Template structures based on humic acids as selective sorbents for heavy metals
Here we suggest new approach to the functional materials synthesis using copolymers based on humics and m-aminophenol as templates. Template materials have been synthesized and characterized in terms of humic structure fragments using <sup>13</sup>C NMR analysis. We have also analyzed the sorption properties of the materials as for heavy metals (Cu (II), Ni, Co). Selectivity factor, the ratio of own template ions to other ones is for various metals from 4 (Ni) to 17 (Cu). Content of bound metals and bonding strength for humic complexes depended on synthesis conditions, metal ionic radius, and complex-forming ability.