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Published online by Cambridge University Press: 15 February 2011
Pyrene is used as a molecular probe to study surface polarity, constrained character of diffusion, oxygen diffusion, effects of coadsorbed water, and exchange cations in zeolites A, X and Y. The experimental methods include both steady-state and time-resolved fluorescence spectroscopy, and diffuse reflectance absorption spectroscopy. The properties of CdS and TiO2 constructed in zeolites are also presented.