CN105080615A - Adsorption catalyst capable of removing formaldehyde quickly and preparing method thereof - Google Patents
Adsorption catalyst capable of removing formaldehyde quickly and preparing method thereof Download PDFInfo
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- CN105080615A CN105080615A CN201510468066.8A CN201510468066A CN105080615A CN 105080615 A CN105080615 A CN 105080615A CN 201510468066 A CN201510468066 A CN 201510468066A CN 105080615 A CN105080615 A CN 105080615A
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Abstract
The invention discloses adsorption catalyst capable of removing formaldehyde quickly. The adsorption catalyst comprises, by weight, 70-80 parts of modified medical stone powder, 10-20 parts of sepiolite powder, 5-10 parts of zeolite powder, 3-8 parts of bentonite, 80-95 parts of sucrose solutions, 20-40 parts of cobalt nitrate water solutions, 30-50 parts of silver nitrate water solutions and 40-50 parts of laurinol sulphate ammonium salt water solutions. The invention further discloses a preparing method of the adsorption catalyst capable of removing formaldehyde quickly. The preparing method is easy to implement, raw materials are easy to obtain, the obtained adsorption catalyst capable of removing formaldehyde is high in capacity of adsorbing formaldehyde, the formaldehyde can be decomposed while being adsorbed, and the formaldehyde removal effect is good.
Description
Technical field
The present invention relates to formaldehyde absorbing catalysis technical field, particularly relate to a kind of quick adsorption catalyst except formaldehyde and preparation method thereof.
Background technology
According to interrelated data display, when formaldehyde content in indoor air reaches 0.06-0.07mg/m
3time, slight asthma will be there is in children; Its concentration is 0.1mg/m
3time, just there are peculiar smell and sense of discomfort; Reach 0.5mg/m
3time, stimulate eyes, cause and shed tears; Reach 0.6mg/m
3time, throat discomfort or pain can be caused; Concentration more Gao Shike causes nausea vomiting, coughs uncomfortable in chest, even pulmonary edema of panting; Reach 30mg/m
3time, meeting causing death immediately.The toxic manifestations of formaldehyde is to the skin of people and the intense stimulus effect of respiratory apparatus mucous membrane, and to human central nervous system, especially have damage to the organs of vision, serious can be carcinogenic.
Processing method for formaldehyde has a lot, as absorption method, chemical method, photocatalytic method etc., wherein absorption method application is comparatively extensive, conventional adsorbent mainly contains active carbon, silica gel, zeolite etc., but is subject to the restriction of aperture and hole permeability, and current sorbing material used is all less for the adsorbance of gas molecules, and research finds, though formaldehyde scavenger fast and effeciently can remove indoor formaldehyde, easily cause secondary pollution, not there is persistence.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of quick adsorption catalyst except formaldehyde and preparation method thereof, method is simple, raw material is easy to get, gained is fast except the adsorption catalyst PARA FORMALDEHYDE PRILLS(91,95) high adsorption capacity of formaldehyde, oxidation of formaldehyde can be decomposed, except effect of formaldehyde is good while absorption.
It is a kind of fast except the adsorption catalyst of formaldehyde that the present invention proposes, its raw material comprises by weight: modification medical stone powder 70-80 part, sepiolite powder 10-20 part, zeolite powder 5-10 part, bentonite 3-8 part, 80-95 part sucrose solution, 20-40 part cobalt nitrate aqueous solution, 30-50 part silver nitrate aqueous solution, 40-50 part laruyl alcohol sulfate ammonium salt aqueous solution.
Preferably, the concentration of cobalt nitrate aqueous solution is 0.3-0.5mol/L,
Preferably, the concentration of silver nitrate aqueous solution is 0.3-0.5mol/L.
Preferably, the mass fraction of sucrose solution is 40-60wt%.
Preferably, the concentration of the laruyl alcohol sulfate ammonium salt aqueous solution is 1-2mol/L.
Preferably, modification medical stone powder, sepiolite powder and zeolite powder are 300-400 order.
