%0 Journal Article
%T Uptake of CrO4(2-) Ions by Fe-Treated Tri-Calcium Phosphate
%A Serrano-G¨®mez
%A Juan
%A Ram¨ªrez-Sandoval
%A Jorge Luis
%A Bonifacio- Mart¨ªnez
%A Juan
%A Granados-Correa
%A Francisco
%A Badillo-Almaraz
%A Ver¨®nica Elizabeth
%J Journal of the Mexican Chemical Society
%D 2010
%I Sociedad Qu¨ªmica de M¨¦xico
%X cro42- ion adsorption on fe-treated tri-calcium phosphate was studied by batch experiments as a function of contact time, initial concentration of metal ion and temperature. adsorption results showed that at ph 5.5 and 1.0¡Á10-4 m chromium concentration the adsorption capacity of fe-treated tri-calcium phosphate for cro42- ions was 7.10 ¡Á 10-3 mmol/g. chromium adsorption data on fe-treated tri-calcium phosphate at various initial concentration fitted the freundlich isotherm. by temperature studies the thermodynamic parameters ¦Äh0, ¦Äg0 and ¦Äs0 were estimated and the obtained results showed that the adsorption reaction was endothermic and spontaneous.
%K fe-treated tri-calcium phosphate
%K chromate ions
%K adsorption
%K isotherm
%K thermodynamics parameters.
%U http://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S1870-249X2010000100006&lng=en&nrm=iso&tlng=en