Startseite Enhanced photocatalytic activity of beryllium doped titania in visible light on the degradation of methyl orange dye
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Enhanced photocatalytic activity of beryllium doped titania in visible light on the degradation of methyl orange dye

  • Balaram Kiran Avasarala , Siva Rao Tirukkovalluri und Sreedhar Bojja
Veröffentlicht/Copyright: 11. Juni 2013
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 101 Heft 12

Abstract

The present work is focused on the synthesis of beryllium doped titania (Be+2–TiO2) at different percentages (0.25, 0.5, 0.75 and 1.0 wt.%) by the sol-gel method and its characterization using X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform-Infra red and Ultra violet-visible absorption spectroscopic methods. Diffraction peaks of anatase crystalline phase were present in both synthesized TiO2 and Be+2–TiO2. The presence of Be+2 ion in the TiO2 structure caused a significant absorption shift towards the visible region and its presence was confirmed by X-ray photoelectron spectroscopy and Fourier Transform-Infra Red data. The photocatalytic efficiency of the synthesized Be+2–TiO2 and pure TiO2 was evaluated by the degradation of aqueous methyl orange dye under visible light irradiation, where the degradation rate of methyl orange by Be+2–TiO2 was found to be higher than by pure TiO2. This can be attributed to more efficient electron–hole creation in Be+2–TiO2 in visible light and the electrons produced due to photosensitization of the dye can be scavenged by photoexcited doped TiO2 in visible light.

Keywords: Titanium dioxide; Doping; Sol-gel method; Beryllium; Photocatalysis
* Correspondence address, T. Siva Rao, Department of Inorganic and Analytical Chemistry, School of Chemistry, Andhra University, Visakhapatnam, India-530003, Asia. Tel.: +91 891 284 4667, Mobile: +91 77 0211 0459. E-mail:

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Received: 2009-11-21
Accepted: 2010-10-4
Published Online: 2013-06-11
Published in Print: 2010-12-01

© 2010, Carl Hanser Verlag, München

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  9. Experimental investigation of the Zn–Fe–V system at 450°C
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https://doi.org/10.3139/146.110438
Schlagwörter für diesen Artikel
Titanium dioxide; Doping; Sol-gel method; Beryllium; Photocatalysis

Artikel in diesem Heft

  1. Basic
  2. High-temperature in-situ microscopy during stress-induced phase transformations in Co49Ni21Ga30 shape memory alloy single crystals
  3. Contents
  4. contents
  5. Editorial
  6. Editorial December 2010
  7. Basic
  8. Atomic mobilities and diffusivities in the fcc, L12 and B2 phases of the Ni-Al system
  9. Experimental investigation of the Zn–Fe–V system at 450°C
  10. Time resolved X-ray imaging of eutectic cellular patterns evolving during solidification of ternary Al–Cu–Ag alloys
  11. Reassessment of the Mg–Ge binary system using CALPHAD supported by first-principles calculation
  12. A quantitative modeling of the unloading behavior of metals during a tensile test
  13. A technique for diameter enlargement in SiC crystal growth
  14. Applied
  15. Thermal and chemical stability of Cr2AlC in contact with α-Al2O3 and NiAl
  16. Microstructure and mechanical properties of Zn25Al3Cu based composites with large Al2O3 particles at room and elevated temperatures
  17. An investigation on Incoloy800-SS304 clad plate by explosive welding
  18. Effect of grain boundary precipitates on vibration damping of FeüCrüMgüAl/Si alloy
  19. Adsorption of metal ions on magnetic carbon nanomaterials bearing chitosan-functionalized silica
  20. Tensile and in-vitro degradation study of electro spun fibrous mat produced from eri silk fibroin
  21. Study of the influence of UV-irradiation on the photodegradation of plasticized poly(para-tert-butylstyrene) films
  22. Enhanced photocatalytic activity of beryllium doped titania in visible light on the degradation of methyl orange dye
  23. Progress in chemistry modelling for vapour and aerosol transport analyses
  24. DGM News
  25. Personal
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