CN103977755A - Air purifying material with high catalytic oxidation activity - Google Patents
Air purifying material with high catalytic oxidation activity Download PDFInfo
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- CN103977755A CN103977755A CN201410191064.4A CN201410191064A CN103977755A CN 103977755 A CN103977755 A CN 103977755A CN 201410191064 A CN201410191064 A CN 201410191064A CN 103977755 A CN103977755 A CN 103977755A
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Abstract
The invention discloses an air purifying material with a high catalytic oxidation activity. A preparation method of the air purifying material comprises the following steps: 1, adding TiO2 gel prepared through a sol-gel process into a hydrothermal synthesized alpha-MnO2 nanorod solution according to a mass ratio of 1:(1.0-1.4), and filtering the above obtained mixed solution to obtain a filter cake A; 2, dissolving KIO3 in 100DEG C water to prepare a potassium iodate solution with the mass fraction of 15-23%, and mixing with a titanate coupling agent or silicate ester coupling agent modified nano-ZnO2 according to a mass ratio of 1:(15-25) in order to prepare a photocatalyst activator B; and 3, mixing the filter cake A prepared in step 1 with the photocatalyst activator B, tourmalinite powder and a binder according to a mass ratio of 1:(0.15-0.30):(0.20-0.25):(0.25-0.30), uniformly stirring, granulating to form balls or extruding to form strips, and drying to prepare the air purifying material. The material has a strong air purifying capability and can be conveniently applied.
Description
Technical field
The present invention relates to a kind of filtering material, be specifically related to a kind of air filting material.
Background technology
In recent years, air pollution problems inherent is national governments' problem demanding prompt solution always, and sulfide, carbon monoxide (CO) and the nitrogen oxide etc. that in air, exceed standard are the pernicious gases that affects human health; The industries such as the energy, chemical industry, metallurgy, traffic use in the flue gas that fossil fuel (coal, oil, natural gas etc.) discharges and contain a large amount of SO2 and NOx, and atmosphere is caused to severe contamination.In addition, the various dust that mankind's activity produces, the pollution of the solid suspended particles such as sand and dust to surrounding air that also has climatic deterioration to cause, and enter more and more house and public building from all kinds of ornament materials and mouth with the volatile organic pollution of chemicals, causing human settlement to pollute sharply increases.
Investigation shows, the new clothes room of China 90% and 95% new clothes office space exist the VOCs gas pollutant phenomenon that exceeds standard.Because most mankind's activities are carried out indoor, so the harm that indoor environmental pollution causes health of people and quality of the people is very serious.A statistics demonstration of the World Health Organization, the disease burden that indoor environmental pollution causes exceedes outdoor same level pollution and makes cumbrous 6 times.Last century the nineties, what China was caused by indoor environmental pollution every year exceed the quata, and death toll reaches 110,000 people, the outpatient service number that exceeds the quata reaches 130,000 person-times, the emergency treatment number that exceeds the quata reaches 1,500,000 person-times, the economic loss more than $ 10 billion therefore causing.
For adapting to the requirement of people to air quality, various types of air purifiers on market, are there are, generally acknowledged air purification method is mainly to utilize absorption method and electrostatic method to remove pollutant both at home and abroad at present, the most of filtering material that adopts of air purifier that oneself has is removed airborne suspended particulate, adopt the porous materials such as active carbon to carry out the pernicious gas in absorbed air, and produce a certain amount of anion with anion generator.But the adsorption capacity of sorbing material active carbon is all limited, after absorption reaches capacity, just there will be pollutant penetration phenomenon.And not very desirable to the removing effect of indoor major pollutants formaldehyde, acetaldehyde, benzene, VOCs, nitrogen oxide.At this moment, sorbing material is not only lost the characterization of adsorption to pollutant, and the noxious pollutant adsorbing can cause secondary pollution on the contrary, becomes new pollution sources; In the time that adsorbed pollutant is volatile organic matter.
