Artículos de revistas
Annealing Temperature Effects On Sol-gel Nanostructured Mesoporous Tio 2/sio2 And Its Photocatalytic Activity
Registro en:
Materials Chemistry And Physics. , v. 126, n. 01/02/15, p. 188 - 194, 2011.
2540584
10.1016/j.matchemphys.2010.11.041
2-s2.0-78751610592
Autor
Strauss M.
Maroneze C.M.
De Souza E Silva J.M.
Sigoli F.A.
Gushikem Y.
Mazali I.O.
Institución
Resumen
Mesoporous TiO2/SiO2 (5 wt% TiO2) was synthesized by the sol-gel method and thermally treated up to 1273 K. The materials obtained were characterized by N2 adsorption/desorption isotherms, XRD, TEM, Raman and UV-vis diffuse reflectance spectroscopies. The results indicate the presence of thermally stable anatase TiO2 nanoparticles (∼20 nm) highly dispersed in the SiO2 matrix, with no evidence of particle growth for materials treated up to 1073 K. Important features related to the number of structural defects and short-distance ordering of TiO2 nanoparticles were found and they have a direct relationship with the photocatalytic performance of the materials. Higher photocatalytic activity toward methylene blue decolourisation was observed for solids annealed at higher temperatures. © 2010 Elsevier B.V. All rights reserved. 126 01/02/15 188 194 Fujishima, A., Honda, K., (1972) Nature, 238, p. 37 Fujishima, A., Kohayakawa, K., Honda, K., (1975) J. Electrochem. Soc., 122, p. 1487 Fujishima, A., Rao, T.N., Tryk, D.A., (2000) J. Photochem. Photobiol. C: Photochem. Rev., 1 (1), p. 1 Konstantinou, I.K., Albanis, T.A., (2004) Appl. Catal. B: Environ., 49 (1), p. 1 Bahnemann, D.W., Kholuiskaya, S.N., Dillert, R., Kulak, A.I., Kokorin, A.I., (2002) Appl. Catal. B: Environ., 36 (2), p. 161 O'Regan, B., Grätzel, M., (1991) Nature, 353, p. 737 Barbé, C.J., Arendse, F., Comte, P., Jirousek, M., Lenzmann, F., Shklover, V., Grätzel, M., (1997) J. Am. Ceram. Soc., 80 (12), p. 3157 Tanga, H., Prasada, K., Sanjinésa, R., Lévya, F., (1995) Sens. Actuator B: Chem., 26 (13), p. 71 Du, X., Wang, Y., Mu, Y., Gui, L., Wang, P., Tang, Y., (2002) Chem. Mater., 14 (9), p. 3953 Monticone, S., Tufeu, R., Kanaev, A.V., Scolan, E., Sanchez, C., (2000) Appl. Surf. Sci., 162-163, p. 565 Nalwa, H.S., (2004) Encyclopedia of Nanoscience and Nanotechnology, 9 Murray, C.B., Kagan, C.R., Bawendi, M.G., (2000) Annu. Rev. Mater. Sci., 30, p. 545 Kormaneni, S., (1992) J. Mater. Chem., 12, p. 1219 Mazali, I.O., Alves, O.L., (2005) J. Phys. Chem. Solids, 66 (1), p. 37 Dong, W., Sun, Y., Lee, C.W., Hua, W., Lu, X., Shi, Y., Zhang, S., Zhao, D., (2007) J. Am. Chem. Soc., 129, p. 13894 Lihitkar, N.B., Abyaneh, M.K., Samuel, V., Pasricha, R., Gosavi, S.W., Kulkarni, S.K., (2007) J. Colloid Interface Sci., 314, p. 310 Van Grieken, R., Aguado, J., López-Muñoz, M.J., Marugá, J., Photochem, J., (2002) Photobiol. A: Chem., 148, p. 315 Gao, L., Zhang, Q., (2001) Scr. Mater., 44, p. 1195 Kandiel, T.A., Feldhoff, A., Robben, L., Dillert, R., Bahnemann, D.W., (2010) Chem. Mater., 22 (6), p. 2050 Zhang, Z., Wang, C.C., Zakaria, R., Ying, J.Y., (1998) J. Phys. Chem. B, 102, p. 10871 Li, X., Quan, X., Kutal, C., (2004) Scr. Mater., 50, p. 499 Kolen'Ko, Y.V., Churagulov, B.R., Kunst, M., Mazerolles, L., Colbeau-Justin, C., (2004) Appl. Catal. B: Environ., 54, p. 51 Lowell, S., Shields, J.E., Thomas, M.A., Thommes, M., (2006) Characterization of Porous Solids and Powders: Surface Area. Pore Size and Density, , Springer Armaroli, T., Milella, F., Notari, B., Willey, R.J., Busca, G., (2001) Top. Catal., 15 (1), p. 63 Usseglio, S., Calza, P., Damin, A., Minero, C., Bordiga, S., Lamberti, C., Pelizzetti, E., Zecchina, A., (2006) Chem. Mater., 18, p. 3412 Reddya, K.M., Manoramaa, S.V., Reddy, A.R., (2002) Mater. Chem. Phys., 78, p. 239 Toyoda, T., Tsuboya, I., (2003) Rev. Sci. Instrum., 74, p. 782 Enright, B., Fitzmaurice, D., (1996) J. Phys. Chem., 100, p. 1027 Corrêa, D.N., (2009) Síntese de Nanopartículas de Óxidos Semicondutores Tipo Caroço-Casca em Ambiente Confinado, , Master's thesis, UNICAMP Elliot, R., (1957) J. Phys. Rev., 108, p. 1384 Brus, L., (1984) J. Chem. Phys., 80, p. 4403 Brus, L., (1986) J. Phys. Chem., 90, p. 2555 Sclafani, A., Palmisano, L., Schiavello, M., (1990) J. Phys. Chem., 94, p. 829 Bonapasta, A.A., Filippone, F., Mattioli, G., Alippi, P., (2009) Catal. Today, 144, p. 177 Mazali, I.O., Souza Filho, A.G., Neto, B.C.V., Mendes Filho, J., Alves, O.L., (2006) J. Nanoparticle Res., 8 (1), p. 141 Bersani, D., Lottici, P.P., Ding, X.Z., (1998) Appl. Phys. Lett., 72 (1), p. 73 Richter, H., Wang, Z.P., Ley, L., (1981) Solid State Commum., 39, p. 625 Sahoo, S., Arora, A.K., Sridharan, V., (2009) J. Phys. Chem. C, 113, p. 16927 Parker, J.C., Siegel, R.W., (1990) J. Mater. Res., 5 (6), p. 1246 Zhang, W.F., He, Y.L., Zhang, M.S., Yin, Z., Chen, Q., (2000) J. Phys. D: Appl. Phys., 33, p. 912 Bersani, D., Antonioli, G., Lottici, P.P., Lopez, T., (1998) J. Non-Cryst. Solids, 232-234, p. 175 Suriye, K., Jongsomjit, B., Satayaprasert, C., Praserthdam, P., (2008) Appl. Surf. Sci., 255, p. 2759 Hall, W.H., (1949) Proc. Phys. Soc. Lond. Sec. A, 62, p. 741 Qadri, S.B., Yang, J.P., Skelton, E.F., Ratna, B.R., (1997) Appl. Phys. Lett., 70 (8), p. 1020 Houas, A., Lachheb, H., Ksibi, M., Elaloui, E., Guillard, C., Herrmann, J.M., (2001) Appl. Catal. B: Environ., 31 (2), p. 145 Kumar, K.V., Porkodi, K., Rocha, F., (2008) Catal. Commun., 9, p. 82