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|
| Type |
Poster Presentation |
| Area |
Environmental Energy |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
ENVR.P-662 |
| Subject |
The Influences of Titania-Silica Mixed Oxides on the Photocatalytic CO2 Conversion to CH4 |
| Authors |
Jaewoong Lee, SU IL IN1,*
Daegu Gyeongbuk Institute of Science & Technology, Korea
1Department of Energy Systems Engineering, Daegu Gyeongbuk Institute of Science & Technology, Korea
|
| Abstract |
TiO2-SiO2 mixed oxide photocatalyst materials responsive to simulated solar light illumination have been synthesized by sol-gel method in various polar and nonpolar organic solvent mixtures. The photocatalysts were characterized by numerous experimental techniques and investigated for the photocatalytic conversion of CO2 to CH4. The TiO2-SiO2 mixed oxide photocatalysts prepared in the presence of nonpolar aromatic solvents such as xylene, toluene or benzene along with ethanol show high surface area, huge mesoporosity and enormous pore volume compared to the materials conventionally synthesized in a mixture of ethanol and hexane. The TiO2-SiO2 mixed oxide photocatalyst prepared in benzene along with ethanol yields 21.0 ppm g-1 h-1 of methane production; however the material synthesized in hexane shows negligible amount of methane production under simulated solar light irradiation. These results indicate that aromatic nonpolar solvents can tune the textural properties of photocatalysts compared to non-polar aliphatic solvents. |
| E-mail |
ljw7696@gmail.com |
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121st General Meeting of the KCS