Preferably, the preparation method of modification medical stone powder is as follows: medical stone powder and water are loaded in autoclave and carry out hydro-thermal reaction, and dry, add in potassium permanganate solution and vibrate, filter, drying obtains modification medical stone powder.
Preferably, in the preparation method of modification medical stone powder, the weight ratio of medical stone powder and water is 3-5:6-10.
Preferably, in the preparation method of modification medical stone powder, hydrothermal temperature is 260-285 DEG C, and the hydro-thermal reaction time is 1.5-2.5h.
Preferably, in the preparation method of modification medical stone powder, the weight ratio of medical stone powder and potassium permanganate solution is 3-5:8-12.
Preferably, in the preparation method of modification medical stone powder, the concentration of potassium permanganate solution is 2-3mol/L.
Preferably, in the preparation method of modification medical stone powder, duration of oscillation is 2-4h.
It is above-mentioned fast except the preparation method of the adsorption catalyst of formaldehyde that the present invention also proposes, and comprises the steps:
S1, modification medical stone powder, sepiolite powder, zeolite powder and bentonite added in sucrose solution stir, leave standstill, sinter after filtration, pulverize and obtain mixed material;
S2, cobalt nitrate aqueous solution and silver nitrate aqueous solution mixed obtain mixed solution, again mixed material is added in mixed solution and stir, sinter after leaving standstill, take out, be placed in the laruyl alcohol sulfate ammonium salt aqueous solution after pulverizing again to stir, leave standstill, then drying obtains fast except the adsorption catalyst of formaldehyde.
Preferably, in S1, modification medical stone powder, sepiolite powder, zeolite powder and bentonite are added in sucrose solution and stir, leave standstill 10-12h, be warming up to 420-440 DEG C after filtration, average heating rate is 3-5 DEG C/min, and insulation 3-5h, pulverizes and obtain mixed material.
Preferably, in S2, sinter after leaving standstill 4-6h, sintering temperature is 360-380 DEG C, and sintering time is 4-6h.
In the present invention, modification medical stone powder adopts medical stone powder and water to carry out hydro-thermal reaction, get through the micropore that in medical stone powder, estrangement is different originally, micropore volume is increased, and partial pore under high pressure can be made to be expanded into mesopore, average pore size is caused to increase, add potassium permanganate solution vibration again and carry out oxidation modification, Surface oxygen-containing groups of the present invention is significantly increased, the adsorption capacity of PARA FORMALDEHYDE PRILLS(91,95) can be strengthened; Modification medical stone powder, sepiolite powder, zeolite powder and bentonite are added in sucrose solution as adsorbent, sucrose molecule is fully entered in the meso-hole structure of adsorbent, then sucrose molecule is made at high temperature to be transformed into active carbon by sintering, and spread in the meso-hole structure of adsorbent with carbon membrane form, increase the contact area of active carbon and formaldehyde, improve its utilization rate, shorten the adsorption and diffusion distance of formaldehyde molecule, and then improve adsorption rate; Mixed material is added in the mixed solution of cobalt nitrate and silver nitrate, be attached in the hole of adsorbent and active carbon by sintering generation cobalt oxide and silver oxide, and the potassium permanganate in modification medical stone powder at high temperature decomposes generation manganese oxide, all oxides coordinate as catalyst, make the formaldehyde of adsorbent and charcoal absorption be oxidized to water and carbon dioxide, reach the effect except formaldehyde; The present invention adopts the further modification of the laruyl alcohol sulfate ammonium salt aqueous solution, at the present invention surface grafting long chain alkyl group and nitrogen-containing group further, polar functional group of the present invention is increased further, improves the adsorption capacity of PARA FORMALDEHYDE PRILLS(91,95) further.In sum, PARA FORMALDEHYDE PRILLS(91,95) high adsorption capacity of the present invention, can decompose oxidation of formaldehyde, except effect of formaldehyde is good while absorption.
