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Ferrate piezoelectric catalytic porous ceramic material as well as preparation method and application thereof

A ferrite piezoelectric, porous ceramic technology, applied in chemical instruments and methods, separation methods, physical/chemical process catalysts, etc., can solve the problems of increasing costs, increasing secondary greenhouse gas emissions, etc. Stable, simple and easy-to-prepare effect

Inactive Publication Date: 2020-04-28
苏州尼普环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, methods such as spraying method, thermal storage combustion method (RTO), catalytic combustion method (RCO) and zeolite runner method all require additional energy supply, which not only increases the cost, but also increases the emission of secondary greenhouse gases.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] The embodiment of the present invention also provides a method for preparing a ferrite piezoelectric catalytic porous ceramic material, which includes the following steps:

[0032] Step 1: Provide a ferrite solution with a molar mass ratio of bismuth ions and positive trivalent cations of 1:1, and immerse the porous ceramic matrix in the ferrite solution to fully adsorb iron ions and positive trivalent cations, and then undergo adsorption treatment The porous ceramic substrate is placed in NaOH solution and soaked for 3-5h;

[0033] Step 2: The porous ceramic substrate is processed 3-10 times in accordance with the method of Step 1, and then reacted for 4-12h at a temperature of 450-650℃;

[0034] Step 3: Repeat the operations of Step 1 and Step 2 until the iron ions and positive trivalent cations are all adsorbed on the surface and inside of the porous ceramic matrix to prepare the ferrite piezoelectric catalytic porous ceramic material.

[0035] Further, the concentration of ...

Embodiment 1

[0043] Step 1: Provide a ferrite solution with a molar mass ratio of iron ions to bismuth ions of 1:1, and soak the porous ceramic matrix in the ferrite solution to fully adsorb iron and bismuth ions, and then remove the porous after adsorption treatment The ceramic substrate is placed in 300mL 1.0mol / L NaOH solution and soaked for 3h.

[0044] Step 2: The porous ceramic substrate is processed for 5 times in accordance with the method of Step 1, and then reacted for 18 hours at a temperature of 450°C.

[0045] Step 3: Repeat the operations of Step 1 and Step 2 until the iron ions and bismuth ions are all adsorbed on the surface and inside of the porous ceramic substrate to prepare the piezoelectric catalytic porous ceramic material.

Embodiment 2

[0047] Step 1: Provide a ferrite solution with a molar mass ratio of iron ions to bismuth ions of 1:1, and soak the porous ceramic matrix in the ferrite solution to fully adsorb iron and bismuth ions, and then remove the porous after adsorption treatment The ceramic substrate is placed in 300mL 1.0mol / L NaOH solution and soaked for 3h.

[0048] Step 2: The porous ceramic substrate is processed for 5 times in accordance with the method of Step 1, and then reacted for 8 hours at a temperature of 650°C.

[0049] Step 3: Repeat the operations of Step 1 and Step 2 until the iron ions and bismuth ions are all adsorbed on the surface and inside of the porous ceramic substrate to prepare the piezoelectric catalytic porous ceramic material.

[0050] The piezoelectric catalytic porous ceramic materials prepared in Examples 1 to 2 are placed at the tuyere to achieve the purpose of air purification.

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Abstract

The invention provides a ferrate piezoelectric catalytic porous ceramic material, a preparation method and an application thereof, the ceramic material comprises a porous ceramic matrix and catalyticunits with piezoelectric effect attached to the surface and the interior of the matrix, the catalytic units at least comprise ferrate, and the ferrate material comprises iron ions and positive trivalent cations. The ferrite piezoelectric catalytic porous ceramic material provided by the invention has the piezoelectric effect, and can efficiently degrade volatile organic compounds under the actionof wind energy, mechanical energy or sound wave energy. When used for an industrial pulse dust collector, the product can simultaneously remove dust and toxic and harmful gases. The activated carbon adsorbent is applied to an air purifier and an air conditioner, energy does not need to be additionally provided, secondary greenhouse gas emission is avoided, and the problem that activated carbon needs to be frequently replaced after adsorption saturation is achieved is solved. The material is stable in performance, reusable and low in cost, and the preparation method is simple, easy to implement, green and environmentally friendly.

Description

Technical field [0001] The invention relates to a ferrite piezoelectric catalytic porous ceramic material, in particular to a ferrite piezoelectric catalytic porous ceramic material, a preparation method and its application in air purification, and belongs to the technical field of environmental protection. Background technique [0002] The prior art methods for air purification include activated carbon adsorption, photocatalytic oxidation, and low-temperature plasma oxidation. The activated carbon adsorption method is easy to reach adsorption saturation, and must be replaced after a certain period of time, which brings difficulties to subsequent processing. The industrial volatile organic compounds (VOCs) are degraded by spraying method, regenerative combustion method (RTO), catalytic combustion method (RCO) and zeolite runner method. However, methods such as spray method, regenerative combustion method (RTO), catalytic combustion method (RCO) and zeolite runner method all requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/843B01D53/86B01D53/72
CPCB01J23/8437B01D53/8687B01D2257/708B01D2255/806
Inventor 梁静刘守清
Owner 苏州尼普环境科技有限公司
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