Abstract
The paper presents the comparative analysis of phase formation in NiO-CuO-Fe2O3-Cr2O3 system at salt decomposition reactions. Spinel phase formation is proven for each material. Synthesized materials are examined with X-ray phase analysis, low temperature nitrogen absorption, electronic microscope scanning. Highly dispersed spinel samples are proven to be obtained through synthesis at organic precursor presence. High catalytic activity of synthesized materials in the process of methyl orange oxidative destruction at hydrogen peroxide presence is determined. The fact is extremely useful for industrial sewage water treatment materials development for enterprises that employ organic pigments or colorants at their production process.
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