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Formation of Titania-Silica Mixed Oxides in Solvent Mixtures and Their Influences for the Photocatalytic CO2 Conversion to Hydrocarbon

Title
Formation of Titania-Silica Mixed Oxides in Solvent Mixtures and Their Influences for the Photocatalytic CO2 Conversion to Hydrocarbon
Authors
Parayil, SK[Parayil, Sreenivasan Koliyat]Razzaq, A[Razzaq, Abdul]In, SI[In, Su-Il]
DGIST Authors
Parayil, SK[Parayil, Sreenivasan Koliyat]; Razzaq, A[Razzaq, Abdul]; In, SI[In, Su-Il]
Issue Date
2015-09
Citation
Journal of Nanoscience and Nanotechnology, 15(9), 7285-7292
Type
Article
Article Type
Article
Keywords
Aromatic CompoundsBenzeneCarbon DioxideCrystallinitiesCrystallinity CO2EthanolExperimental TechniquesHexaneMethaneMixed OxideMixturesNon-Polar Organic SolventsNon-Polar SolventNon-Polar SolventsOrganic SolventsPhoto-ReductionPhotocatalyst MaterialsPhotocatalystsSol-Gel ProcessSolventsTiO2-SiO2 Mixed OxidesTitania-Silica Mixed OxideTitanium Dioxide
ISSN
1533-4880
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. Copyright © 2015 American Scientific Publishers All rights reserved.
URI
http://hdl.handle.net/20.500.11750/1564
DOI
10.1166/jnn.2015.10569
Publisher
American Scientific Publishers
Related Researcher
  • Author In, Su Il Green and Renewable Energy for Endless Nature(GREEN) Lab
  • Research Interests CO2 conversion to hydrocarbon fuels; Water splitting for hydrogen generation; Quantum dot devices; Dye sensitized solar cells; Environmental remediation; Synthesis of functional nanomaterials; CO2 연료전환; 수소생산을 위한 광전기화학적 물분해; 양자점 태양전지; 염료감응 태양전지; 공해물질 저감연구; 기능성 나노소재 개발
Files:
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Collection:
Energy Systems EngineeringGreen and Renewable Energy for Endless Nature(GREEN) Lab1. Journal Articles


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