Nanospectral long-acting medium capable of efficiently decomposing organic pollutants under dark and no light conditions, preparation method and application thereof

Abstract

The invention relates to a long-acting nano-spectrum medium that can efficiently decompose organic pollutants under dark and no-light conditions. The long-acting nano-spectrum medium is composed of 100 parts by weight of water and 3-20 parts by weight of nano-modified niobium oxide. Modified niobium oxide is prepared by the following steps: Dissolve 3-10 parts by weight of niobium pentachloride in 100 parts by weight of absolute ethanol at room temperature to obtain an ethanol solution of niobium pentachloride, and let it stand for 5-30 minutes; Add 5-15 parts by weight of bismuth vanadate and 0.01-0.1 parts by weight of blocked isocyanate to the ethanol solution of niobium pentachloride, and mix evenly to obtain the first mixed solution; keep stirring the first mixed solution, and add 100 parts by weight of the ethanol aqueous solution Drop into the first mixed solution at a speed of 3-10ml / min; add N, N-dimethylformamide, keep stirring the first mixed solution for 30 minutes, and let stand at room temperature to obtain the second mixed solution; after soaking and drying, The dried material is calcined in a muffle furnace at a temperature of 400-500°C to obtain nano-modified niobium oxide. Nano-spectrum long-lasting media has good catalytic effect in dark light and no light conditions.

Description

technical field [0001] The present invention relates to a nano-spectrum long-acting medium that can efficiently decompose organic pollutants under dark light and no light conditions, and also relates to a preparation method of a nano-spectrum long-acting medium that can efficiently decompose organic pollutants under dark light and no light conditions, and also relates to The application of nano-spectral long-acting media that can efficiently decompose organic pollutants under dark and dark conditions in air purification. Background technique [0002] In recent years, with the improvement of people's living standards, people's requirements for interior decoration standards have become higher and higher, and home decoration has become increasingly modernized. However, the problem of indoor air chemical pollution caused by materials and decoration has followed. These chemicals have seriously affected the health of residents, and have attracted great attention from countries aro...

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Problems solved by technology

[0011] In principle, the sealing agent blocks the source of the release of volatile organic compounds, which should be able to completely eliminate the pollution pathways of volatile organic compounds. Avoid wear and tear, and after a period of time, the original sealant will lose its original effect

However, there is a problem of elimination effect in the methods of using elimination agent and capture agent. Although the pollution can be reduced to a certain extent, because the pollution of the indoor environment is affected by many factors such as pollution degree, temperature, and air circulation, the elimination reaction is often difficult. Thoroughly, it is difficult to achieve the desired effect of eliminating volatile organic compounds

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