Influence of alkylammonium cation on multisweep cyclic voltammetry of Cu(II) on carbon paste electrode modified with montmorillonite

Abstract

Cyclic voltammetry of Cu2+ on the carbon paste electrode modified either with montmorillonite SAz-1 or with montmorillonite SAz-1 pretreated with hexadecyltrimethylammonium cation was performed to find the hexadecyltrimethylammonium cation influence on the Cu2+ sorption. In addition, the hexadecyltrimethylammonium presence in the sorption solution was studied, too. In this case, a significant inhibition on the Cu2+ sorption was found. The inhibition is supposed to be a consequence of the competitive sorption of HDTM and Cu2+.