At present both at home and abroad oneself begins one's study and utilizes nano photo-catalytic technology to purify the air of a room.By nano photo-catalytic and adsorbent combination, the characteristic of utilizing the absorption property of adsorbent and nano-photocatalyst pernicious gas can be decomposed at normal temperatures to innocuous gas purifies the air of a room.As: prepare scavenging material etc. with the carrier of active carbon or NACF photocatalyst.But due to only competence exertion effect under the irradiation of ultraviolet light of this class photocatalysis, therefore adopt the current practicality of the material of making in this way not strong, indoor environment is difficult to meet ultraviolet lighting bar and uses, and cost is higher.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of high catalytic oxidation activity material for air purification is provided.
For achieving the above object, the present invention is by the following technical solutions:
A kind of high catalytic oxidation activity material for air purification, it is made up of following preparation method, and concrete preparation method's step is:
1) the TiO2 gel of preparation of sol-gel is added in α-MnO2 nanometer rods solution of Hydrothermal Synthesis, in mixed liquor, TiO2 gel is 1:(1.0～1.4 with α-MnO2 nanometer rods solution quality ratio), mixed liquor is filtered, obtain the filter cake A of moisture content 50%～70%;
2) KIO3 is dissolved in 100 DEG C of water, making mass fraction is 15%～23% potassium iodate solution, and mix with titanate coupling agent or the coupling agent modified nano-ZnO of esters of silicon acis, KIO3 and ZnO mass ratio are 1:(15～25), make photocatalyst activity agent B;
3) by step 1) filter cake A, the photocatalyst activity agent B, tourmaline powder and binding agent 1:(0.15～0.30 in mass ratio that make): (0.20～0.25): mix (0.25～0.30), stir and granulation balling-up or extruding slivering, through 100 DEG C～150 DEG C oven dry, make described material for air purification.
Preferably, described tourmaline is one or more in dravite, iron tourmaline, iron dravite, clang tourmaline.
Preferably, described modified nano-ZnO particle diameter is 20nm～50nm.
Preferably, described binding agent is one or more in active γ-Al2O3, zeolite powder, active recessed soil, kaolin.
Wherein, the method that described collosol and gel is prepared TiO2 has multiple, preferably: first butyl titanate being mixed with absolute ethyl alcohol is 1:(4.0～4.5 by volume) mix, stir and form solution A; Getting volume ratio is 1:(1.0～1.5 again): (0.1～0.5) ionized water, absolute ethyl alcohol and glacial acetic acid mix, and keep pH value 3-4, form solution B; Then, under 40 DEG C of water bath condition by solution A dropwise (speed is at 3mL/min) add in prepared solution B, utilize constant temperature blender with magnetic force to carry out rapid stirring simultaneously, make the hydrolysis of its butyl titanate.Continuous stirring approximately after 2～3.5h, can be made into the transparent TiO2 gel of white after filtration.
Wherein, α-MnO2 nanometer rods preparation method has multiple, preferably: be 1:(1～1.5 by mass ratio respectively): potassium permanganate (KMnO4), manganese acetate (Mn (CH3COO) 24H2O) and the distilled water mix and blend of (6.0～6.5), its mixed solution is proceeded to in teflon-lined reactor, add again distilled water to be adjusted to the 60%-70% of inner liner of reaction kettle volume, sealing, and be positioned in vacuum drying chamber, heat from room temperature, through isothermal reaction, naturally cool to room temperature, can make α-MnO2 nanometer rods;
Reaction principle is:
2KMnO
4+3Mn(CH
3COO)
2→5MnO
2+CH
3COOH+2CH
3COOK+4H
2O
This reaction is made up of two half-reactions:
Mn
2++2H
2O→MnO
2+4H
++2e(E＝1.23V)
MnO4+4H
++3e→MnO
2+2H
2O(E＝1.695V)
Beneficial effect of the present invention is, high catalytic oxidation activity material for air purification of the present invention not only utilizes physical absorption performance that pernicious gas is adsorbed to material surface, can also make to form chemisorbed between pernicious gas and material, and the efficient catalysed oxidn of the mistake of logical oxide, pernicious gas is degraded.This material air detergent power is strong, effect is stablized, can be recycled, without illumination, without heating, applied widely, application is convenient.
Detailed description of the invention
Below in conjunction with specific embodiment, the specific embodiment of the present invention is described further, but the present invention is not limited in following embodiment.
