AI Article Synopsis
- Advanced oxidation processes, particularly heterogeneous photocatalysis using TiO-based catalysts, are effective for wastewater treatment, especially for toxic pollutants.
- Research involved creating visible-light active cobalt and nitrogen co-doped TiO nanoparticles through a wet impregnation method and characterizing them with various methods like XRD and SEM.
- The study found that the (N, Co)-codoped TiO exhibited superior photocatalytic activity for mineralizing Bisphenol-A under visible light, achieving 97% total organic carbon removal and suggesting a complete breakdown of the contaminant.
Article Abstract
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 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 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 on the mineralization of Bisphenol-A (BPA) under visible light irradiation was studied and the results were compared to commercial TiO (Degussa P25). The results demonstrated that 1.5% Co and 0.5% N - codoped TiO samples revealed higher activity than commercial TiO. 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.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6346092 | PMC |
| http://dx.doi.org/10.1038/s41598-018-38358-w | DOI Listing |
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