An imprinted organic--inorganic hybrid sorbent for selective separation of cadmium from aqueous solution.

摘要: A hierarchical double-imprinting concept was applied to the preparation of a new organic−inorganic hybrid sorbent for selective separation Cd(II) from aqueous solution. In prepared hierarchically imprinted sorbent, both and surfactant micelles (cetyltrimethylammonium bromide) were used as templates. The through self-hydrolysis, self-condensation, co-condensation cross-linking agent (tetraethoxysilicate) functional precursor (3-(2-aminoethylamino)-propyltrimethoxysilane) in an alkaline media followed by gelation. selectivity investigated batch competitive ion-binding experiment using Zn(II) mixture. largest coefficient presence found be over 100; relative between Zn(II), 200. uptake capacity sol−gel are much higher than...