Exploring the Photocatalytic Potential of TiO2 Nanoparticles: A Comprehensive Review
Lavunipally Vasantha Kumar1, Marimuthu1, Ganesh Kumaran1, Repudi Vijaya Sekhar1*
1Department of Chemistry,
Indian Institute of Industry Interaction Education and Research, Chennai, Tamil Nadu 600066
Abstract - As for the replenishing resource power and pollution removing approach, one of the most potential potentials is the photo-catalytic photo activation of CO2 into solar fuels accompanied by semiconductor photocatalysts. Pursuing efficient photoreduction of CO2 to useful products and the development of new photocatalysts are two challenges humanity must overcome in the twenty-first century. Recently, TNTs have been considered in detail because of their possible application in the chemical industry for photovoltaic conversion of carbon dioxide (CO2) into valuable chemicals. Over a period, the change in increasing rate of CO₂ emissions, researchers are now directing their work into raising the rate of CO₂ photoreduction by tuning the TNTs appropriately. A balance on present findings of synthesis and modification process and capacity of TNTs to produce value added products from CO2 is mandatory to paint its potential usage. From this analysis, the state of the art in current TNT manufacturing technologies, available strategies for modifying the surface of CO2 to enhance TNT photoreduction, and major findings of prior research can be derived to determine the future directions for research and possible challenges. Some of the challenges that need to be addressed in the CO2 to useful products photoreduction process include; the photocatalyst stability, reusability of the TNT photocatalysts, and its visible light performance. Besides, decision-making on the choice of optimal modification procedures is critical. Thus, photocatalytic reactions with TNTs can be improved by overcoming the abovementioned drawbacks and using the present photoreactor model that makes the best of photocatalysts, as well as the partial pressure of the reactants and incident light.
Key Words: Photocatalysts, CO₂ photoreduction, TNTs (Titanium Dioxide Nanotubes), Semiconductor photocatalysts, Solar fuels, Visible light performance
