A facile method to synthesize iron–carbon composites, which exhibit synergistic adsorption and reaction towards a more efficient removal of Cr(vi).
Biomass-derived carbon/sulfur composites are synthesized by a simple approach using sodium thiosulfate as both the activating agent and sulfur source.
A eutectic salt mixture (LiCl/ZnCl2) as a template plays a dual role by rendering sufficient surface area and a source of Zn2+ for in situ formation of ZnS. The resulting composites as an anode exhibit superior performance compared to pure ZnS.