Loading...

Copper oxide-carbon nanotube (CuO/CNT) nanocomposite: Synthesis and photocatalytic dye degradation from colored textile wastewater

Mohammad Mahmoodi, N ; Sharif University of Technology | 2016

1144 Viewed
  1. Type of Document: Article
  2. DOI: 10.1007/s12221-016-6645-y
  3. Publisher: Korean Fiber Society , 2016
  4. Abstract:
  5. In this paper, CuO/CNT nanocomposite was synthesized and its photocatalytic dye degradation ability for colored textile wastewater was studied. The characteristics of the nanocomposite were investigated by XRD, SEM and FTIR. The photodegradation of Direct Red 31 (DR31) and Reactive Red 120 (RR120) by CuO/CNT in presence of H2O2 was investigated. Photocatalytic dye degradation was determined by UV-vis spectrophotometer. Effects of catalyst dosage, initial dye concentration and salt on photodegradation performance were studied. The photocatalytic dye degradation ability of pure CuO and CuO/CNT nanocomposite is 78 % and 89 % for DR31 and 70 % and 87 % for RR120, respectively. The results showed that CNT increased the photocatalytic activity of CuO. The presence of salt decreases dye degradation efficiency. The dye degradation kinetics by nanocomposite followed first-order kinetic model. The reaction rate at 0.005 g catalyst was 0.0137 and 0.0105 min-1 for DR31 and RR120, respectively. It was found that the CuO/CNT nanocomposite as a photocatalyst could be used to degrade dyes from colored wastewater
  6. Keywords:
  7. Copper oxide-carbon nanotube nanocomposite ; Photocatalytic dye degradation ; Synthesis ; Catalysts ; Copper ; Copper oxides ; Degradation ; Nanocomposites ; Nanotubes ; Photocatalysts ; Synthesis (chemical) ; Textiles ; Yarn ; Colored textile wastewater ; Copper oxide carbons ; First-order kinetic models ; Initial dye concentration ; Photocatalytic activities ; Photocatalytic dye degradations ; Reactive red 120 ; UV-Vis spectrophotometers ; Carbon nanotubes
  8. Source: Fibers and Polymers ; Volume 17, Issue 11 , 2016 , Pages 1842-1848 ; 12299197 (ISSN)
  9. URL: https://link.springer.com/article/10.1007%2Fs12221-016-6645-y