T. Onofrei et al., TI(IV),ZR(IV) AND TH(IV) SORPTIONON 1(4'-AZOBENZYLCELZULOSE)-2-NAPHTOL - THERMOGRAVIMETRIC CHARACTERIZATION, Cellulose Chemistry and Technology, 29(2), 1995, pp. 135-142
1(4'-azobenzylcellulose)-2-naphtol was analyzed thermogravimetrically
under dynamic conditions of temperature before and after sorption of T
i(IV), Zr(IV) and Th(IV). The results obtained plead for a mechanism o
f differential chemosorption of Ti(IV), Zr(Ir) and Th(IV) on the sorbe
nt considered for the study, which is superposed on physical sorption.
Strength of the sorbent-metal links depends on the nature of the sorb
ed element, which is also confirmed by the existence of a real effect
of compensation, expressed by equation lnA = 0.2E-1.