Cr(iii)-bearing Schwertmannite Transformation by Fe(ii)–oxalic Acid Catalysis: Complexation of Fe(iii)/oxalate and Nanoscale Redistribution of Cr/C

In situ ATR-FTIR results showed that the addition of Fe(ii) has changed partly the binding mode of OA on the Sch surface, but it has not changed the priority binding order. The addition of OA reduced the immobilization of Cr regardless of pH.