Fig. 6

X-ray diffraction spectra of the solid precipitate at pH 3. The mineral phase is ferrihydrite, Fe9.78O14(OH)2 with ICDD 00-058-0899.
X-ray diffraction spectra of the solid precipitate at pH 3. The mineral phase is ferrihydrite, Fe9.78O14(OH)2 with ICDD 00-058-0899.