Przemysl Chemiczny, Vol.94, No.10, 1828-1831, 2015
The effect of synthesis method on the physicochemical properties of ferrihydrite and Si-doped ferrihydrite
Pure FeHO8 center dot 4H(2)O and Si-doped ferrihydrites (Si/Fe = 0.1 molar ratio) were pptd. from aq. solns. of Fe-2(SO4)(3) and Fe(NO3)(3) with NaOH optionally in presence of Na2SiO3 under stirring. Si-contg. ferrihydrites had smaller particles and showed higher thermal stability and sp. surface area than the pure ones.