Nishimura, A.; Hanyu, R.; Mae, H.; Senoue, H.; Hu, E. Heat-Transfer Analysis of the Promotion of the CO2 Reduction Performance of a P4O10/TiO2 Photocatalyst Using a Black Body Material. Catalysts2023, 13, 1477.
Nishimura, A.; Hanyu, R.; Mae, H.; Senoue, H.; Hu, E. Heat-Transfer Analysis of the Promotion of the CO2 Reduction Performance of a P4O10/TiO2 Photocatalyst Using a Black Body Material. Catalysts 2023, 13, 1477.
Nishimura, A.; Hanyu, R.; Mae, H.; Senoue, H.; Hu, E. Heat-Transfer Analysis of the Promotion of the CO2 Reduction Performance of a P4O10/TiO2 Photocatalyst Using a Black Body Material. Catalysts2023, 13, 1477.
Nishimura, A.; Hanyu, R.; Mae, H.; Senoue, H.; Hu, E. Heat-Transfer Analysis of the Promotion of the CO2 Reduction Performance of a P4O10/TiO2 Photocatalyst Using a Black Body Material. Catalysts 2023, 13, 1477.
Abstract
Since the photocatalytic reaction is a surface reaction, enhancing the gas movement around photocatalyst would promote photocatalytic CO2 reduction performance. A new approach to enhance the gas movement around the photocatalyst by the natural thermosiphon movement of gasses around photocatalyst using black body material was proposed and confirmed experimentally, but the heat transfer mechanism on the phenomena was not clarified yet. The purpose of this study is to clarify the heat transfer mechanism of it. This study calculated the temperature of mixed gases of CO2 and NH3 around P4O10/TiO2 photocatalyst by the heat transfer formula. It is revealed that there was no difference between the increase temperature (Tg) from the temperature at the beginning of the CO2 reduction experiment (Tini) and the temperature of mixed gases of CO2 and NH3 measured by thermocouple in the experiment (Te) under the illumination condition with a visible light (VIS) + an infrared light (IR) and IR only. The heat transfer model proposed by this study has predicted Tg well under the illumination condition with VIS + IR and IR only well. On the other hand, it is revealed that the difference between Tg and Te was as large as 10 ℃ under the illumination condition with an ultra violet light (UV) + VIS + IR.
Keywords
heat transfer analysis; P4O10/TiO2 photocatalyst; CO2 reduction with NH3; black body material; infrared ray; mass transfer promotion
Subject
Engineering, Chemical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
