Porous nano-material and preparation method thereof

Abstract

The invention discloses a porous nano-material and a preparation method thereof. The porous nano-material comprises an azo compound, a dendrimer, a functional nano-material, a fluorescent conjugated polymer and deionized water. The preparation method includes the steps: weighing raw materials according to ratio; mixing the raw materials; performing ultrasonic treatment after mixing; adding the rawmaterials into a reactor for reaction; cooling, centrifuging, washing, drying and calcining the raw materials to obtain the porous nano-material. The preparation technology is simple, the prepared porous nano-material has the functions of adsorption, bacteria resisting, odor removing and the like, generated negative oxygen ions can react with harmful gas such as formaldehyde and methylbenzene inair, toxic gas can be thoroughly decomposed as the dendrimer is combined with the azo compound, and purification efficiency is improved. The fluorescent conjugated polymer is assembled on a graphene oxide slice layer, and harmful bacteria are killed in the air purification process.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a porous nanomaterial and a preparation method thereof. Background technique [0002] The survival of life is inseparable from the air, and air pollution will seriously damage our respiratory organs and lungs, causing respiratory diseases and affecting people's health. With the intensification of air pollution, people's demand for air purification is becoming more and more urgent. With the improvement of people's living standards, people are more and more concerned about the quality of indoor environments such as living space, office space, transportation, leisure consumption places, etc. . [0003] Spraying air purifying liquid on indoor spaces and furniture, walls, floors, sofas, and cabinets can quickly remove air pollutants and provide a healthy living environment. At present, there are various air purification liquids mainly aimed at formaldehyde in the air. Accordin...

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Problems solved by technology

At present, there are various air purification solutions that mainly target formaldehyde in the air. According to the mechanism of action, they mainly include: one is the oxidation type, and the main components are similar to disinfectants, such as adding various oxidants such as chlorine dioxide, sodium hypochlorite, and sodium chlorite. , using the strong oxidizing properties of oxidants to oxidize and remove formaldehyde. This type of purification solution has strong oxidizing safety issues, which may cause harm and damage to the human body and furniture; the second is the photocatalytic type, which is to disperse photocatalysts such as titanium dioxide in Obtained in water, the advantage is good long-term effect; the disadvantage is that the purification speed is slow, and harmful intermediate products may be generated, and it will cause damage to furniture such as paint surfaces; the third is the adsorption type, which can quickly absorb various pollutants, but Since the adsorbent in the water is naturally dried after being sprayed, there are deficiencies such as poor adsorption capacity, desorption and release when the temperature rises or the concentration of pollutants drops; the fourth is the absorption reaction type, which uses the components in the purification solution to decontaminate the pollutants. The pollutants quickly absorb and fix pollutants through various actions. These actions generally do not chemically transform pollutants into harmless substances, and there is a possibility of re-release.

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