Elsalamony RA
The growth of industry worldwide has extremely increased the generation and accumulation of waste by products. This has caused severe environmental problems that have become a major concern. Because of this, photo-catalytic pollutant degradation provided great opportunities and challenges in the field of environmental science. TiO2 nanoparticles have been extensively investigated for photo-catalytic decomposition of organic compounds. TiO2 is considered close to an ideal semiconductor for photo-catalysis but possesses certain limitations such as poor absorption of visible radiation and rapid recombination of photo generated electron/hole pairs. In this review article, various methods used to enhance the photo-catalytic characteristics of TiO2 including self-doping TiO2, doping TiO2 with metal and non-metal. Improving catalytic efficiency and exploring the reaction mechanism of photo-catalytic degradation of dyes as a model organic compound.
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