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A ferroelectric-tourmaline plasma catalyst, preparation and application

A plasma and tourmaline technology, applied in the removal of volatile organic pollutants, ion catalyst materials and their preparation, can solve the problems of high operating costs, secondary pollution, long cycle, etc., to improve the removal rate, use The effect of simple process and simple operation

Active Publication Date: 2016-03-02
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional VOCs purification technologies include catalytic combustion, membrane separation, condensation, absorption and adsorption, and biological filtration, etc., but they have disadvantages such as large investment, long cycle, and high operating costs.
[0003] By-products, such as ozone and nitrogen oxides, are produced during the traditional plasma degradation of pollutants, causing secondary pollution

Method used

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  • A ferroelectric-tourmaline plasma catalyst, preparation and application
  • A ferroelectric-tourmaline plasma catalyst, preparation and application
  • A ferroelectric-tourmaline plasma catalyst, preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Take a certain amount of tourmaline powder, put it in a beaker, use deionized water and hydrochloric acid solution to ultrasonically disperse for 1 hour, let it stand for 12 hours, then wash the powder with deionized water several times until it is neutral, filter it with suction, and place it in Dry in the oven for later use;

[0030] (2) Take a certain amount of ferroelectric powder, put it in a beaker, disperse it ultrasonically with hydrochloric acid solution for 1 hour, let it stand for 12 hours, wash the powder several times with deionized water until neutral, filter it with suction, and dry it for later use;

[0031] (3) Place the pretreated ferroelectric material and tourmaline material in a mortar and grind them repeatedly;

[0032] (4) Weigh the ground barium titanate and ferroelectric material according to their mass ratio of 90%:10%, respectively, put the weighed ferroelectric material into a beaker, and add a certain amount of deionized water , the mix...

Embodiment 2

[0034] (1) Take a certain amount of tourmaline powder, put it in a beaker, use deionized water and hydrochloric acid solution to ultrasonically disperse for 1.5 hours, let it stand for 12 hours, then wash the powder with deionized water several times to neutrality, suction filter, and place Dry in an oven for later use;

[0035] (2) Take a certain amount of ferroelectric powder, put it in a beaker, disperse it ultrasonically with hydrochloric acid solution for 1.5 hours, let it stand for 12 hours, wash the powder with deionized water several times until neutral, filter it with suction, and dry it for later use;

[0036] (3) Place the pretreated ferroelectric material and tourmaline material in a mortar and grind them repeatedly;

[0037] (4) Weigh the ground barium titanate and ferroelectric material according to their mass ratio of 80%: 20%, respectively, put the weighed ferroelectric material in a beaker, and add a certain amount of deionized water , the mixed solution was ...

Embodiment 3

[0039] (1) Take a certain amount of tourmaline powder, put it in a beaker, use deionized water and hydrochloric acid solution to ultrasonically disperse for 1 hour, let it stand for 12 hours, then wash the powder with deionized water several times until it is neutral, filter it with suction, and place it in Dry in the oven for later use;

[0040] (2) Take a certain amount of ferroelectric powder, put it in a beaker, disperse it ultrasonically with hydrochloric acid solution for 1.5 hours, let it stand for 12 hours, wash the powder with deionized water several times until neutral, filter it with suction, and dry it for later use;

[0041] (3) Place the pretreated ferroelectric material and tourmaline material in a mortar and grind them repeatedly;

[0042] (4) Weigh the ground barium titanate and ferroelectric material according to their mass ratio of 70%: 30%, respectively, put the weighed ferroelectric material in a beaker, and add a certain amount of deionized water , the m...

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Abstract

The invention discloses a ferroelectric-tourmaline plasma catalyst as well as a preparation and an application thereof, belongs to the technical field of plasma catalysts, particularly relates to a ferroelectric-tourmaline plasma catalyst material and a preparation method thereof and can be used for removing volatile organic contaminants. The preparation of the catalyst comprise the following steps: preheating a tourmaline material and a ferroelectric material, performing ultrasonic dispersion, washing, performing suction filtration and drying, weighing the two materials according to a certain mass ratio, adding a certain amount of deionized water into the weighed ferroelectric material, after performing the ultrasonic dispersion, adding into the weighed tourmaline material, stirring, drying and roasting to obtain a compound catalyst. The process is simple, the materials are low in price, the preparation conditions are mild, and the operation is simple, so that the ferroelectric-tourmaline plasma catalyst is easy for industrialized promotion and marketization. In the preparation process, by-products having pollution to the environment are not generated in the preparation process, the pollution is avoided; the whole process is suitable for requirements of sustainable development and is a novel environmental protection technology.

Description

technical field [0001] The invention belongs to the technical field of plasma catalysts, in particular to a ferroelectric-tourmaline plasma catalyst material and a preparation method thereof, which can be used for the removal of volatile organic pollutants. Background technique [0002] With the development of the economy and the improvement of people's awareness of environmental protection, a large number of volatile organic pollutants (VOCs) are emitted from industrial production, transportation and daily life. These harmful substances seriously affect people's bodies due to their toxicity or foul smell. Health and the surrounding atmospheric environment have attracted the attention of countries all over the world. Traditional VOCs purification technologies include catalytic combustion, membrane separation, condensation, absorption adsorption, and biological filtration, etc., but they have disadvantages such as large investment, long cycle, and high operating costs. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/78B01D53/86B01D53/44B01D53/72
Inventor 梁文俊王爱华李坚马琳
Owner BEIJING UNIV OF TECH