Embodiment 1
Butyl titanate and absolute ethyl alcohol are evenly mixed and made into A liquid for 1:4.4 by volume, again by deionized water, absolute ethyl alcohol and glacial acetic acid by volume for 1:1.3:0.24 is uniformly mixed into mixed liquid B, under 40 DEG C of water bath condition by solution A dropwise (speed is at 3mL/min) add in prepared solution B, in mixed liquor, A liquid and B liquid volume ratio are 2.4:1.Utilize constant temperature blender with magnetic force to carry out rapid stirring simultaneously, make its butyl titanate hydrolysis.After the about 3h of continuous stirring, after filtration, make the transparent TiO2 gel of white.
By potassium permanganate, manganese acetate and water in mass ratio 1:1.4:6.5 uniformly mix, its mixed solution is proceeded to in teflon-lined reactor, add again distilled water to be adjusted to 65% of inner liner of reaction kettle volume, sealing, and be positioned in vacuum drying chamber, be heated to from room temperature temperature required, isothermal reaction certain hour, naturally cool to room temperature, make α-MnO2 nanometer rods.
By 1) make gel, 2) make α-MnO2 nanometer rods in mass ratio 1:1.5 evenly mix, obtaining moisture content through filter pressing is 60% filter cake.
By 3) make filter cake, KIO3, the coupling agent modified nano-ZnO of esters of silicon acis, iron tourmaline powder, kaolin powder in mass ratio 1:0.02:0.20:0.24:0.30 evenly mix; become Φ 2.0mm spherical particles by granulator granulation, and dry and make described material for air purification 120 DEG C of conditions.Its efficiency that purifies air is as table one.
Embodiment 2
Butyl titanate and absolute ethyl alcohol are evenly mixed and made into A liquid for 1:4.2 by volume, again by deionized water, absolute ethyl alcohol and glacial acetic acid by volume for 1:1.2:0.22 is uniformly mixed into mixed liquid B, under 40 DEG C of water bath condition by solution A dropwise (speed is at 3mL/min) add in prepared solution B, in mixed liquor, A liquid and B liquid volume ratio are 2.5:1.Utilize constant temperature blender with magnetic force to carry out rapid stirring simultaneously, make its butyl titanate hydrolysis.After the about 2h of continuous stirring, after filtration, make the transparent TiO2 gel of white.
By potassium permanganate, manganese acetate and water in mass ratio 1:1.5:6.3 uniformly mix, its mixed solution is proceeded to in teflon-lined reactor, add again distilled water to be adjusted to 70% of inner liner of reaction kettle volume, sealing, and be positioned in vacuum drying chamber, be heated to from room temperature temperature required, isothermal reaction certain hour, naturally cool to room temperature, make α-MnO2 nanometer rods.
By 1) make gel, 2) make α-MnO2 nanometer rods in mass ratio 1:1.4 evenly mix, obtaining moisture content through filter pressing is 60% filter cake.
By 3) make filter cake, KIO3, the coupling agent modified nano-ZnO of esters of silicon acis, dravite powder, zeolite powder in mass ratio 1:0.03:0.19:0.23:0.35 evenly mix, by banded extruder be a granulated into Φ 3.0mm, length is 5.0mm cylindrical particle, and dry and make described material for air purification 130 DEG C of conditions.Its efficiency that purifies air is as table one.
Embodiment 3
Butyl titanate and absolute ethyl alcohol are evenly mixed and made into A liquid for 1:4.0 by volume, again by deionized water, absolute ethyl alcohol and glacial acetic acid by volume for 1:1:0.20 is uniformly mixed into mixed liquid B, under 40 DEG C of water bath condition by solution A dropwise (speed is at 3mL/min) add in prepared solution B, in mixed liquor, A liquid and B liquid volume ratio are 2.3:1.Utilize constant temperature blender with magnetic force to carry out rapid stirring simultaneously, make its butyl titanate hydrolysis.After the about 3h of continuous stirring, after filtration, make the transparent TiO2 gel of white.
