z-logo
open-access-imgOpen Access
Synthesis, Characterization and Application of a Derivatized Acidic Salt of a Tetravalent Metal. Pyridine Anchored on to Tin(IV) Tungstoselenate
Author(s) -
Syed Ashfaq Nabi,
Aminul Islam,
Nafisur Rahman
Publication year - 2000
Publication title -
adsorption science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.682
H-Index - 36
eISSN - 2048-4038
pISSN - 0263-6174
DOI - 10.1260/0263617001493611
Subject(s) - tin , chemistry , pyridine , inorganic chemistry , sorption , metal ions in aqueous solution , metal , ion exchange , salt (chemistry) , adsorption , nuclear chemistry , ion , organic chemistry
The inorgano-organic ion-exchanger, tin(IV) tungstoselenate–pyridine, has been prepared by derivatizing the inorganic ion-exchange material, tin(IV) tungstoselenate, with an organic moiety, pyridine. Chemical studies showed the tin(IV) tungstoselenate/pyridine mole ratio to be 806.5:1, indicating a weak sorption of pyridine on to the surface of the tin(IV) tungstoselenate. The material was characterized on the basis of SEM, FT-IR, TGA and DTA studies. The uptake of Cu 2+ , Ni 2+ , Fe 2+ and Fe 3+ ions was found to be much higher on tin(IV) tungstoselenate–pyridine relative to tin(IV) tungstoselenate. The uptake of these metal ions as a function of loading and pH was also studied when the following affinity order was observed: Cu 2+ > Co 2+ > Ni 2+ > Fe 2+ > Fe 3+ . The uptake of metal ions increased initially with loading but became constant at higher loading. The most favourable pH range was found to be that between 3.5 and 4.5.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here