Spectroscopic Studies of MnO2 and SiO2 Containing Soil-Active Phosphate Glasses

The preparation of a novel iron/manganese binary oxide for the efficient removal of hexavalent chromium [Cr(vi)] from aqueous solutions

“…2b. The main characteristic bands of Fe-Mn binary oxide were assigned as follows: 37,38 the intensive peaks at 3228 cm À1 and 1627 cm À1 can be attributed to the -OH stretching vibration band from H 2 O and Fe(OH) 3 . The characteristic peaks at 1123 cm À1 and 435 cm À1 are associated with Fe-OH (Fe 2 O 3 ) and goethite a-FeOOH stretching vibration bands.…”