The invention discloses a preparation method and application of
oxide coated multifunctional resin, and belongs to the technical field of new material preparation and advanced oxidation. The preparation method comprises the following steps: firstly preparing a
coupling agent
alcohol-water solution swelling resin, then mixing the resin with a
potassium permanganate solution, then dropwise adding a
mixed solution containing low-valence
metal and Mn < 2 + >, forming an
oxide layer on the surface of the resin after an oxidation-reduction reaction, and finally regulating and controlling the loading capacity of the
oxide layer by adopting
hydrothermal synthesis. According to the method, the amphiphilic characteristic of the
coupling agent is utilized, so that the combination of the oxide and the resin is firmer, the
active components are not easy to wear and fall off, the material performance is improved, and the service life is prolonged. The material has excellent VOCs adsorption capacity under
high humidity, the outer-layer oxide has Fenton-like catalytic performance, VOCs are catalytically decomposed at normal temperature, and secondary pollutants such as
nitric oxide and dioxin are prevented from being generated. And after the VOCs are adsorbed and saturated, the material can be recycled and regenerated through an advanced oxidation technology and is repeatedly used, so that the treatment cost of the VOCs is reduced.