In the past decades, enormous attention has been focused on semiconductor photocatalysis for environmental remediation because it can utilize solar energy to decompose various organic compounds in air and aqueous systems. Titanium dioxide (TiO2
) is most widely studied photocatalysts because of its low cost, high reactivity and stability. However, only 5 % of solar energy can be use by TiO2
on account of its wide band gap energy. On the other hand, tungsten trioxide (WO3
) is a visible-light responsive photocatalyst with a narrow band gap energy and similar valence band potential like that of TiO2
. Hence, a much effort has been made to prepare WO3
based photocatalyst for decomposition of organic compounds. In the present study, we have prepared photocatalysts (Pt, Pt3
Ti) by thoroughly mixed with WO3
powder and precursor in a mortar. We have already reported that Pt3
Ti ordered intermetallic compound is a promising catalyst for electrochemical oxygen reduction and methanol, ethanol oxidations.1,2
loaded photocatalysts were characterized by p
XRD, UV, TEM and XPS. Further, we examine organic compounds decomposition under visible light irradiation over cocatalysts loaded WO3
. The details about the synthesis, characterization and photocatalytic activity of catalysts would be discussed in the presentation.
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2. G. Saravanan, H. Abe, Y. Xu, N. Sekido, H. Hirata, S. Matsumoto, H. Yoshikawa, and Y. Y.-Mitarai, Langmuir, 26, 11446 (2010).
3. G. Saravanan, T. Hara, H. Yoshikawa, Y. Yamashita, S. Ueda, K. Kobayashi, and H. Abe, Chem. Commun., 48, 7441 (2012).