Detailed description of the invention
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
It is a kind of fast except the adsorption catalyst of formaldehyde that the present invention proposes, its raw material comprises by weight: 300 order modification medical stone powders 80 parts, 300 order sepiolite powders 20 parts, 300 order zeolite powders 10 parts, bentonite 3 parts, 95 parts of mass fractions are the sucrose solution of 40wt%, and 40 parts of concentration are the cobalt nitrate aqueous solution of 0.3mol/L, 50 parts of concentration are the silver nitrate aqueous solution of 0.3mol/L, and 50 parts of concentration are the laruyl alcohol sulfate ammonium salt aqueous solution of 1mol/L.
The preparation method of modification medical stone powder is as follows: 5 parts of medical stone powders and 6 parts of water are loaded in autoclave by weight and carry out hydro-thermal reaction, hydrothermal temperature is 285 DEG C, the hydro-thermal reaction time is 1.5h, dry, adding 12 parts of concentration is carry out vibration 4h in the potassium permanganate solution of 2mol/L, filter, drying obtains modification medical stone powder.
It is above-mentioned fast except the preparation method of the adsorption catalyst of formaldehyde that the present invention also proposes, and comprises the steps:
S1, modification medical stone powder, sepiolite powder, zeolite powder and bentonite to be added in sucrose solution and stir, leave standstill 10h, be warming up to 440 DEG C after filtration, average heating rate is 3 DEG C/min, and insulation 5h, pulverizes and obtain mixed material;
S2, cobalt nitrate aqueous solution and silver nitrate aqueous solution mixed obtain mixed solution, again mixed material is added in mixed solution and stir, sinter after leaving standstill 4h, sintering temperature is 380 DEG C, sintering time is 4h, takes out, is placed in the laruyl alcohol sulfate ammonium salt aqueous solution again and stirs after pulverizing, leave standstill 5h, then drying obtains fast except the adsorption catalyst of formaldehyde.
Embodiment 2
It is a kind of fast except the adsorption catalyst of formaldehyde that the present invention proposes, its raw material comprises by weight: 400 order modification medical stone powders 70 parts, 400 order sepiolite powders 10 parts, 400 order zeolite powders 5 parts, bentonite 8 parts, 80 parts of mass fractions are the sucrose solution of 60wt%, and 20 parts of concentration are the cobalt nitrate aqueous solution of 0.5mol/L, 30 parts of concentration are the silver nitrate aqueous solution of 0.5mol/L, and 40 parts of concentration are the laruyl alcohol sulfate ammonium salt aqueous solution of 2mol/L.
The preparation method of modification medical stone powder is as follows: 3 parts of medical stone powders and 10 parts of water are loaded in autoclave by weight and carry out hydro-thermal reaction, hydrothermal temperature is 260 DEG C, the hydro-thermal reaction time is 2.5h, dry, adding 8 parts of concentration is carry out vibration 2h in the potassium permanganate solution of 3mol/L, filter, drying obtains modification medical stone powder.
It is above-mentioned fast except the preparation method of the adsorption catalyst of formaldehyde that the present invention also proposes, and comprises the steps:
S1, modification medical stone powder, sepiolite powder, zeolite powder and bentonite to be added in sucrose solution and stir, leave standstill 12h, be warming up to 420 DEG C after filtration, average heating rate is 5 DEG C/min, and insulation 3h, pulverizes and obtain mixed material;
S2, cobalt nitrate aqueous solution and silver nitrate aqueous solution mixed obtain mixed solution, again mixed material is added in mixed solution and stir, sinter after leaving standstill 6h, sintering temperature is 360 DEG C, sintering time is 6h, takes out, is placed in the laruyl alcohol sulfate ammonium salt aqueous solution again and stirs after pulverizing, leave standstill 3h, then drying obtains fast except the adsorption catalyst of formaldehyde.
Embodiment 3
It is a kind of fast except the adsorption catalyst of formaldehyde that the present invention proposes, its raw material comprises by weight: 380 order modification medical stone powders 73 parts, 370 order sepiolite powders 14 parts, 360 order zeolite powders 6 parts, bentonite 6 parts, 85 parts of mass fractions are the sucrose solution of 55wt%, and 25 parts of concentration are the cobalt nitrate aqueous solution of 0.45mol/L, 35 parts of concentration are the silver nitrate aqueous solution of 0.42mol/L, and 46 parts of concentration are the laruyl alcohol sulfate ammonium salt aqueous solution of 1.8mol/L.
