Skip to main content
Log in

Synthesis, structural characterization, and photocatalytic properties of iron-doped TiO2 aerogels

  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

Fe(III)-doped TiO2 aerogels are prepared by acid catalyzed sol–gel method followed by supercritical drying, and then heat treatment. Raman spectra together with X-ray diffraction (XRD) and selected area electron diffraction (SAED) patterns of the iron-doped TiO2 aerogel samples revealed the existence of both anatase and brookite crystalline phases. It was found that the brookite phase formation is favored by the increase of the iron content in the dried samples. XRD measurements show that the lattice constant c of anatase phase decreases with the dopant addition, while the value of a remains essentially unchanged. The microstructure of the investigated samples is relatively compact with small mesopores as revealed from transmission electron microscopy (TEM). The most enhanced photocatalytic activity was exhibited by the TiO2 aerogel sample with 1.8 at.% Fe(III) whose apparent rate constant of the salicylic acid photodegradation was found to be of almost six times higher than that of Degussa P25.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

  1. Bahnemann D, Cunningham J, Fox MA, Pelizzetti E, Serpone N (1994) In: Helz GR, Zepp RG, Crosby DG (eds) Aquatic and surface photochemistry. Lewis Publisher, Boca Raton, FL

  2. Ollis DF, Al-Ekabi H (1993) Photocatalytic purification and treatment of water and air. Elsevier, Amsterdam

    Google Scholar 

  3. Hoffmann MR, Martin ST, Choi W, Bahnemann DW (1995) Chem Rev 95:69

    Article  CAS  Google Scholar 

  4. Pichat P (1994) Catal Today 19:313

    Article  CAS  Google Scholar 

  5. Wang C-Y, Liu C-Y, Shen T (1997) J Photochem Photobiol A 109:65

    Article  CAS  Google Scholar 

  6. Wang C-Y, Liu C-Y (2002) In: Hubbard A, Barbara S (eds) Encyclopedia of surface and colloid science. Marcel Dekker, NY, p 4926

    Google Scholar 

  7. Wang C-Y, Liu C-Y, Zheng X, Chen J, Shen T (1998) Colloids Surf A 131(1–3):271

    Article  CAS  Google Scholar 

  8. Wang C-Y, Liu C-Y, Chen J, Shen T (1997) J Colloid Interf Sci 191:464

    Article  CAS  Google Scholar 

  9. Cao Y, Zhang X, Yang W, Du H, Bai Y, Li T, Yao J (2000) Chem Mater 12:3445

    Article  CAS  Google Scholar 

  10. Tada H, Hattori A, Tokihisa Y, Imai K, Tohge N, Ito S (2000) J Phys Chem B 104:4585

    Article  CAS  Google Scholar 

  11. Wang C-Y, Bahnemann D, Dohrmann JK (2000) Chem Commun 1539

  12. Wang JA, Limas-Ballesteros R, Lopez T, Moreno A, Gomez R, Novaro O, Bokhimi X (2001) J Phys Chem B 105:9692

    Article  CAS  Google Scholar 

  13. Barau (Szatvanyi) A, Crisan M, Gartner M, Danciu V, Cosoveanu V, Marian I, Anastasescu M, Zaharescu M (2005) Mat Sci Forum 492–493:311

    Article  Google Scholar 

  14. Barau (Szatvanyi) A, Crisan M, Gartner M, Jitianu A, Zaharescu M, Ghita A, Danciu V, Cosoveanu V, Marian I (2006) J Sol-Gel Sci Tech 37:175

    Article  Google Scholar 

  15. Kelly S, Pollak FH, Tomkiewicz M (1997) J Phys Chem B 101:273

    Google Scholar 

  16. Zhu Z, Lin M, Dagan G, Tomkiewicz M (1995) J Phys Chem 99:15953

    Google Scholar 

  17. Peter A, Danciu V, Cosoveanu V, Moldovan Z, Indrea E, Nutiu G, Baia L, Rosu I (2005) In: Proceedings of innovations in the field of water supply sanitation and water quality management, p 103

  18. Wang C-Y, Bottcher C, Bahnemann DW, Dohrmann JK (2003) J Mat Chem 13:2322

    Article  CAS  Google Scholar 

  19. Baia L, Baia M, Peter A, Cosoveanu V, Danciu V (2007) J Optoelectr Adv Mater 9(3):668

    CAS  Google Scholar 

  20. Ryu J, Choi W (2008) Environ Sci Technol 42:294–300

    Article  CAS  Google Scholar 

  21. Ohsaka T, Izumi F, Fujiki Y (1978) J Raman Spectrosc 7:321

    Article  Google Scholar 

  22. Adan C, Bahamonde A, Fernandez-Garcia M, Martinez-Arias A (2007) Appl Catal B Environ 72:11–17

    Article  CAS  Google Scholar 

  23. Zhang YH, Chan CK, Porter JF, Guo W (1998) J Mater Res 13:2602

    Article  CAS  Google Scholar 

  24. Busca G, Ramis G, Amores JMG, Escribano VS, Piaggio P (1994) J Chem Soc Faraday Trans 90:3181

    Article  CAS  Google Scholar 

  25. Gotic M, Ivanda M, Sekulic A, Music S, Popovic S, Turkovic A, Furic K (1996) Mater Lett 28:225

    Article  CAS  Google Scholar 

  26. Tompsett GA, Bowmaker GA, Cooney BP, Metson JB, Rodgers KA, Seakins JM (1995) J Raman Spectrosc 26:57

    Article  CAS  Google Scholar 

  27. Kelly S, Pollak FH, Tomkiewicz M (1997) J Phys Chem B 101:2730

    Article  CAS  Google Scholar 

  28. Baia L, Peter A, Cosoveanu V, Indrea E, Baia M, Popp J, Danciu V (2006) Thin Solid Films 511–512:512

    Article  Google Scholar 

  29. Choi HC, Jung YM, Kim SB (2005) Vibrat Spectrosc 37:33

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to L. Baia.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Popa, M., Diamandescu, L., Vasiliu, F. et al. Synthesis, structural characterization, and photocatalytic properties of iron-doped TiO2 aerogels. J Mater Sci 44, 358–364 (2009). https://doi.org/10.1007/s10853-008-3147-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10853-008-3147-3

Keywords

Navigation