Open AccessInvestigations on the local structure of Ag + /ZSM‐5 catalysts and their photocatalytic reactivities for the decomposition of N 2 O at 298 K
Author(s) -
Matsuoka Masaya,
Ju WooSung,
Yamashita Hiromi,
Anpo Masakazu
Publication year - 2001
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049500017519
Subject(s) - catalysis , decomposition , photoexcitation , photocatalysis , photoluminescence , x ray absorption fine structure , photochemistry , ion , zsm 5 , chemistry , chemical decomposition , ion exchange , irradiation , inorganic chemistry , materials science , spectroscopy , zeolite , excited state , organic chemistry , physics , optoelectronics , quantum mechanics , nuclear physics
Ag + /ZSM‐5 catalysts were prepared by an ion‐exchange method and UV‐irradiation of the catalysts in the presence of N 2 O led to the photocatalytic decomposition of N 2 O into N 2 and O 2 at 298 K. Investigations on the effective wavelength of irradiated UV‐light for the reaction as well as the in‐situ characterization of the catalysts by means of XAFS, UV‐Vis, photoluminescence and FT‐IR spectroscopies revealed that the photoexcitation of the Ag + ‐N 2 O complexes formed between gaseous N2O and the isolated Ag + ions play a significant role in this reaction.