Air purification composite catalyst material and preparation method thereof

A composite catalyst and air purification technology, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of difficult-to-apply purification components for indoor and outdoor air, no multi-function, single purification and degradation of harmful gases and other problems, to achieve excellent catalytic performance, good purification effect and long service life

Inactive Publication Date: 2017-10-13
NINGBO TAIAN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It only has a single purification and degradation of harmful gases, and does not have other multi-functions, so it is difficult to apply to purify indoor and outdoor air with complex components

Method used

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  • Air purification composite catalyst material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Add 15.8g of potassium permanganate and 22.3g of manganese sulfate tetrahydrate in sequence to 305g of pure water, stir well until completely dissolved, react at 95°C for 1 hour, then transfer the solution to a closed reaction kettle at 100°C and 2 MPa After reacting for 20 hours, take it out, wash it, and filter to obtain the catalyst filter residue for use. The dried coconut shell of 41.4g (according to reports, the carbon content of dry coconut shell is 21%) is broken and immersed in the silver nitrate solution of 500mL5mol / L, takes out after soaking 30h under the condition of 0 ℃, puts into In a high-temperature furnace at 440°C, under the protection of a nitrogen (0.2 L / min) atmosphere, the activated carbon with silver was obtained by calcining for 20 hours. Mix the manganese dioxide catalyst filter residue prepared above with silver-attached biomass activated carbon and add 32.6g of water, then put it into a ball mill, add 1mm zirconia balls and ball mill for 10h ...

Embodiment 2

[0043] Add 14.2g of sodium permanganate and 14.35g of manganese sulfate hexahydrate in sequence to 571g of pure water, stir well until completely dissolved, react at 50°C for 10h, and then transfer the solution to a closed reaction kettle at 150°C and 1.5 MPa After reacting for 10 hours, take it out, wash it, and filter to obtain the catalyst filter residue for use. Immerse 47.2g of porous silica powder into 500mL of 3mol / L silver sulfate solution, take it out after immersion at 50°C for 12h, put it into a high-temperature furnace at 800°C, The silver-attached porous silica material was obtained after calcining for 6 hours under the protection of atmosphere. Mix the manganese dioxide catalyst filter residue prepared above with silver-coated porous silica and add 413.3g of water, then put it into a ball mill, add 5mm zirconia balls and ball mill for 1h under the condition of 1000r / min to obtain a solid The content is 5% of the mixed suspension; then the above suspension is dri...

Embodiment 3

[0046] Add 22.05g of lithium permanganate and 9.9g of manganese chloride tetrahydrate in turn to 1600g of pure water, stir well until completely dissolved, react at 0°C for 30h, and then transfer the solution to a closed reaction kettle at 200°C and 0.5 MPa After 1 hour of reaction in the middle, take it out, wash it, and filter to obtain the catalyst filter residue for later use. Immerse 80.24g of porous alumina into 500mL of 1mol / L silver sulfate solution, take it out after immersing at 70°C for 6h, put it into a high-temperature furnace at 1200°C, and protect it under the atmosphere of helium (gas flow of 3L / min) After calcining for 1 hour, a silver-attached porous alumina material was obtained. Mix the above-prepared manganese dioxide catalyst filter residue with silver-coated porous alumina and add 110.7g of water, then put it into a ball mill, add 3mm zirconia balls and ball mill for 15 hours under the condition of 1200r / min to obtain the solid content It is a 20% mixed...

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Abstract

The present invention discloses an air purification composite catalyst material and a preparation method thereof. The preparation method comprises: adding an oxidizing agent and a MnII salt in water, stirring until completely dissolving, and carrying out a precipitation reaction to obtain a mixed solution containing a precursor; adding the mixed liquid to a reaction kettle, carrying out a high temperature and high pressure reaction, washing after the reaction, and filtering to obtain manganese dioxide filter residue so as to be spare; soaking an inorganic porous material in a silver salt solution, carrying out an adsorption reaction, filtering, and calcining under the protection of nitrogen or inert gas to obtain a silver supported inorganic porous material; and carrying out liquid phase ball mill mixing on the manganese dioxide filter residue and the silver supported inorganic porous material to obtain a suspension, and carrying out spray drying to obtain the spherical air purification composite catalyst material.

Description

technical field [0001] The invention relates to a catalyst material and a preparation method thereof, in particular to an air-purifying composite catalyst material and a preparation method thereof. Background technique [0002] At this stage, modern civilization has entered a stage of rapid development, and air pollution is becoming more and more serious. These pollutants are mainly produced and distributed in a wide range of spaces such as industrial areas, automobiles, ships and other vehicles, and living rooms. It can be said that pollution exists everywhere. This indoor and outdoor pollution seriously affects people's physical and mental health. [0003] In response to the increasingly serious air pollution, a variety of specific products have been produced. At present, most air purification products on the market only have filter materials, and their function is only to remove dust; only a few products have added purification filters made of inorganic porous adsorption...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/68B01J35/08B01J35/10B01J37/02B01D53/86
CPCB01J23/688A61L9/014A61L9/16B01D53/86B01J35/08B01J35/10B01J37/0045B01J37/0234B01J37/0236B01J2220/4806
Inventor 黄建国刘玉桂常金虎
Owner NINGBO TAIAN NEW MATERIAL TECH CO LTD
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