The preparation method of modification medical stone powder is as follows: 3.2 parts of medical stone powders and 9 parts of water are loaded in autoclave by weight and carry out hydro-thermal reaction, hydrothermal temperature is 265 DEG C, the hydro-thermal reaction time is 2.2h, dry, adding 9 parts of concentration is carry out vibration 2.8h in the potassium permanganate solution of 2.8mol/L, filter, drying obtains modification medical stone powder.
It is above-mentioned fast except the preparation method of the adsorption catalyst of formaldehyde that the present invention also proposes, and comprises the steps:
S1, modification medical stone powder, sepiolite powder, zeolite powder and bentonite to be added in sucrose solution and stir, leave standstill 11.2h, be warming up to 425 DEG C after filtration, average heating rate is 4.5 DEG C/min, and insulation 3.8h, pulverizes and obtain mixed material;
S2, cobalt nitrate aqueous solution and silver nitrate aqueous solution mixed obtain mixed solution, again mixed material is added in mixed solution and stir, sinter after leaving standstill 5.5h, sintering temperature is 365 DEG C, sintering time is 5.2h, takes out, is placed in the laruyl alcohol sulfate ammonium salt aqueous solution again and stirs after pulverizing, leave standstill 3.5h, then drying obtains fast except the adsorption catalyst of formaldehyde.
Embodiment 4
It is a kind of fast except the adsorption catalyst of formaldehyde that the present invention proposes, its raw material comprises by weight: 320 order modification medical stone powders 76 parts, 350 order sepiolite powders 18 parts, 340 order zeolite powders 8 parts, bentonite 4 parts, 90 parts of mass fractions are the sucrose solution of 45wt%, and 35 parts of concentration are the cobalt nitrate aqueous solution of 0.35mol/L, 45 parts of concentration are the silver nitrate aqueous solution of 0.38mol/L, and 48 parts of concentration are the laruyl alcohol sulfate ammonium salt aqueous solution of 1.5mol/L.
The preparation method of modification medical stone powder is as follows: 4.5 parts of medical stone powders and 7 parts of water are loaded in autoclave by weight and carry out hydro-thermal reaction, hydrothermal temperature is 280 DEG C, the hydro-thermal reaction time is 1.8h, dry, adding 11 parts of concentration is carry out vibration 3.4h in the potassium permanganate solution of 2.6mol/L, filter, drying obtains modification medical stone powder.
It is above-mentioned fast except the preparation method of the adsorption catalyst of formaldehyde that the present invention also proposes, and comprises the steps:
S1, modification medical stone powder, sepiolite powder, zeolite powder and bentonite to be added in sucrose solution and stir, leave standstill 10.8h, be warming up to 435 DEG C after filtration, average heating rate is 3.5 DEG C/min, and insulation 4.5h, pulverizes and obtain mixed material;
S2, cobalt nitrate aqueous solution and silver nitrate aqueous solution mixed obtain mixed solution, again mixed material is added in mixed solution and stir, sinter after leaving standstill 4.5h, sintering temperature is 375 DEG C, sintering time is 4.8h, takes out, is placed in the laruyl alcohol sulfate ammonium salt aqueous solution again and stirs after pulverizing, leave standstill 4.5h, then drying obtains fast except the adsorption catalyst of formaldehyde.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. one kind is removed the adsorption catalyst of formaldehyde fast, it is characterized in that, its raw material comprises by weight: modification medical stone powder 70-80 part, sepiolite powder 10-20 part, zeolite powder 5-10 part, bentonite 3-8 part, 80-95 part sucrose solution, 20-40 part cobalt nitrate aqueous solution, 30-50 part silver nitrate aqueous solution, 40-50 part laruyl alcohol sulfate ammonium salt aqueous solution.
2., according to claim 1 fast except the adsorption catalyst of formaldehyde, it is characterized in that, the concentration of cobalt nitrate aqueous solution is 0.3-0.5mol/L; Preferably, the concentration of silver nitrate aqueous solution is 0.3-0.5mol/L.
