The effect of substitution of Zr for Ti in KLaTiO4 with a layered perovskite structure has been studied on the photocatalytic decomposition of water under the UV light irradiation. Both the optical property and the crystallinity of KLaTiO4 were varied by the substitution of Zr for Ti. As Zr content was increased, the crystallinity of KLaZrxTi1-xO4 was increased, which had a positive effect on the photocatalytic activity in the water splitting reaction. However, the direct band gap property was lost gradually with increase of Zr content, which resulted in lowering the photocatalytic activity. As a result, the highest activity was obtained for KLaZr0.3Ti0.7O4. Although the absorption coefficients of photons for KLaZr0.1Ti0.9O4 and KLaTiO4 were higher than those for KLaZr0.3Ti0.7O4, the crystal structure was disordered, which resulted in lowering the activity. The nickel-loaded catalysts showed a higher activity than unloaded perovskites by a factor of greater than 2.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Price excludes VAT (USA)
Tax calculation will be finalised during checkout.
K. Domen, M. Hara, J. N. Kondo, T. Takata, A. Kudo, H. Kobayashi and Y. Inoue, Korean J. Chem. Eng. 18 (2001) 862.
K. Domen, S. Naito, T. Ohnishi and K. Tamaru, Chem. Phys. Lett. 92 (1982) 433.
Y. Inoue, T. Kubokawa and K. Sato, J. Chem. Soc., Chem. Commun. (1990) 1298.
A. Kudo, A. Tanaka, K. Domen, K. Maruya, K. Aika and T. Ohnishi, J. Catal. 111 (1988) 67.
S. Uchida, Y. Yamamoto, Y. Fujishiro, A. Watanabe, O. Ito and T. Sato, J. Chem. Soc. Dalton Trans. 93 (1997) 3229.
Y. Inoue, T. Niiyama, Y. Asai and Y. Sato, J. Chem. Soc. Chem. Commun. (1992) 579.
T. Takata, K. Shinohara, A. Tanaka, M. Hara, J. N. Kondo and K. Domen, J. Photochem. Photobiol., A: Chem. 106 (1997) 45.
J. Kim, D. W. Hwang, S. W. Bae, Y. G. Kim and J. S. Lee, Korean J. Chem. Eng. 18 (2001) 941.
K. Sayama and H. Arakawa, J. Chem. Soc., Chem. Commun. (1992) 150.
K. Sayama and H. Arakawa, J. Phys. Chem. 97 (1993) 53.
E. S. Raymond and E. T. Mallouk, J. Solid State Chem. 161 (2001) 225.
D. W. Hwang, J. S. Lee, W. Li, and S. H. Oh, J. Phys. Chem., B107 (2003) 4967.
M. Machida, S. Murakami, T. Kijima, S. Matsushima and M. Arai, J. Phys. Chem., B105 (2001) 3189.
K. Toda, Y. Kameo, S. Kurita, and M. Sato, J. Alloys Compound. 234 (1996) 19.
S.-H. Byeon and K. Park, J. Solid State Chem. 121 (1996) 430.
P. Blaha, K. Schwarz, J. Luitz, WIEN97; A Full Potential Linearized Augmented Plane Wave Package for Calculating Crystal Properties, ISBN 3-9501031-0-4 (Karlheinz Schwarz, Techn. Universitat Wien, Austria, 1999).
D. W. Hwang, H. G. Kim, J. Kim, K. Y. Cha, Y. G. Kim and J. S. Lee, J. Catal. 193 (2000) 40.
About this article
Cite this article
Reddy, V.R., Hwang, D.W. & Lee, J.S. Effect of Zr Substitution for Ti in KLaTiO4 for Photocatalytic Water Splitting. Catalysis Letters 90, 39–43 (2003). https://doi.org/10.1023/A:1025812125852