Title :
Sorption of scandium on acid-modified transcarpathian clinoptilolite
Author :
Vasylechko, V.O. ; Korpalo, C.B. ; Gryshchouk, G.V.
Author_Institution :
Dept. of Analitycal Chem., Univ. of Lviv, Lviv, Ukraine
Abstract :
The sorption properties of acid-modified Transcarpathian clinoptilolite towards Sc(III) under dynamic conditions have been studied. It was found that the most effective acid-modifier is 0.5M HCl solution. Maximal sorption capacity is observed in the previously heat-treated at 50 °C samples of H-clinoptilolite in low alkaline solutions (pH=8.5). At this conditions almost all of the Sc(III) ions are in the form of neutral hydroxo complex [Sc(OH)3(H2O)3]. The sorption capacity of H-clinoptilolite towards Sc(III) ions under optimum conditions is 9.98 mg/g.
Keywords :
heat treatment; organic compounds; scandium; sorption; H-clinoptilolite; Sc; Sc(III) ions; acid-modified transcarpathian clinoptilolite; alkaline solutions; dynamic conditions; heat-treatment; neutral hydroxo complex; sorption capacity; sorption properties; temperature 50 degC; Cadmium; Human computer interaction; acid-modified clinoptilolite; scandium; sorption;
Conference_Titel :
Oxide Materials for Electronic Engineering (OMEE), 2014 IEEE International Conference on
Conference_Location :
Lviv
Print_ISBN :
978-1-4799-5960-0
DOI :
10.1109/OMEE.2014.6912325
