Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2006.1553.15592 Photocatalyst Using TiCl4 as a Precursor and its Photocatalytic Performance]]>QourzalS. M. Tamimi A. Assabbane A. Bouamrane A. Nounah L. Laanab Y. Ait-Ichou 7200667Titania (TiO2) photocatalysts were prepared by aqueous hydrolysis of TiCl4 and deposition with NaOH at 400-900°C. The powders obtained have been characterized using X-ray diffraction (XRD), infrared spectroscopy (IR) and scanning electron microscopy (SEM). The photocatalytic activities of the samples were also examined using the degradation of β-naphthol as a model reaction. As the calcination temperature increases, the anatase and rutile crystallite sizes increase. TiO2 powder calcined at 700°C exhibits much higher photocatalytic activity than commercial TiO2 Degussa P-25. The photodegradation rate of β-naphthol using TiO2 700°C particles was faster than that using TiO2 Degussa P-25 as photocatalyst by 2 times. Conversely, prolonged calcination at higher temperatures (900°C) is detrimental to photoactivity.]]>Abou-Helal, M.O. and W.T. Seeber, 20021955362Aguado, J., R.V. Grieken, M.J.L. Munoz and J. Marugan, 20022-based photocatalysts. ]]>7595102Assabbane, A., A. Boussaoud, A. Albourine, Y.A. Ichou and M. Petit-Ramel,199722301311Assabbane, A., Y.A. Ichou, H. Tahiri, C. Guillard and J.M. Herrmann, 2000247187Chan, C.K., J.F. Porter, Y.G. Li, W. Guo and C.M. Chan, 199982566572Chemseddine, A. and H.P. Boehm, 19902 photocatalyst. ]]>60295311Chen, Y., K. Wang and L. Lou, 20042 particles under visible light irradiation. ]]>163281287Dhage, S.R., V.D. Choube, V. Samuel and V. Ravi, 20042 at 100°C. ]]>5823102313Florencio, M.H., E. Pires, A.L. Castro, M.R. Nunes, C. Borges and F.M. Costa,200455345355Gablenz, S., D. Voltzke, H.P. Abicht and J.N. Zdralek, 19982 powders via spray hydrolysis of titanium tetraisopropoxide.]]>17537539Guillard, C., D. Debayle, A. Gagnaire, H. Jaffrezic and J.M. Herrmann,20042 films prepared by PECVD and sol-gel methods.]]>3914451458Herrmann, J.M., H. Tahiri, Y.A. Ichou, G. Lassaletta, A.R.G. Elipe and A. Fernandez,19972 and Ag-TiO2 coatings on quartz. ]]>13219228Jung, K.Y., S.B. Park and M. Anpo, 2004170247252Keshmiri, M., M. Mohseni and T. Troczynski,20042 sol-gel-derived composite and its photocatalytic activities for trichloroethylene oxidation.]]>53209219Konstantinou, I.K., V.A. Sakkas and T.A. Albanis, 20012 suspensions: Identification of intermediates and the reaction pathway.]]>34227239Lee, H.S., T. Hur, S. Kim, J.H. Kim and H.I. Lee, 20032 with SiOx on the photocatalytic degradation of a pyrimidine derivative. ]]>84173180Meyer, S., R. Gorges and G. Kreisel, 2004450276281Parra, S., S. Malato and C. Pulgarin, 20022 and fixed bacteria for the mineralization of isoproturon. ]]>36131144Parra, S., S.E. Stanca, I. Guasaquillo and K.R. Thampi, 20042. ]]>51107116Chen, Y.F., C.Y. Lee, M.Y. Yeng and H.T. Chiu,20032 nanopowders.]]>247363370Sivalingam, G. and G. Madras, 20042 mechanism and kinetics.]]>2698190Su, C., B.Y. Hong and C.M. Tseng,200496119126Taborda, A.V., M.A. Brusa and M.A. Grela, 20012 nanoparticles.]]>208419426Tryba, B., A.W. Morawski and M. Inagaki, 20032-mounted activated carbon. ]]>46203208Vorontsov, A.V., A.A. Altynnikov, E.N. Savinov and E.N. Kurkin, 20012 photocatalytic activity and diffuse reflectance spectra. ]]>144193196Vulliet, E., C. Emmelin and J.M. Chovelon, 20041636975Yang, Y., Y. Guo, C. Hu, Y. Wang and E. Wang,2004273201210Zhao, H., S. Xu, J. Zhong and X. Bao, 20042 suspension systems. ]]>93-95857861Zhu, X., X. Feng, C. Yuan, X. Cao and J. Li, 20042: Identification of intermediates and degradation pathways. ]]>214293300