorine into TiO210.1016/j.jallcom.2016.04.194 ↗
28. Enhanced photocatalytic activity of N-doped TiO2 nanocrystals with exposed {001} facets10.1016/j.apsusc.2016.07.149 ↗
29. Visible-light photocatalysis in nitrogen-doped titanium oxides10.1126/science.1061051 ↗
30. Photocatalytic transformation of organic compounds in the presence of inorganic anions. 1. Hydroxyl-mediated and direct electron-transfer reactions of phenol on a titanium dioxide-fluoride system10.1021/la9903301 ↗