Abstract
A comprehensive study of the surface properties of the γ-Al2O3in KNO3as a function of temperature was undertaken potentiometrically. Surface charge, ionization and complexation constants, and PZC were calculated from the potentiometric titration data in the temperature range 293–333 K. A difference between the PZC and CIP was observed as a result of the adsorption of NO−3ions. A simple graphical procedure based on the mass action law was used to determine the number of surface sites and equilibrium constants. Thermodynamic parameters, which showed a decrease in the role of nitrate NO−3ion in the charging mechanism of γ-Al2O3, were also evaluated, whereas that of K+ion increased with the increase in temperature.
Sign-in/Register to access full text options 
Free) 
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 call
