Compound molecular sieve ozone catalyst, and preparation method therefor and use thereof

Abstract

Disclosed in the present invention are a compound molecular sieve ozone catalyst, and a preparation method therefor and the use thereof. The preparation method comprises: mixing molecular sieve powder with a low silica-alumina ratio and a salt solution of an active component, heating and stirring the mixed solution to evaporate the solvent, and washing, drying, calcining and grinding the residual solid to obtain hydrophilic molecular sieve powder loaded with an active component; mixing all-silicon molecular sieve powder and an aqueous solution of NH4F, performing a hydrothermal reaction, and after the reaction is finished, washing, drying, calcining and grinding the obtained solid material so as to obtain fluorination-modified hydrophobic molecular sieve powder; mixing the hydrophilic molecular sieve powder loaded with an active component, the fluorination-modified hydrophobic molecular sieve powder, an inorganic binder and a pore forming agent, and granulating the resulting mixture to obtain spherical catalyst particles; and drying and calcining the spherical catalyst particles to obtain a compound molecular sieve ozone catalyst. The ozone catalyst of the present invention improves the removal rate of refractory organics in reclaimed water.

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