Impact of Black Body Material Enhanced Gas Movement on CO<sub>2</sub> Photocatalytic Reduction Performance
Gas movement around and/or through the photocatalyst is thought to be an inhibition factor to promote photocatalytic CO<sub>2</sub> reduction performance. In this study, a hypothesis is put forward that the natural thermosiphon movement of gases around the photocatalyst can be improved b...
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MDPI AG
2022-04-01
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| Online Access: | https://www.mdpi.com/2073-4344/12/5/470 |
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| author | Akira Nishimura Takaharu Kato Homare Mae Eric Hu |
| author_facet | Akira Nishimura Takaharu Kato Homare Mae Eric Hu |
| author_sort | Akira Nishimura |
| collection | DOAJ |
| description | Gas movement around and/or through the photocatalyst is thought to be an inhibition factor to promote photocatalytic CO<sub>2</sub> reduction performance. In this study, a hypothesis is put forward that the natural thermosiphon movement of gases around the photocatalyst can be improved by using black body material/surface. The black body material/surface that is placed underneath the photocatalyst in the reactor would be heated by absorbing light and then this heats up the gases to promote their movement around/through the photocatalyst. The aim of this study is to prove or disprove this hypothesis by conducting CO<sub>2</sub> reduction performance of a TiO<sub>2</sub> photocatalyst with NH<sub>3</sub> under the conditions without black body material (W/O B.B.), with one black body material (W B.B.-1), and with three black body materials (W B.B.-3). The impact of molar ratio of CO<sub>2</sub>/NH<sub>3</sub> on CO<sub>2</sub> reduction performance is also investigated. This study revealed/proved that the hypothesis worked and that the CO<sub>2</sub> reduction performance is promoted more with W B.B.-3 compared to that with W B.B.-1. The maximum concentration of formed CO with W B.B.-3 is two to five times as large as that under the condition W/O B.B. |
| first_indexed | 2024-03-10T03:11:54Z |
| format | Article |
| id | doaj.art-bd3d620ec420471891b569bc0d2b57a3 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T03:11:54Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-bd3d620ec420471891b569bc0d2b57a32023-11-23T10:25:19ZengMDPI AGCatalysts2073-43442022-04-0112547010.3390/catal12050470Impact of Black Body Material Enhanced Gas Movement on CO<sub>2</sub> Photocatalytic Reduction PerformanceAkira Nishimura0Takaharu Kato1Homare Mae2Eric Hu3Division of Mechanical Engineering, Graduate School of Engineering, Mie University, 1577 Kurimamachiya-cho, Mie 514-8507, JapanDivision of Mechanical Engineering, Graduate School of Engineering, Mie University, 1577 Kurimamachiya-cho, Mie 514-8507, JapanDivision of Mechanical Engineering, Graduate School of Engineering, Mie University, 1577 Kurimamachiya-cho, Mie 514-8507, JapanSchool of Mechanical Engineering, The University of Adelaide, Adelaide 5005, AustraliaGas movement around and/or through the photocatalyst is thought to be an inhibition factor to promote photocatalytic CO<sub>2</sub> reduction performance. In this study, a hypothesis is put forward that the natural thermosiphon movement of gases around the photocatalyst can be improved by using black body material/surface. The black body material/surface that is placed underneath the photocatalyst in the reactor would be heated by absorbing light and then this heats up the gases to promote their movement around/through the photocatalyst. The aim of this study is to prove or disprove this hypothesis by conducting CO<sub>2</sub> reduction performance of a TiO<sub>2</sub> photocatalyst with NH<sub>3</sub> under the conditions without black body material (W/O B.B.), with one black body material (W B.B.-1), and with three black body materials (W B.B.-3). The impact of molar ratio of CO<sub>2</sub>/NH<sub>3</sub> on CO<sub>2</sub> reduction performance is also investigated. This study revealed/proved that the hypothesis worked and that the CO<sub>2</sub> reduction performance is promoted more with W B.B.-3 compared to that with W B.B.-1. The maximum concentration of formed CO with W B.B.-3 is two to five times as large as that under the condition W/O B.B.https://www.mdpi.com/2073-4344/12/5/470TiO<sub>2</sub> photocatalystCO<sub>2</sub> reductionblack body materialinfrared raymass transfer promotion |
| spellingShingle | Akira Nishimura Takaharu Kato Homare Mae Eric Hu Impact of Black Body Material Enhanced Gas Movement on CO<sub>2</sub> Photocatalytic Reduction Performance Catalysts TiO<sub>2</sub> photocatalyst CO<sub>2</sub> reduction black body material infrared ray mass transfer promotion |
| title | Impact of Black Body Material Enhanced Gas Movement on CO<sub>2</sub> Photocatalytic Reduction Performance |
| title_full | Impact of Black Body Material Enhanced Gas Movement on CO<sub>2</sub> Photocatalytic Reduction Performance |
| title_fullStr | Impact of Black Body Material Enhanced Gas Movement on CO<sub>2</sub> Photocatalytic Reduction Performance |
| title_full_unstemmed | Impact of Black Body Material Enhanced Gas Movement on CO<sub>2</sub> Photocatalytic Reduction Performance |
| title_short | Impact of Black Body Material Enhanced Gas Movement on CO<sub>2</sub> Photocatalytic Reduction Performance |
| title_sort | impact of black body material enhanced gas movement on co sub 2 sub photocatalytic reduction performance |
| topic | TiO<sub>2</sub> photocatalyst CO<sub>2</sub> reduction black body material infrared ray mass transfer promotion |
| url | https://www.mdpi.com/2073-4344/12/5/470 |
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