Incorporation of silver (I) ions within zeolite cavities and their photocatalytic reactivity for the decomposition of <mml:math alttext="${\text{N}}_{\text{2}} {\text{O}}$" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mtext>N</mml:mtext><mml:mtext>2</mml:mtext></mml:msub><mml:mtext>O</mml:mtext></mml:mrow></mml:math> into <mml:math alttext="${\text{N}}_{\text{2}} $" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mtext>N</mml:mtext><mml:mtext>2</mml:mtext></mml:msub></mml:mrow></mml:math> and <mml:math alttext="${\text{O}}_{\text{2}} $" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mtext>O</mml:mtext><mml:mtext>2</mml:mtext></mml:msub></mml:mrow></mml:math>

Ju, Woo-Sung; Matsuoka, Masaya; Anpo, Masakazu

doi:https://doi.org/10.1155/S1110662X03000060

International Journal of Photoenergy

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Volume 5 | Article ID 713102 | https://doi.org/10.1155/S1110662X03000060

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

Woo-Sung Ju,¹Masaya Matsuoka,¹and Masakazu Anpo¹

Abstract

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 N2 and O2 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.

Copyright

Copyright © 2003 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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