D. I. Nemkova, S. V. Saikova, A. E. Krolikov, E. V. Pikurova, A. S. Samoilo
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引用次数: 0
Abstract
Nonferrous metal ferrites are promising magnetic catalysts that can be easily separated from the reaction mixture after use by applying a magnetic field. However, these materials have fast electron–hole relaxation times, which reduces their activity in photoreactions. Hybrid ferrite-based nanostructures, for example, composites with zinc oxides, can help to overcome the problem. The catalytic activity of such a structure depends highly on the method by which it was prepared. In this work, we used the alkali coprecipitation of Fe2+ and Ni2+ ions, whose hydroxides have similar values of solubility products (SPs), to prepare the most stoichiometric and structurally and compositionally homogeneous nickel ferrite precursor. The influence of the reaction parameters on the purity and particle size of the nickel ferrite phase was studied using experiment and data processing design. Spherical nanoparticles of 15.9 ± 1.1 nm in diameter were produced under the identified optimal conditions. The prepared material was used to manufacture various NiFe2O4/ZnO magnetic composites. The photocatalytic activity of the hybrid structures was shown in photodegradation of the Crystal Violet dye.
期刊介绍：
Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.
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