Özet:

Physico-chemical production features of composite materials based on natural clay minerals and nanoscale  were investigated in the paper. The X-ray phase analysis has shown that the deposition of the finely dispersed iron layer on the surface of layered or layered-band silicates leads to the formation of sorption materials, which contain the crystalline phases α-Fe, FeO and FeOON. The sorption properties of the synthesized samples with respect to the cobalt compounds were examined. It is shown that the resulting composite materials have a high sorption capacity compared to the initial clay minerals. This is caused by an increase in the number of groups in thin oxide-hydroxide films on the surface of the  nanoparticles.The studies of rheological properties of dispersions of palygorskite, modified by nanodispersed iron were performed. It was found that at the  content that corresponds to the mineral exchange capacity ratio of 1: 5, the suspension exhibits pseudoplastic nature and is resistant. The possibility of using finely dispersed adsorbent in the groundwater purification from the metal ions with applying modern environmental technologies, which are based on the direct pumping of aqueous dispersions of nanomaterials in the contaminated soil layers through injection wells was shown. Author Biographies Вікторія Юріївна Тобілко, National Technical University of Ukraine «Kyiv Polytechnic Institute» 37 Peremogy ave., Kyiv, Ukraine, 03056 Assistant Department of chemical technology of ceramics and glass

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