Abstract
Reflectance spectrophotometric measurements on the solvatochromic indicator 4-nitroanisole adsorbed from cyclohexane solution by silicalite and ZSM-5 zeolites containing various amounts of aluminium ion have been made and used to calculate the parameter Π*, which is a single-value measure of polarity and polarizability properties for each solid material. Adsorption isotherms concerned with the uptake of the dye by the solid materials have been determined. The values of Π* for silicate are less than half of those determined from similar measurements on amorphous silica. Compared with silicalite, the values of Π* for the zeolites ZSM-5 are somewhat greater, showing a levelling-off with increasing content of aluminium ion, in keeping with the conservation of hydrophobicity with increasing acidity of the zeolite surface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
