Incorporation of silver (I) ions within zeolite cavities and their photocatalytic reactivity for the decomposition of N2O into N2 and O2

被引:14
作者
Ju, WS [1 ]
Matsuoka, M [1 ]
Anpo, M [1 ]
机构
[1] Univ Osaka Prefecture, Grad Sch Engn, Dept Appl Chem, Osaka 5998531, Japan
关键词
D O I
10.1155/S1110662X03000060
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
Ag+/ZSM-5 catalysts were prepared by an ion-exchange method. UV-irradiation of the Ag+/ ZSM-5 catalysts in the presence of N2O led to the photocatalytic decomposition of N2O into N-2 and O-2 at 298 K. Investigations of the effective wavelength of the irradiated UV-light for the reaction as well as the in-situ characterization of the catalysts by means of UV-Vis, photoluminescence and FT-IR spectroscopies revealed that the photoexcitation of the Ag+ - N2O complexes formed between gaseous N2O and the isolated Ag+ ions exchanged within the zeolite cavities plays a significant role in the reaction.
引用
收藏
页码:17 / 19
页数:3
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