Application of a Novel Ion-Imprinted Polymer to the Separation of Traces of CdII Ions in Natural Water: Optimization by Box-Behnken Design

This study describes the preparation of a novel ion-imprinted polymer (IIP) to apply pre-concentration of cadmium ions in water samples of the Pontal Bay in Ilhéus, Brazil. First, cadmium ion was complexed with 2-(2-thiazolylazo)-p-cresol (TAC). Subsequently, there was the polymerization using ethylene glycol dimethacrylate and methacrylic acid monomers along with the radical azobisisobutyronitrile initiator. The mold ions were removed using 2:1 (v v-1) nitric acid. The thermal stability of the polymer was evaluated by thermogravimetry and the characterization was performed by Fourier transfo...