Preparation of silica pillared Ca2Nb3O10 and its photocatalytic activity

被引：97

作者：

Ebina, Y ^{[1
]}

Tanaka, A ^{[1
]}

Kondo, JN ^{[1
]}

Domen, K ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,RESOURCES UTILIZAT RES LAB,MIDORI KU,YOKOHAMA,KANAGAWA 226,JAPAN

来源：

CHEMISTRY OF MATERIALS | 1996年 / 8卷 / 10期

关键词：

D O I：

10.1021/cm960232q

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：

Silica pillared Ca2Nb3O10 was prepared from the layered perovskite KCa2Nb3O10 via alkylammonium ion intercalated Ca2Nb3O10. The obtained materials were characterized by XRD, TEM, NMR, and BET measurements. The interlayer spacing increased in parallel with the length of the alkyl chain of intercalated alkylamines although the BET surface area was not reflected in this increase. The photocatalytic activity of the silica pillared Ca2Nb3O10 was studied for H-2 evolution from aqueous alcohol solutions. Marked increase by ca. 30 times in activity was obtained for silica pillared Ca2Nb3O10 compared with the original HCa2Nb3O10 in an aqueous propanol or butanol solution, while no difference was observed in an aqueous methanol solution. The result was interpreted in terms of the intercalation of the reactant alcohol molecules into the interlayer space.

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页码：2534 / 2538

页数：5

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