3. the adsorption catalyst fast except formaldehyde according to claim 1 or 2, it is characterized in that, the mass fraction of sucrose solution is 40-60wt%; Preferably, the concentration of the laruyl alcohol sulfate ammonium salt aqueous solution is 1-2mol/L.
4. the adsorption catalyst fast except formaldehyde according to any one of claim 1-3, it is characterized in that, modification medical stone powder, sepiolite powder and zeolite powder are 300-400 order.
5. the adsorption catalyst fast except formaldehyde according to any one of claim 1-4, it is characterized in that, the preparation method of modification medical stone powder is as follows: medical stone powder and water are loaded in autoclave and carry out hydro-thermal reaction, dry, add in potassium permanganate solution and vibrate, filter, drying obtains modification medical stone powder.
6. the adsorption catalyst fast except formaldehyde according to any one of claim 1-5, it is characterized in that, in the preparation method of modification medical stone powder, the weight ratio of medical stone powder and water is 3-5:6-10; Preferably, in the preparation method of modification medical stone powder, hydrothermal temperature is 260-285 DEG C, and the hydro-thermal reaction time is 1.5-2.5h.
7. the adsorption catalyst fast except formaldehyde according to any one of claim 1-6, it is characterized in that, in the preparation method of modification medical stone powder, the weight ratio of medical stone powder and potassium permanganate solution is 3-5:8-12; Preferably, in the preparation method of modification medical stone powder, the concentration of potassium permanganate solution is 2-3mol/L; Preferably, in the preparation method of modification medical stone powder, duration of oscillation is 2-4h.
8. as described in claim 1-7, remove a preparation method for the adsorption catalyst of formaldehyde fast, it is characterized in that, comprise the steps:
S1, modification medical stone powder, sepiolite powder, zeolite powder and bentonite added in sucrose solution stir, leave standstill, sinter after filtration, pulverize and obtain mixed material;
S2, cobalt nitrate aqueous solution and silver nitrate aqueous solution mixed obtain mixed solution, again mixed material is added in mixed solution and stir, sinter after leaving standstill, take out, be placed in the laruyl alcohol sulfate ammonium salt aqueous solution after pulverizing again to stir, leave standstill, then drying obtains fast except the adsorption catalyst of formaldehyde.
9. according to claim 8 fast except the preparation method of the adsorption catalyst of formaldehyde, it is characterized in that, in S1, modification medical stone powder, sepiolite powder, zeolite powder and bentonite are added in sucrose solution and stirs, leave standstill 10-12h, be warming up to 420-440 DEG C after filtration, average heating rate is 3-5 DEG C/min, insulation 3-5h, pulverizes and obtains mixed material.
10. according to claim 8 or claim 9 fast except the preparation method of the adsorption catalyst of formaldehyde, it is characterized in that, in S2, sinter after leaving standstill 4-6h, sintering temperature is 360-380 DEG C, and sintering time is 4-6h.
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| CN108855000A (en) * | 2018-06-25 | 2018-11-23 | 合肥艾飞新材料有限公司 | A kind of preparation method of nano adsorption material |
| CN112715572A (en) * | 2021-01-04 | 2021-04-30 | 河北科利消毒剂有限公司 | Air disinfectant for livestock and poultry houses or vegetable greenhouses |
| CN113274969A (en) * | 2021-05-26 | 2021-08-20 | 广西大学 | Composite material with formaldehyde adsorption function and preparation method thereof |
| CN114602424A (en) * | 2022-04-01 | 2022-06-10 | 无限极（中国）有限公司 | Modified medical stone, modified medical stone carbon rod, modified medical stone-based composite filter element and preparation method thereof |
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| CN114602424A (en) * | 2022-04-01 | 2022-06-10 | 无限极（中国）有限公司 | Modified medical stone, modified medical stone carbon rod, modified medical stone-based composite filter element and preparation method thereof |
| CN114602424B (en) * | 2022-04-01 | 2023-09-29 | 无限极（中国）有限公司 | Modified medical stone, modified medical stone carbon rod, modified medical stone-based composite filter element and preparation method thereof |
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