New hybrid polymeric materials were prepared by the polymerisation of sodium silicate, water, and hydrochloric acid, with the subsequent addition of iron. After the treatment with a natural reducing biomass extract, the resulting material was used in Cr(VI) decontamination processes. The preparation of the materials started with the synthesis of the polymeric base, and the successive modifications were made to maximise Cr(VI) removal.

Experimental data collected for chromium removal