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Lee, I.,Jung, T.,Kim, J.,Ro, S.,Kim, C.,Lee, Y.,Kim, Y.,Lee, J.,Kang, M. Korean Society of Industrial and Engineering Chemi 2008 Journal of industrial and engineering chemistry Vol.14 No.6
This study focuses on the relationship between photo-catalytic performance and optical property over Si-incorporated TiO<SUB>2</SUB>. The Si-incorporated TiO<SUB>2</SUB> particles exhibited a pure structure of anatase having a particle size of less than 20nm and surface area of more than 190m<SUP>2</SUP>/g. The absorbance did not shift to a higher wavelength in spite of the incorporation of the Si ions, but the intensity of the photoluminescence (PL) curve was the smallest in the case of the 2.0mol% Si-TiO<SUB>2</SUB>, which was related to the recombination between the excited electrons and holes. Based on these results, the photodecomposition of methyl orange in the liquid reaction was enhanced over the 2.0mol% Si-incorporated TiO<SUB>2</SUB> compared with that over pure TiO<SUB>2</SUB>: Methyl orange at 10.0ppm was completely decomposed after 100min when 1.0g of the 2.0mol% Si-incorporated TiO<SUB>2</SUB> was used.
The relationship between photo-catalytic performance and optical property over Si-incorporated TiO2
이인준,정태성,김정기,노수호,김철수,이예지,김영미,이주현,강미숙 한국공업화학회 2008 Journal of Industrial and Engineering Chemistry Vol.14 No.6
This study focuses on the relationship between photo-catalytic performance and optical property over Si-incorporated TiO2. The Siincorporated TiO2 particles exhibited a pure structure of anatase having a particle size of less than 20 nm and surface area of more than 190 m2/g. The absorbance did not shift to a higher wavelength in spite of the incorporation of the Si ions, but the intensity of the photoluminescence (PL) curve was the smallest in the case of the 2.0 mol% Si-TiO2, which was related to the recombination between the excited electrons and holes. Based on these results, the photodecomposition of methyl orange in the liquid reaction was enhanced over the 2.0 mol% Si-incorporated TiO2 compared with that over pure TiO2: Methyl orange at 10.0 ppm was completely decomposed after 100 min when 1.0 g of the 2.0 mol% Siincorporated TiO2 was used.