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Kinetic Investigation of the Degradation of Environmental Pollutant in the Presence of TiO2 Nanoparticle on Carbon Nanotube

Rashedi, Zahra | 2011

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 44654 (03)
  4. University: Sharif University of Technology
  5. Department: Chemistry
  6. Advisor(s): Gholami, Mohammad Reza; Rahman Setayesh, Shahrbanoo
  7. Abstract:
  8. The present work is based on the, synthesis and investigation of photocatalytic activity of TiO2, TiO2/MWCNT, ZnO and ZnO/MWCNT nanostructures. The nanostructures were prepared using multi-walled carbonnanotubes (MWCNT) as templates.The SEM images of TiO2 and ZnO nanoparticles and TiO2/MWCNT andZnO/MWCNT showed that nanosize TiO2 and ZnO particles homogeneously and densely supported on the surfaces of multiwall carbon nanotubes the photocatalytic activity of the TiO2, TiO2 /MWCNT, ZnO and ZnO/MWCNT was examined by the degradation of Basic Blue 41(BB41) under UV and Vis lights. The optimum conditions for degradation of BB41 on TiO2 where found to be: calcination temperature (450 °C), dye concentration (10ppm), amount of photocatalyst (150ppm), and pH(8).The result also showed that the TiO2/ 5%- MWCNT has a higher rate constant and efficiently for BB41 degradation. The optimum conditions for degradation of BB41 on ZnO where found to be: calcination temperature (450 °C), dye concentration (10ppm), amount of photocatalyst (40ppm), and pH(6.5).The result also showed that the ZnO / 5%- MWCNT has a higher rate constant and efficiently for BB41 degradation
  9. Keywords:
  10. Titanium Dioxide Nanoparticles ; Carbon Nanotubes ; Photocatalytic Degradation ; Zinc Oxide Nanoparticles ; Basic Blue 41 Color ; Environmental Pollutant

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