Design of visible light sensitive (Cr,Ti)-containing mesoporous silica photocatalyst using a photo-assisted deposition (PAD) method

被引：0
|
作者：
Yamashita, H
Chiyoda, O
Masui, Y
Ohshiro, S
Kida, K
Anpo, M
机构：
[1] Osaka Univ, Grad Sch Engn, Dept Mat Sci & Proc, Suita, Osaka 5650871, Japan
[2] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Sakai, Osaka 5998531, Japan
来源：
MOLECULAR SIEVES: FROM BASIC RESEARCH TO INDUSTRIAL APPLICATIONS, PTS A AND B | 2005年 / 158卷
关键词：
D O I：
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中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
It is vital to develop a visible light sensitive photocatalyst. In this study, (Cr,Ti)-binary oxide containing mesoporous silica (Cr/Ti-HMS) photocatalyst was prepared by ail application of a photo-assisted deposition (PAD) technique and characterized by XAFS and photoluminescence studies. Using the PAD method, the tetrahedrally coordinated Cr-oxide moieties can be anchored oil Ti-HMS forming the direct interaction between Cr-oxide and Ti-oxide moieties. The Cr/Ti-HMS exhibited the high efficiency and selectivity in the photoepoxidation of propene with O-2 under visible light irradiation. The charge transfer excited state of the Cr-oxide moieties anchored oil Ti-oxide moieties play a significant role in photocatalytic reactions under visible light irradiation.
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页码：43 / 50
页数：8
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