سال انتشار: ۱۳۸۷

محل انتشار: همایش بین المللی ژئولیت ایران

تعداد صفحات: ۷

نویسنده(ها):

hossein Faghihian – Department of chemistry, Isfahan university, IRAN
Hossein salmani tehrani – Department of chemistry, Isfahan university, IRAN

چکیده:

The donor properties of nitroso compounds with metal ions (copper, nickel, tin and iron salts) and
complexes of metal ions with the ligand ρ-Nitroso-N,N-dimethylaniline (NODMA) have been prepared and
studied. The basicity of nitrosobenzene is sufficiently increased by substitution of the dimethylamino group
in the para position to allow the isolation of stable complex [1]. Ion exchanged Zeolites with mentioned metal
cations accelerated adsorption of NODMA and can adsorb NODMA without interference of organic solvent,
which will be helpful for removal of the N-nitrosamines pollution in environmental protection. Adsorption
capacity of zeolites mainly depended on their pore size, surface area and acid-basic properties. In this study
clinoptilolite and NaY zeolites were employed to adsorb ρ-Nitroso-N,N-dimethylaniline (NODMA) from
benzen or aqueous solution. In the present paper, the adsorption-interactions of typical probe molecule with
the active metal species on the ion-exchanged zeolite along with competition of solvent molecules influence
on the adsorptive properties, as well as whether this could be determined from the adsorption isotherms were
studied.