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Fourier transform infrared spectroscopy (FTIR), combined with ultraviolet-visible spectroscopy (UV-Vis) and transmission electron micrograph (TEM), has been used to observe the interaction between fulvic acid (FA) and hematite. The FTIR data have shown that the interaction mechanism corresponds mainly to the ligand-exchange involving carboxylic functional groups of the FA and hematite surface sites...
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