Liquid catalyst for room-temperature catalytic ozonolysis as well as preparation method and application thereof

Abstract

A liquid catalyst for room-temperature catalytic ozonolysis is disclosed. The catalyst is prepared by the following method: dissolving metal salt in water, adding a complexing agent and a surfactant,and uniformly stirring to obtain a mixed solution; and stirring the obtained mixed solution at a temperature in a range of room temperature to 95 DEG C for 0-40 minutes, adding a solvent, crystallizing at 120-200 DEG C for 1-8 hours, cooling to room temperature, carrying out suction filtration, filtering out solid, and dispersing the solid in the solvent to obtain the catalyst. The process is simple, the cost is low, and the application range is wide. The prepared active spraying liquid does not need roasting, theoretically, atomization spraying loading can be flexibly carried out on the surfaces of objects in any shape and made of any material, the objects can be endowed with the ozone catalytic decomposition capacity after drying, the space is fully utilized to allow ozone to be in fullcontact with a catalytic material as much as possible, so that environmental ozone is efficiently decomposed, and the purpose of treating ozone pollution is achieved.

Description

technical field [0001] The invention relates to a liquid catalyst for catalyzing ozone decomposition at room temperature, a preparation method and application thereof. Background technique [0002] Air is an essential substance that human beings cannot live without for a moment, and its quality directly affects human production and life. In recent years, the problem of excessive ozone in my country has become increasingly prominent, and it has become another important regional air pollutant after PM2.5. As a strong oxidizing gas, ozone has a corrosive effect on human skin and eyes, and can strongly stimulate the mucous membrane tissue of the body. When the concentration exceeds 1×10 -7 (volume ratio) will cause discomfort to the human body, leading to cardiopulmonary problems such as asthma, bronchitis, heart disease, and further increase in concentration may even lead to death. In addition, ozone can also cause damage to the ecological environment, for example, causing ne...

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Problems solved by technology

[0005]Aiming at the deficiencies existing in the catalytic decomposition of ambient ozone by catalysts with conventional structures, our solution is to design and synthesize stable high-activity, high-specific surface metal oxide liquid catalysts, Through the atomization and spraying loading method, a uniformly dispersed and firm high-activity catalyst film is formed on the surface of a support with any structure, so that it is not limited by the form of the support, and the support with any shape and structure can be turned into a catalyst, making full use of the reaction space and effectively Improve the contact surface between ambient ozone and catalyst, improve catalytic efficiency, this is a new environmental ozone treatment program

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