INFLUENCE OF Nb2O5 AND B2O3 ON THE PHOTOCATALYTIC AND ANTIBACTERIAL ACTIVITY OF SOL-GEL DERIVED TiO2 NANOPОWDERS

Authors

  • Albena Bachvarova-Nedelcheva Institute of General and Inorganic Chemistry Bulgarian Academy of Sciences
  • Reni Iordanova Institute of General and Inorganic Chemistry Bulgarian Academy of Sciences
  • Nelly Georgieva Department of Biotechnology, University of Chemical Technology and Metallurgy
  • Veronica Nemska Department of Biotechnology, University of Chemical Technology and Metallurgy
  • Tsvetelina Foteva Department of Biotechnology, University of Chemical Technology and Metallurgy
  • Angelina Stoyanova Department of Chemistry and Biochemistry Faculty of Pharmacy, Medical University-Pleven

DOI:

https://doi.org/10.59957/jctm.v59.i2.2024.12

Keywords:

sol-gel, powders, antibacterial properties, photocatalytic properties.

Abstract

TiO2 based powders containing B2O3 and Nb2O5 were obtained through an aqueous sol-gel method. The as prepared gels were step wisely heated in the temperature range 200°C - 500°C and subsequently characterized by XRD, IR and UV-Vis analysis. The TiO2 (anatase) is the single crystalline phase which has been detected up to 500°C. Photocatalytic tests showed that the investigated samples possess photocatalytic activity toward Malachite green organic dye and TiO2/Nb2O5 exhibited higher photocatalytic activity than TiO2/B2O3 sample. The compositions exhibited good antimicrobial activity against E. coli NBIMCC K12 407 and Bacillus subtilis NBIMCC 3562.

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Published

2024-01-03

Issue

Vol. 59 No. 2 (2024)

Section

Articles

License

Copyright (c) 2024 Journal of Chemical Technology and Metallurgy

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