Correction to: Cu/N-codoped TiO prepared by the sol-gel method for phenanthrene removal under visible light irradiation.

The article "Cu/N-codoped TiO prepared by the sol-gel method for phenanthrene removal under visible light irradiation," written by Zhenhua Zhao, Abduelrahman Adam Omer, Zhirui Qin, Salaheldein Osman, Liling Xia, and Rajendra Prasad Singh.

Cu/N-codoped TiO prepared by the sol-gel method for phenanthrene removal under visible light irradiation.

Cu/N-codoped TiO nanoparticles were prepared by the modified sol-gel method, to study its efficiency for the removing of polyaromatic hydrocarbon (phenanthrene) from an aqueous solution. Urea and copper sulfate pentahydrate were used as sources of doping element for Cu/N-codoped TiO, respectively. The characterizations of the nanoparticles were done by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and UV-vis diffuse reflectance spectra.