By potassium permanganate, manganese acetate and water in mass ratio 1:1.5:6 uniformly mix, its mixed solution is proceeded to in teflon-lined reactor, add again distilled water to be adjusted to 60% of inner liner of reaction kettle volume, sealing, and be positioned in vacuum drying chamber, be heated to from room temperature temperature required, isothermal reaction certain hour, naturally cool to room temperature, make α-MnO2 nanometer rods.
By 1) make gel, 2) make α-MnO2 nanometer rods in mass ratio 1:1 evenly mix, obtaining moisture content through filter pressing is 50% filter cake.
By 3) make filter cake, KIO3, titanate coupling agent modified nano-ZnO, iron dravite powder, active recessed soil in mass ratio 1:0.01:0.15:0.2:0.3 evenly mix; become Φ 2.0mm spherical particles by granulator granulation, and dry and make described material for air purification 110 DEG C of conditions.Its efficiency that purifies air is as table one.
Embodiment 4
Butyl titanate and absolute ethyl alcohol are evenly mixed and made into A liquid for 1:4.1 by volume, again by deionized water, absolute ethyl alcohol and glacial acetic acid by volume for 1:1.1:0.21 is uniformly mixed into mixed liquid B, under 40 DEG C of water bath condition by solution A dropwise (speed is at 3mL/min) add in prepared solution B, in mixed liquor, A liquid and B liquid volume ratio are 2.4:1.Utilize constant temperature blender with magnetic force to carry out rapid stirring simultaneously, make its butyl titanate hydrolysis.After the about 2h of continuous stirring, after filtration, make the transparent TiO2 gel of white.
By potassium permanganate, manganese acetate and water in mass ratio 1:1.4:5 uniformly mix, its mixed solution is proceeded to in teflon-lined reactor, add again distilled water to be adjusted to 65% of inner liner of reaction kettle volume, sealing, and be positioned in vacuum drying chamber, be heated to from room temperature temperature required, isothermal reaction certain hour, naturally cool to room temperature, make α-MnO2 nanometer rods.
By 1) make gel, 2) make α-MnO2 nanometer rods in mass ratio 1:1.2 evenly mix, obtaining moisture content through filter pressing is 55% filter cake.
By 3) make filter cake, KIO3, titanate coupling agent modified nano-ZnO, clang tourmaline, active γ-Al2O3 in mass ratio 1:0.02:0.17:0.22:0.34 evenly mix; become Φ 2.5mm spherical particles by granulator granulation, and dry and make described material for air purification 120 DEG C of conditions.Its efficiency that purifies air is as table one.
The filtering material making in above-described embodiment 1～4 is carried out to performance test, test foundation " GB/T18801-2008 air purifier " described experimental situation:
Test instrument equipment: the formaldehyde of 30m3 standard testing laboratory, beautiful ceiling fan, Hygrothermograph, Rec Household Air Purifier KJ701-3 air cleaner, American I nterscan company is analyzed Interscan4160-19.99m.
Purification efficiency: sample is poured out and stirred, claim 220 grams to pack in the plastic cement honeycomb that oneself gets ready, ensure that seal is good, then pack in clearing machine, cover whole clearing machine with polybag; Finally in 30m3 test laboratory, inject a certain amount of detection solution, after heating and within 3 minutes, making it to volatilize completely, close heater, open simultaneously and stir blower fan stirring 5min, its initial concentration is surveyed in sampling, remove the polybag on clearing machine, open purification fan and start timing, record the gas purification situation after 60 minutes.
Its test result is as shown in table 1:
Table 1 test result
Claims (4)
1. a high catalytic oxidation activity material for air purification, is characterized in that: its preparation method is made up of following steps:
1) the TiO2 gel of preparation of sol-gel is added in α-MnO2 nanometer rods solution of Hydrothermal Synthesis, in mixed liquor, TiO2 gel is 1:(1.0～1.4 with α-MnO2 nanometer rods solution quality ratio), mixed liquor is filtered, obtain the filter cake A of moisture content 50%～70%;
2) KIO3 is dissolved in 100 DEG C of water, making mass fraction is 15%～23% potassium iodate solution, and mix with titanate coupling agent or the coupling agent modified nano-ZnO of esters of silicon acis, KIO3 and ZnO mass ratio are 1:(15～25), make photocatalyst activity agent B;
3) by step 1) filter cake A, the photocatalyst activity agent B, tourmaline powder and binding agent 1:(0.15～0.30 in mass ratio that make): (0.20～0.25): mix (0.25～0.30), stir and granulation balling-up or extruding slivering, through 100 DEG C～150 DEG C oven dry, make described material for air purification.
