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Mn-C catalytic material based on MOFs as well as preparation method and application thereof

A catalytic material, mn-c technology, applied in the field of catalysis, can solve the problems of reduced electron density and reduced catalytic ability of graphite layer, and achieve the effects of remarkable ozone removal performance, low cost and wide application prospects

Pending Publication Date: 2020-07-31
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as the number of cycles increases, the basic groups on the carbon surface continue to be consumed, acidic oxygen-containing groups such as phenolic hydroxyl groups, carboxyl groups, and carbonyl groups continue to accumulate, and the electron density of the graphite layer decreases, thereby reducing the catalytic ability of the system.

Method used

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  • Mn-C catalytic material based on MOFs as well as preparation method and application thereof
  • Mn-C catalytic material based on MOFs as well as preparation method and application thereof
  • Mn-C catalytic material based on MOFs as well as preparation method and application thereof

Examples

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Embodiment 1

[0025] A kind of preparation method of the Mn-C catalytic material based on MOFs, concrete steps are as follows:

[0026] (1) Preparation of Mn-MOFs: 3.0mmol0.5937gMnCl 2 4H 2 O was dissolved in 5 mL distilled water, 1.0 mmol H 3 BTC was dissolved in 5.0 mL of DMF, and the two solutions were mixed slowly. Move the mixed solution to a polytetrafluoroethylene-lined reaction kettle, heat up to 120°C at a rate of 5°C / min, keep at 120°C for 96 hours, cool to room temperature, and wash with absolute ethanol and deionized water at 4000r / min. The crystals were washed several times (firstly with absolute ethanol for 3 times, then with deionized water for 3 times), and then freeze-dried to obtain white powder Mn-MOFs.

[0027] (2) Preparation of Mn-C catalytic material: heating the Mn-MOFs described in (1) in a tube furnace with temperature control. Weigh an appropriate amount of Mn-MOFs and place it in a quartz boat. Under a nitrogen atmosphere, heat up to 500°C at a rate of 5°C / mi...

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Abstract

The invention discloses an Mn-C catalytic material based on MOFs as well as a preparation method and application thereof. A main body part of the Mn-C catalytic material is C, the structure is a three-dimensional porous skeleton structure, and Mn atoms are uniformly loaded on a C framework. The preparation method comprises the steps that Mn-MOFs are prepared through a hydrothermal method, and Mn-Cis prepared through Mn-MOFs carbonization. Compared with a traditional catalyst, the Mn-C retains the framework of MOFs, the specific surface area is large, Mn atoms are uniformly dispersed on the Cframework, sufficient contact with a catalyzed substance is facilitated, the catalytic effect is enhanced, and excellent hydrophobic performance is achieved. Mn-C is further loaded on coarse-effect filter cotton and can be directly used for an air purifier.

Description

technical field [0001] The invention belongs to the technical field of catalysis, and in particular relates to a MOFs-based Mn-C catalytic material and a preparation method and application thereof. Background technique [0002] Tropospheric ozone is a very harmful pollutant. Long-term exposure to low-concentration ozone can lead to skin aging and cardiovascular diseases. There are even reports that ozone pollution is also associated with a high incidence of mental illness. Modern people live indoors most of the time, and indoor ozone mainly comes from the input of outdoor ozone and the emission of indoor ozone sources. Indoor ozone not only directly endangers human health, but also continues to react with interior decoration materials, making originally non-volatile organic compounds into volatile organic compounds, further endangering human health. [0003] Catalytic decomposition at room temperature is an effective method to deal with indoor ozone pollution, and it is als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/34B01J35/10B01D53/86B01D53/66
CPCB01J23/34B01D53/8675B01D2259/4508B01J35/615
Inventor 许琦丁静亚程峰王白林陈冬斌
Owner YANCHENG INST OF TECH
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