Preparation method of surface carbonation modified iron-doped nickel oxide and ozone decomposition method

Abstract

The invention relates to a preparation method of surface carbonation modified iron-doped nickel oxide and a method for decomposing ozone, the preparation method comprises the following steps: adding a precipitator into a water solution containing a nickel-iron precursor, carrying out a hydrothermal reaction to obtain a precursor nickel-iron layered double-metal hydroxide, and calcining to obtain the surface carbonation modified iron-doped nickel oxide. Uniformly mixing the obtained iron-doped nickel oxide with an aqueous solution of a modifier, and carrying out a hydrothermal reaction; wherein the modifier is one or more of urea, ammonium carbonate, ammonium bicarbonate, sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, lithium carbonate, lithium bicarbonate, sodium hydroxide, potassium hydroxide and lithium hydroxide. The preparation method disclosed by the invention is simple in process and does not need special conditions, and the iron-doped nickel oxide catalyst subjected to surface carbonation modification is rich in active sites and can show efficient and stable ozonolysis efficiency in a high-humidity or extremely-high-humidity environment.

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