• Yadav, Shri Ram
• Sangal, Vikas Kumar
• Rani, Sonam
• Neogy, Ananya
• Garg, Neha
• Singh, Ashutosh
• Sharma, Shilpa
• Singhania, Tejasvi

Abstract

<jats:title>Abstract</jats:title><jats:p>Advanced oxidation processes (AOPs) including heterogeneous photocatalysis has proven as one of the best technique for waste-water treatment. Photocatalytic process using semiconductor like TiO<jats:sub>2</jats:sub> based heterogeneous photocatalysis is a promising method for the treatment of toxic pollutants. In the present study, visible-light photoactive cobalt and nitrogen co-doped TiO<jats:sub>2</jats:sub> nanoparticles were synthesized via wet impregnation method. The photocatalysts were characterized using X-ray diffraction (XRD), Raman Spectra, Fourier Transform Infrared (FTIR) Spectroscopy, Scanning Electron Microscopy (SEM), Transmission Electron Microscope (TEM), UV-vis spectrophotometer and X-ray photoelectron spectrophotometer (XPS). The photocatalytic activitiy of prepared (N, Co)-codoped TiO<jats:sub>2</jats:sub> on the mineralization of Bisphenol-A (BPA) under visible light irradiation was studied and the results were compared to commercial TiO<jats:sub>2</jats:sub> (Degussa P25). The results demonstrated that 1.5% Co and 0.5% N – codoped TiO<jats:sub>2</jats:sub> samples revealed higher activity than commercial TiO<jats:sub>2</jats:sub>. Total organic carbon (TOC) removal was observed to be 97%, which indicate the complete mineralization of BPA. GC-MS analysis was carried to find out the possible intermediates formed and reaction pathway.</jats:p>

Topics

• nanoparticle
• impedance spectroscopy
• Carbon
• scanning electron microscopy
• x-ray diffraction
• x-ray photoelectron spectroscopy
• semiconductor
• Nitrogen
• transmission electron microscopy
• cobalt
• gas chromatography
• gas chromatography-mass spectrometry