Mechanism of crystal modification of ferrihydrite by polymer hydrogels according to data of Mössbauer spectroscopyстатья
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Аннотация:The effect of a polymer hydrogel matrix and an ultrasonic field on the formation of a phase of iron(III) hydroxide is studied by means of Mössbauer spectroscopy. Polyacryl amide (PAA) and gelatin are chosen as polymer matrices for hydrogels. The transformation of iron hydroxide is interpreted as the formation of ferrihydrite with two different forms of iron relative to imperfect and relatively perfect fragments of the structure of crystallites. It is shown that the ultrasonic field and (in some cases) the polymer matrix have a substantial effect on the processes of crystallization of the dispersed phase.