“…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.…”
“…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.…”
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