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Preparation method of structured catalyst for catalytic oxidation of formaldehyde, structured catalyst obtained therethrough, and application of structured catalyst

A structured catalyst and catalytic oxidation technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc. The effect of good brittleness, improving utilization rate and saving economic losses

Inactive Publication Date: 2018-12-18
EAST CHINA UNIV OF SCI & TECH
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  • Claims
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Problems solved by technology

[0005] In order to solve the problem that the low-concentration formaldehyde cannot be eliminated in the above-mentioned prior art, the present invention aims to provide a preparation method of a structured catalyst for catalyzing the oxidation of formaldehyde, the structured catalyst obtained therefrom and its application

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  • Preparation method of structured catalyst for catalytic oxidation of formaldehyde, structured catalyst obtained therethrough, and application of structured catalyst
  • Preparation method of structured catalyst for catalytic oxidation of formaldehyde, structured catalyst obtained therethrough, and application of structured catalyst
  • Preparation method of structured catalyst for catalytic oxidation of formaldehyde, structured catalyst obtained therethrough, and application of structured catalyst

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Embodiment Construction

[0024] Below in conjunction with the drawings, preferred embodiments of the present invention are given and described in detail.

[0025] The preparation method according to the present invention at first includes providing an integrated boehmite (AlOOH) carrier, and its specific steps include: respectively using 10wt% NaOH solution and 10wt% HNO 3 After the solution pre-treats the aluminum mesh or aluminum plate for 4 minutes and 2 minutes; immerse the pre-treated aluminum mesh or pre-treated aluminum plate in an anodizing tank for anodic oxidation to obtain an alumina mesh or aluminum plate, specifically, pre-treated aluminum at 20 ° C The net or pre-treated aluminum plate is placed at a current density of 25A / m 2 , anodized in 2-10wt% oxalic acid solution for 8-16h, rinsed with deionized water, and air-dried at room temperature; then roasted at 350°C for 1h, and then hydrated in 70°C deionized water for 60-70min at room temperature After drying for 12 hours, an integrated ...

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Abstract

The invention relates to a preparation method of a structured catalyst for catalytic oxidation of formaldehyde. The method comprises the following steps: S1, providing an integrated boehmite carrier;and S2, impregnating the integrated boehmite carrier in a Fe(NO3)3 precursor solution, drying the impregnated integrated boehmite carrier to obtain a Fe-supported integrated boehmite, impregnating theFe-loaded boehmite in a H2PtCl6 solution, drying the impregnated Fe-loaded boehmite to obtain Fe and Pt supported boehmite, reducing the Fe and Pt supported boehmite by a liquid phase reduction process, and drying the reduced Fe and Pt supported boehmite to obtain the structured catalyst. The invention also provides the structured catalyst obtained through the preparation method. The invention further provides an application of the structured catalyst. The structured catalyst can rapidly and effectively catalytically oxidize high-concentration of formaldehyde at room temperature, and also cancatalytically oxidize low-concentration formaldehyde.

Description

technical field [0001] The invention relates to the technical field of catalysts and environmental protection, in particular to a method for preparing a structured catalyst for catalyzing the oxidation of formaldehyde, the structured catalyst obtained therefrom and applications thereof. Background technique [0002] The problem of indoor formaldehyde pollution has gradually attracted people's attention in recent years. Formaldehyde is recognized as carcinogenic and teratogenic shape material by United Nations Environmental Health Organization, is one of the allergen of generally acknowledging and strong mutagen. In order to meet people's increasingly higher pursuit of health, the control of indoor formaldehyde pollution is imminent. [0003] At present, there are mainly ventilation methods, plant purification methods, low-temperature plasma methods, normal temperature adsorption methods, and photocatalytic oxidation methods to control indoor formaldehyde pollution. Indoor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89B01D53/86B01D53/72
CPCB01D53/8668B01J23/8906
Inventor 张琪孙诗白
Owner EAST CHINA UNIV OF SCI & TECH
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