2. material for air purification according to claim 1, its characteristic is: described tourmaline is one or more in dravite, iron tourmaline, iron dravite, clang tourmaline.
3. material for air purification according to claim 1, its characteristic is: described modified nano-ZnO particle diameter is 20nm～50nm.
4. material for air purification according to claim 1, its characteristic is: described binding agent is one or more in active γ-Al2O3, zeolite powder, active recessed soil, kaolin.
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Cited By (8)
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| CN105148836A (en) * | 2015-07-08 | 2015-12-16 | 深圳市中纺滤材无纺布有限公司 | Catalytic decomposition type air purification material and preparation method thereof |
| CN106091343A (en) * | 2016-05-28 | 2016-11-09 | 赣州安宏环保科技有限公司 | Stacking dish dress nanometer colloid hydrogel air depurator |
| CN106824121A (en) * | 2015-12-07 | 2017-06-13 | 山东佳星环保科技有限公司 | A kind of preparation method of ceramic-metal compound air purification material |
| CN108906029A (en) * | 2018-06-27 | 2018-11-30 | 宁波智通环保科技有限公司 | A kind of catalyst of transition metal oxide and its forming method |
| CN109317111A (en) * | 2018-11-05 | 2019-02-12 | 浙江海洋大学 | A kind of preparation method for the floatability type foamed absorbent carrying nano-photocatalyst |
| CN109353298A (en) * | 2018-10-04 | 2019-02-19 | 南京航空航天大学溧水仿生产业研究院有限公司 | It is a kind of for transporting the robot ambulation structure of patient |
| CN113181895A (en) * | 2021-04-29 | 2021-07-30 | 陕西科技大学 | Silicon-based composite material with photocatalysis aldehyde removal function and preparation method thereof |
| CN114159888A (en) * | 2021-11-19 | 2022-03-11 | 安徽元琛环保科技股份有限公司 | Manufacturing method of anti-static filter material and anti-static filter material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105148836A (en) * | 2015-07-08 | 2015-12-16 | 深圳市中纺滤材无纺布有限公司 | Catalytic decomposition type air purification material and preparation method thereof |
| CN106824121A (en) * | 2015-12-07 | 2017-06-13 | 山东佳星环保科技有限公司 | A kind of preparation method of ceramic-metal compound air purification material |
| CN106091343A (en) * | 2016-05-28 | 2016-11-09 | 赣州安宏环保科技有限公司 | Stacking dish dress nanometer colloid hydrogel air depurator |
| CN106091343B (en) * | 2016-05-28 | 2021-12-10 | 赣州安宏环保科技有限公司 | Laminated disc-mounted nano colloidal gel air purifier |
| CN108906029A (en) * | 2018-06-27 | 2018-11-30 | 宁波智通环保科技有限公司 | A kind of catalyst of transition metal oxide and its forming method |
| CN109353298A (en) * | 2018-10-04 | 2019-02-19 | 南京航空航天大学溧水仿生产业研究院有限公司 | It is a kind of for transporting the robot ambulation structure of patient |
| CN109317111A (en) * | 2018-11-05 | 2019-02-12 | 浙江海洋大学 | A kind of preparation method for the floatability type foamed absorbent carrying nano-photocatalyst |
| CN109317111B (en) * | 2018-11-05 | 2021-12-17 | 浙江海洋大学 | Preparation method of floatable foaming adsorbent loaded with nano photocatalyst |
| CN113181895A (en) * | 2021-04-29 | 2021-07-30 | 陕西科技大学 | Silicon-based composite material with photocatalysis aldehyde removal function and preparation method thereof |
| CN114159888A (en) * | 2021-11-19 | 2022-03-11 | 安徽元琛环保科技股份有限公司 | Manufacturing method of anti-static filter material and anti-static filter material |
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