Low-frequency ultrasound induces oxygen vacancies formation and visible light absorption in TiO2 P-25 nanoparticles

Ultrasonics Sonochemistry

Volumn 19, Issue 3, 2012, Pages 383-386

  Osorio Vargas, Paula A ^a   Pulgarin, Cesar ^a   Sienkiewicz, Andrzej ^a   Pizzio, Luis R ^b   Blanco, Mirta N ^b   Torres Palma, Ricardo A ^c   Pétrier, Christian ^d   Rengifo Herrera, Julián A ^b  

^a EPFL   (Switzerland)

^b DEPARTAMENTO DE QUÍMICA   (Argentina)

^c UNIVERSIDAD DE ANTIOQUIA   (Colombia)

^d Univ Joseph Fourier Grenoble 1   (France)

Author keywords

Low frequency ultrasound; Oxygen vacancies

Indexed keywords

ELECTRON SPIN RESONANCE SPECTROSCOPY; LIGHT; LIGHT ABSORPTION; MAGNETIC MOMENTS; PHOTOCATALYSTS; SHOCK WAVES; SURFACE DEFECTS; TEMPERATURE; TITANIUM DIOXIDE; ULTRASONICS; WATER POLLUTION;

ELECTRON SPIN RESONANCE MEASUREMENTS; EXPERIMENTAL EVIDENCE; INTER-PARTICLE COLLISION; LOW-FREQUENCY ULTRASOUND; TECHNOLOGICAL CONDITIONS; TIO2-BASED PHOTOCATALYSTS; VISIBLE LIGHT ABSORPTION; VISIBLE LIGHT RESPONSIVE;

OXYGEN VACANCIES;

NANOPARTICLE; OXYGEN; TITANIUM DIOXIDE; WATER;

ARTICLE; CATALYST; ILLUMINATION; IRRADIATION; LIGHT; LIGHT ABSORPTION; LOW FREQUENCY ULTRASOUND; PHOTOCATALYSIS; PRIORITY JOURNAL; ULTRASOUND;

EID: 84855287846     PISSN: 13504177     EISSN: 18732828     Source Type: Journal    
DOI: 10.1016/j.ultsonch.2011.11.013     Document Type: Article

References (23)

1. 2 surfaces: principles mechanisms and selected results, Chem. Rev. 95 (1995) 735-758.
2. 2 photocatalysis and related surface phenomena, Surf. Sci. Rep. 68 (2008) 515-582.
3. M.R. Hoffmann, S.T. Martin, W. Choi, D.W. Bahnemann, Environmental applications of semiconductor photocatalysis, Chem. Rev. 95 (1995) 69-96.
4. M. Anpo, S. Dohshi, M. Kitano, Y. Hu, M. Takeuchi, M. Matsuoka, The preparation and characterization of highly efficient titanium oxide-based photo-functional materials, Annu. Rev. Mater. Res. 35 (2005) 1-27. (Pubitemid 41310681)
5. R. Asahi, T. Morikawa, T. Ohwaki, K. Aoki, Y. Taga, Visible-light photocatalysis in nitrogen-doped titanium dioxides, Science 293 (2001) 269-271. (Pubitemid 32694736)
6. 2 photocatalyst under visible illumination, J. Phys. Chem. B 108 (2004) 17269-17273.
7. 2) under visible light, Appl. Catal. B: Environ. 88 (2009) 398-406.
8. 2 photocatalysis, Surf. Sci. Rep. 66 (2011) 185-297.
9. 2(110) using low-density electron beams, Surf. Sci. 320 (2004) 295-306.
10. 2 single crystal controlled by heat treatments, J. Phys. Soc. Jpn. 73 (2004) 703-710.
11. 2 thin films prepared by the radio frequency magnetron sputtering deposition method, J. Phys. Chem. B 110 (2006) 5537-5541.
12. 2 with a bicrystalline framework, Chem. Mater. 14 (2002) 4647-4653.
13. S.Y. Kim, TS. Chang, CH. Shin, Enhancing effects of ultrasound treatment on the preparation of TiO2 photocatalyst, Catal. Lett. 118 (2007) 224-230. (Pubitemid 47501724)
14. D. Yang, SE. Park, JK. Lee, SW. Lee, Sonochemical deposition of nanosized Au on titanium oxides with different surface coverage and their photocatalytic activity, J. Cryst. Growth 311 (2009) 508-511.
15. R.A. Torres, C. Pétrier, E. Combet, F. Moulet, C. Pulgarin, Bisphenol A mineralization by integrated ultrasound-UV-iron (II) treatment, Environ. Sci. Technol. 41 (2007) 297-302. (Pubitemid 46047857)
16. 2: site specific blocking by probe molecules, Chem. Phys. Lett. 477 (2009) 340-344.
17. 2, J. Phys. Chem. C 111 (2007) 10630-10638.
18. 2, J. Phys. Chem. 89 (1985) 4495-4499.
19. R.F. Howe, M. Gratzel, EPR study of hydrated anatase under UV irradiation, J. Phys. Chem. 91 (1987) 3906-3909.
20. K.S. Suslick, G. Price, Applications of ultrasound to materials chemistry, J. Annu. Rev. Mater. Sci. 29 (1999) 295-326.
21. J.H. Bang, K.S. Suslick, Applications of ultrasound to the synthesis of nanostructured materials, Adv. Mater. 22 (2010) 1039-1059.
22. T. Prozorov, R. Prozorov, K.S. Suslick, High velocity interparticle collisions driven by ultrasound, J. Am. Chem. Soc. 126 (2004) 13890-13891. (Pubitemid 39447042)
23. 2 photocatalyst with visible light activity for NO removal, J. Mol. Catal. A: Chem. 161 (2000) 205-212.