Publisher : The Korean Environmental Sciences Society
DOI : 10.5322/JES.2011.20.4.511
Title & Authors
Photocatalytic Decomposition of Methylene Blue over Sm Ion Doped Ti-SBA-15 Catalysts Jung, Won-Young; Lee, Seong-Hun; Hong, Seong-Soo;
Ti-SBA-15 catalysts doped with samarium ion were synthesized using conventional hydrothermal method. The physical properties of Sm/Ti-SBA-15 catalysts have been characterized by XRD, FT-IR, DRS and PL. In addition, we have also examined the activity of these materials on the photocatalytic decomposition of methylene blue. The Sm/ Ti-SBA-15 was shown to have the mesoporous structure regardless of Sm ion doping. With doping amount of 1% lanthanide ion, the pore size and pore volume of Sm(Er, Cs)/Ti-SBA-15 decreased and the surface area increased. For the purpose of vibration characteristics on the Ti-SBA-15 and Sm/Ti-SBA-15 photocatalysts, the IR absorption at 960 commonly accepted the characteristic vibration of Ti-O-Si bond. 1% of Sm/Ti-SBA-15 had the highest photocatalytic activity on the decomposition of methylene blue but the catalysts doped with Er ions had lower activity in comparison with pure Ti-SBA-15 catalyst.
Sm/Ti-SBA-15 catalysts;Photocatalytic decomposition of methylene blue;
암모니아 표면처리 된 질소 도핑 $TiO_2$ 광촉매의 합성 및 광분해반응,김예솔;배병철;이영석;
공업화학, 2012. vol.23. 3, pp.308-312
Alba, M. D., Luan, Z., Klinowski, J., 1996, Titanosilicate Mesoporous Molecular Sieve MCM-41: Synthesis and Characterization, J. Phys. Chem., 100, 2178- 2182.
Boccuti, M., Rao, K. M., Zecchina, A., Leofanti, G., Petrini, G., Morterra, C., Zecchina, A., Costa, G., 1989, Structure and Reactivity of Surfaces, Elsevier, Amsterdam, 33-34.
Jung, W. Y., Lim, K. W., Lee, G. D. Park, S. S., Hong, S. S., 2011, Synthesis of $TiO_2$ supported on SBA-15 using chelating method and their photocatalytic decomposition of methylene blue, J. Nanosci. & Nanotech., 11, 833-837.
Kamat, P. V., Dimitrijevic, N. M., 1990, Colloidal semiconductors as photocatalysts for solar energy conversion, Solar Energy, 44, 83-98.
Li, G., Zhao, X. S., 2006, Characterization and Photocatalytic Properties of Titanium-Containing Mesoporous SBA-15, Ind. Eng. Chem. Res., 45, 3569-3573.
Lopez, T., Rojas, F., Alexander-Katz, R., Galindo, F., Balankin, A., Buljan, A., 2004, Porosity, structural and fractal study of sol-gel $TiO_2-CeO_2$ mixed oxides, J. Solid State Chem., 177, 1873-1885.
Palmisano, L., Augugliaro, V., Schiavello, M., Sclafani, A., 1989, Influence of Acid-base Properties on Photocatalytic and Photochemical processes, J. Mol. Catal., 56, 284-295
Saif, M., Abdel-Mottaleb, M. S. A., 2007, Titanium dioxide nanomaterial doped with trivalent lanthanide ions of Tb, Eu and Sm: Preparation, characterization and potential applications, Inorganica Chimica Acta, 360, 2863-2874.
Tuel, A., 1995, Synthesis, characterization, and catalytic properties of titanium silicoaluminophosphate TAPSO-5, Zeolite, 15, 228-235.
Uno, M., Kosuga, A., Okui, M., Horisaka, K., Yamanaka, S., 2005, Photoelectro chemical study of lanthanide titanium oxides, $Ln_2Ti_2O_7$ (Ln = La, Sm, and Gd), J. Alloys & Compd., 400, 270-275.