Catalyst used for degrading formaldehyde wastewater, preparation method and application thereof

A formaldehyde wastewater and catalyst technology, applied in the direction of catalyst activation/preparation, chemical instruments and methods, heterogeneous catalyst chemical elements, etc., can solve the problems of unstable carrier structure, insufficient active sites, low specific surface area, etc., and achieve change Electron cloud density, solution to recycling, and the effect of large specific surface area
CN107737594AActive Publication Date: 2018-02-27SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2018-02-27

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Abstract

The invention discloses a catalyst used for degrading formaldehyde wastewater, a preparation method and application thereof. The catalyst is expressed by a general formula M / HMO, wherein M is an active ingredient, HMO is a novel porous manganese dioxide carrier, and the mass ratio of the mole number of M to HMO is (1 to 5): 100. The novel porous MnO2 carrier which is large in specific surface areaand high in active sites and is capable of playing a synergistic effect with the active ingredient to catalytically oxidizing and degrading formaldehyde wastewater and an efficient catalyst capable of stably degrading formaldehyde wastewater at a room temperature condition are developed, the operating conditions are further optimized while relatively high formaldehyde degradation rate is maintained, and the catalyst has important practical significance.
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Description

technical field

[0001] The invention relates to a catalyst and its preparation method and application, in particular to a catalyst for degrading formaldehyde waste water and its preparation method and application. Background technique

[0002] Formaldehyde is an important industrial raw material and a commonly used reagent in biological and medical experiments. It has a wide range of uses, but it is highly toxic to humans and other animals. Formaldehyde wastewater mainly comes from the production process of organic synthesis, organic rubber, paint, paint, plastic, leather and so on. Formaldehyde is highly toxic, with a lethal dose of 140mg / Kg. If humans drink water polluted by formaldehyde for a long time, it will cause dizziness, anemia and various neurological diseases. Therefore, the treatment of formaldehyde waste liquid is highly valued.

[0003] At present, the technology of formaldehyde degradation is in the research stage, mainly including adsorption method, steam s...

Claims

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