Hydrothermal synthesis of a novel nanolayered tin phosphate for removing Cr(iii).

In this work, an outstanding nanolayered tin phosphate with 15.0 Å interlayer spacing, Sn (HPO)·3HO (SnP-H), has been synthesized by conventional hydrothermal method and first used in the adsorptive removal of Cr(iii) from aqueous solution. A number of factors such as contact time, initial concentration of Cr(iii), temperature, pH, and ionic strength on adsorption were investigated by batch tests.