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Titanium dioxide (TiO2) is one of the most studied metal oxide especially in its application for energy and environment areas. TiO2 is well known as a main semiconductor oxide in dye-sensitized solar cell (DSSC) as well as a photocatalyst material for pollutant decomposition. For those applications,...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/13904 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Titanium dioxide (TiO2) is one of the most studied metal oxide especially in its application for energy and environment areas. TiO2 is well known as a main semiconductor oxide in dye-sensitized solar cell (DSSC) as well as a photocatalyst material for pollutant decomposition. For those applications, TiO2 is necesarry to exhibit high surface area. Mesoporous material (2-50 nm in pore size), with its high surface area, homogenous pore distributions, dan ordered pores characteristics, is ideal structure for those TiO2 applications.<p>In this research, nanocrystal mesoporous TiO2 powder was synthesized using sol-gel method, with TiCl4 as a precursor in methanol/ethanol solution. Block copolymer PluronicPE 6200 and Pluronic PE 8100 were used as a pores template to form mesoporous structure. From XRD result, it is shown that 400 degrees C and 450 degrees C calcination temperature resulted in nanocrystal TiO2 with anatase phase for methanol solvent, and bicrystal anatase-rutile phase for ethanol solvent on low relative humidity condition. Based on N2 adsorption characterization (BET method), generally TiO2 samples have high surface area compared to commercialized nano-TiO2 about 80-108 m2/g. From Small-angle Neutron Scattering (SANS) patterns, it is shown that TiO2 samples using block copolymer Pluronic PE 6200 have mesoporous structure which is the pore ordering degree depend on calcination temperature. |
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