| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 가을 (11/12 ~ 11/14, 엑스코(대구)) |
| 권호 |
18권 2호 |
| 발표분야 |
에너지저장변환-포스터 |
| 제목 |
Formation of Titania-Silica Mixed Oxides in Solvent Mixtures and their Influences for the Photocatalytic CO2 Conversion to Hydrocarbon |
| 초록 |
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 yield 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. |
| 저자 |
Abdul Razzaq, 김현우, 인수일
|
| 소속 |
대구경북과학기술원(DGIST) |
| 키워드 |
TiO2- SiO2; sol gel process; non-polar solvent; crystallinity; photocatalysis; CO2 photoreduction
|
| E-Mail |
|
