Deodorant and preparation method thereof

Abstract

The invention discloses a deodorant and a preparation method thereof. The deodorant is prepared from a carrier and a metal oxide which is limited into a carrier porous channel; the carrier is at leastone of mesoporous carbon, macroporous carbon and hierarchical porous carbon; and the metal oxide is at least one of tungsten trioxide, vanadic oxide, molybdenum trioxide, niobium pentaoxide, copper oxide, cobaltosic oxide, manganese dioxide, iron oxide, cerium dioxide and dilanthanum trioxide. The preparation method comprises the following steps of dispersing nitrate or acetate, corresponding tothe metal oxide, in a solvent as a precursor, then adding the carrier, performing ultrasonic dispersion and filtering, drying a solid product, putting the solid product at a protective atmosphere, andperforming roasting for 3-5h at the temperature of 300-600 DEG C. The deodorant provided by the invention has higher removal activity to sulfur-containing compounds such as H2S, mercaptan and sulfurether, has better broad-spectrum property and is reproducible.

Description

technical field [0001] The invention relates to a deodorant and a preparation method thereof. Background technique [0002] Sewage treatment plants, garbage dumps, farms and other places generally have odor pollution problems, which have a great impact on the surrounding ecological environment, and will also cause serious harm to people's health, causing people to experience olfactory disorders, nausea, headaches, cancer, and distortion and other symptoms. With the increasing requirements of environmental protection, the problem of odor pollution has been widely concerned and highly valued by people. The research on deodorization is of great significance and has broad application prospects. [0003] The composition of the odor is complex and difficult to control. h 2 Sulfur-containing compounds such as S, mercaptan, and sulfide are the main components of odor, so desulfurization and deodorization are the focus of odor pollution control. Desulfurization and deodorization ...

AI Technical Summary

Problems solved by technology

Although the above two deodorants can achieve a certain deodorizing effect, they cannot be regenerated, and the cost of manufacture and use is high.

[0005] CN 101385864A discloses a deodorant obtained by adhering copper compounds and manganese compounds on the surface of activated carbon. The deodorant can absorb and remove methyl mercaptan, acetaldehyde, ammonia, acetic acid, etc., but due to the deodorization The activated carbon used in the deodorant is microporous carbon, and the pores on the microporous carbon are easily blocked due to the adsorption of malodorous gases, which eventually causes the deodorant to lose its deodorizing effect

[0006] The current desulfurization and deodorants are mainly for H 2 S has a good removal effect, but the removal effect on mercaptan or thioether compounds is not good

In addition, the oxidation products of sulfur-containing compounds will be deposited on the deodorant, which will easily cause the deodorant to lose its deodorizing effect and make it difficult to regenerate the deodorant

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