Bimodal meso-/macro-porous polymer monolith decorated chromophoric ion-receptor as dualistic solid-state optical sensor for the ultrafast and selective recovery of cobalt ions

We propose a facile solid-state colorimetric approach towards the selective optical recognition of Co(II), using a chromoionophoric molecular ion-receptor i.e., (E)-2-(4-(diethylamino)-2-hydroxybenzylidene)-N-phenylhydrazine-1-carbothioamide (DEHPC) uniformly decorated on a bimodal meso-/macro-porous polymer monolith. The surface morphology and structural features of the polymer monolith template and its probe impregnated sensor material are...