Immobilization of cobalt doped rutile TiO2 on carbon nanotubes walls for efficient photodegradation of 2,4-dichlorophenol under visible light

• DOI: 10.31224/osf.io/cq9s3
• Publication Date: 2019-04-08T04:26:01Z
• Authors: Pejman Monazzam; azadeh ebrahimian...; Behnam Fakhari Ki...; Ziba Khodaee
• Keywords: Rutile; Photodegradation; Visible spectrum

In this work, we focused on improvement of rutile-type TiO2 degradation efficiency by cobalt doping and decorating carbon nanotubes walls (CNTs) (Co-TiO2/CNTs). X-ray diffraction (XRD), energy dispersive spectroscopy (EDX), field emission scanning electron microscopy (FESEM), diffuse reflectance (DRS), nitrogen physisorption were used to characterize the prepared samples. The XRD results indicated after doping, obtained rutile phase as major for containing band gap synthesized samples calculated Kubelka-Munk equation using spectra. surface area was BET model average pore diameter volume extracted from desorption branch BJH model. effectiveness examined through 2,4-dichlorophenol (2,4-DCP) a organic pollutants under visible light. We achieved 27% 50% light 2,4-DCP in presence pure Co-TiO2/CNTs 180 min irradiation, respectively. high activity sample can be approved that CNTs reduce sensitize mechanism photocatalyst is proposed.