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Photocatalytic Dye Degradation of Wastewater Using Copper Composite Nanophotocatalyst by Advanced Oxidation Process

Rezaei, Pardis | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 49041 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Ghotbi, Cyrus; Mahmoodi, Niyaz Mohammad; Kazemeyni, Mohammad
  7. Abstract:
  8. Azo dyes that are the most common dyes in textile industries, are toxic and stable complex compounds. Release of this dyes in environment disturb the ecosystem and endanger human health. So selection of an appropriate method for treatment of them is a sensitive work. photocatalytic degradation is one of the best promising methods because of its perfect mineralization, middle condition and lack of creating the secondary pollutant. In this research CuO/CNT nanocomposite was synthesized and used as a photocatalyst. The surface features of CuO/CNT were surveyed by using Fourier transform infrared(FTIR), X-ray diffraction (XRD) and Scanning electron microscopy (SEM). Photocatalytic efficiency of CuO/CNT nanocomposite was investigated by degradation of Direct Red 31 (DR31) and Reactive Red 120 (RR120) dyes in presence of hydrogen peroxide (H2O2) under UV light. The effects of catalyst dosage, initial dye concentration and presence of mineral ions on photodegradation process were surveyed. Mechanism of destruction and rate of photocatalytic reaction were surveyed. The dye degradation kinetics by nanocomposite at different catalyst dosages followed first-order kinetic model. It was found that the CuO/CNT nanocomposite as a photocatalyst could be used to degrade dyes from colored wastewater
  9. Keywords:
  10. Photocatalytic Degradation ; Oxidation ; Azo Dyes ; Textile Effluent ; Colored Textile Wastewater ; Copper Oxide/Carbon Nanotube Nanocomposite ; Photocatalytic Dye Degradation ; Photocatalytic Dye Degradation Kinetics

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