Synthesis and photocatalytic properties of HTaWO6/(Pt,TiO2) and HTaWO6/(Pt,Fe2O3) nanocomposites

被引：29
|
作者：
Wu, JH
Uchida, S
Fujishiro, Y
Yin, S
Sato, T [1 ]
机构：
[1] Tohoku Univ, Inst Chem React Sci, Sendai, Miyagi 9808577, Japan
[2] Huaqiao Univ, Inst Mat Phys Chem, Quanzhou 362011, Peoples R China
来源：
INTERNATIONAL JOURNAL OF INORGANIC MATERIALS | 1999年 / 1卷 / 3-4期
关键词：
layered compounds; microporous materials; semiconductors; intercalation reactions; catalytic properties;
D O I：
10.1016/S1466-6049(99)00038-0
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
HTaWO6/(Pt,TiO2) and HTaWO6/(Pt,Fe2O3) nanocomposites were synthesized by successive intercalation reactions of HTaWO6 with [Pt(NH3)(4)]Cl-2 aqueous solution, n-C3H7NH2/n-heptane mixed solution and acidic TiO2 colloid solution or [Fe-3(CH3CO2)(7)(OH)(H2O)(2)]NO3 aqueous solution followed by UV light irradiation. The gallery heights of HTaWO6/(Pt,TiO2), HTaWO6/TiO2, HTaWO6/(Pt,Fe2O3) and HTaWO6/Fe2O3 was less than 0.51 nm. The host HTaWO6 was white possessing band gap energy of 3.1 eV, whereas HTaWO6/Pt, HTaWO6/(Pt,TiO2), HTaWO6/Fe2O3 and HTaWO6/(Pt,Fe2O3) were yellow and showed broad reflection over 400-600 nm together with that corresponding to the host layer. Photocatalytic activities of HTaWO6/TiO2 and HTaWO6/Fe2O3 were superior to those of unsupported TiO2 and Fe2O3 and were greatly enhanced by co-incorporation of Pt. HTaWO6/Pt, HTaWO6/(Pt,TiO2), HTaWO6/Fe2O3 and HTaWO6/(Pt,Fe2O3) showed photocatalytic activity. (C) 1999 Elsevier Science Ltd. All rights reserved.
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页码：253 / 258
页数：6
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