CN107519844A - The preparation method of high-efficiency antimicrobial gas adsorption material - Google Patents
The preparation method of high-efficiency antimicrobial gas adsorption material Download PDFInfo
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- CN107519844A CN107519844A CN201710933463.7A CN201710933463A CN107519844A CN 107519844 A CN107519844 A CN 107519844A CN 201710933463 A CN201710933463 A CN 201710933463A CN 107519844 A CN107519844 A CN 107519844A
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- gas adsorption
- adsorption material
- efficiency antimicrobial
- antimicrobial gas
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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Abstract
Stable for indoor harmful energy it is an object of the invention to provide one kind, the rate of adsorption is fast, and adsorption capacity is big and can be simultaneous with the synthetically prepared of the sorbing material of sterilizing function.The preparation method of high-efficiency antimicrobial gas adsorption material, comprises the following steps：（1）Agar powder is added in distilled water, microwave is heated to settled solution, by finite concentration AgNO3It is added thereto dissolving；（2）One kind in the silica gel of addition SiO2/Al2O3 mol ratios are 100 ~ 200 in above-mentioned settled solution the molecular sieves of ZSM 5, X Hydrogens Si-Al zeolite or high-specific surface area is fully taken out as absorption carrier after immersion；（3）By the absorption carrier after immersion, in an inert atmosphere, gradient increased temperature, and half an hour is kept respectively.
Description
Technical field
The present invention relates to a kind of high-efficiency antimicrobial gas adsorption material.
Background technology
Room air pollution phenomenon is widely present in the building of the various closings such as room at present, severe Interior Space
Gas is seriously endangered to the health care belt of the mankind.The world environments held in Washington would indicate that greatly within 1997:Interior Space
Gas damage ratio outdoor air pollution is more serious.Air pollution problem inside rooms all receive great attention, Europe in world many countries
Continent, North America and Japan and other countries have carried out the research work of indoor environmental quality from the 80's of 20th century.
China is the country of a cancer high incidence, almost just has within five minutes a cancer patient to occur, according to substantial amounts of
Research report, interior decoration, furniture, toxic and harmful gas caused by electrical equipment are the main reason for currently the majority cancer induce,
Modern almost 80 ~ 90% time spend indoors, the quality of room air concerns the health of people, but poisonous
The involuntary health for destroying us of pernicious gas.
Indoor toxic and harmful gas includes：
Aldehydes（Based on formaldehyde）：As magma noxious material, it can be combined with protein, influenceing human body from the aspect of metabolism is good for
Health.Low concentration formaldehyde can cause to breathe disease of digestive system, and the formaldehyde of high concentration then has strong carcinogenesis.Formaldehyde is soluble in water
And organic solvent, easily attachment, temperature rise are readily volatilized.It is that extended residual slowly volatilizees on furniture and house ornamentation and carcinogenic had
One of poisonous gas；
Benzene and toluene class：Benzene and toluene are the arch-criminals of leucocyte lesion, can cause chromosome lesion, and benzene and toluene belong to virtue
Fragrant compounds of group, phenyl ring is particularly stable, is not easily decomposed in vivo, can have a strong impact on health.Benzene ring substance essentially from
Paint that interior uses etc.；
Radioactive radon gas：Radioactive radon gas comes from construction material or building lot, and meeting continuation distributes radioactivity gas
Body, radgas excessive concentration can cause cell carcinogenesis and gene mutation, pregnant woman, infant be influenceed especially serious；
Ammonia nitrogen compound：Indoor ammonia nitrogen compound is mainly ammonia, and ammonia can damage to respiratory system and Mucosal system,
And indoor ammonia is mainly as caused by construction material.
Dust bacterium：It is all by bacterial entrained by dust in air, to the mankind to have many breathing problems
There is very big threat.
Most of researchs on indoor gas absorption both at home and abroad are all confined on the materials such as formaldehyde and toluene, for radon gas
Or the absorption research of ammonia nitrogen compound is relatively fewer, patent is also and few.Employed in patent CN201210408096.6
Be zeolite but its be modified and handled using fluorine silicon, this method strengthens for benzene, first benezene material adsorption capacity, but for first
The absorption properties such as aldehyde, radioactive radon gas improve and unobvious.It is organic that a kind of metal is given in patent CN201110023219.X
Framework material adsorption of indoor polluted air, there is relatively good absorption property for benzene, toluene, formaldehyde etc., but its synthesis is complicated,
And it is expensive, do not have universal adaptability.
The content of the invention
Stable for indoor harmful energy it is an object of the invention to provide one kind, the rate of adsorption is fast, the big simultaneously energy of adsorption capacity
Simultaneous with sterilizing function sorbing material it is synthetically prepared.
A kind of preparation method of high-efficiency antimicrobial gas adsorption material, comprises the following steps：
（1）Agar powder is added in distilled water, microwave is heated to settled solution, and finite concentration AgNO3 is added thereto into dissolving；
（2）The ZSM-5 molecular sieve, the boiling of X Hydrogens sial that SiO2/Al2O3 mol ratios are 100 ~ 200 are added in above-mentioned settled solution
One kind in the silica gel of stone or high-specific surface area is fully taken out as absorption carrier after immersion；
（3）By the absorption carrier after immersion, in an inert atmosphere, gradient increased temperature, and half an hour is kept respectively.
Wherein AgNO3 is added until being saturated solution.
Absorption carrier can also include alkali metal oxide, transition metal oxide, and adhesive oxides.
The concentration of agar is 1-5%, preferably 2%.
The adhesive oxides are selected from silicon dioxide gel.
3% is loaded with the skeleton structure of the sorbing material carrier（Weight）Alkali metal oxide and 2.5%（Matter
Amount）Transition metal oxide.
Gradient increased temperature is 50 DEG C, 80 DEG C, 300 DEG C.
The present invention compares, agar powder, ZSM-5, and the price of silica gel or X molecular sieve is all less expensive, and has
High specific surface area and multi-pore channel structure, the features such as intensity is high, wear-resistant, corrosion-resistant, then it is subject to the modification of metal oxide
So that it not only has adsorption capacity for indoor polluted gas, it may have decomposition prevents desorption performance.Silver nitrate can simultaneously
To make full use of without wasting.Simultaneously there are biocidal efficacies to be also for absorption such as formaldehyde, benzene, toluene, radon gas, ammonia nitrogen compounds
The one big feature of this material.
Embodiment：
Agar and the absorption carrier in silver nitrate mixed aqueous solution immersed with loose structure, it is mixed can fully to adsorb this in the present invention
Heshui solution.Then after cooling down, agar forms gel, and silver nitrate is fixed on inside duct.With being immersed directly in silver nitrate water
Compare, more silver nitrates can be fixed on carrier in solution, at the same it is also more uniform.Then heated under gradient temperature,
Silver nitrate is promoted to resolve into silver oxide, while agar also continuous dehydration carbonization, adsorb on inner surfaces of pores.This will realize nitric acid
Silver is supported on inner surfaces of pores with charcoal doping.Charcoal can further increase adsorption efficiency, and simultaneous oxidation silver realizes sterilizing function,
And charcoal doping silver oxide, which also has to cooperate with, improves sterilizing function.
The synthetic method of high-efficiency antimicrobial gas adsorption material proposed by the present invention, is comprised the following steps that：
1, the carrier synthesis of sorbing material：ZSM-5 molecular sieve, the former powder of X molecular sieve are selected, alumina powder or Ludox are made
For binding agent, Ludox is called Ludox type molecular sieve as the molecular sieve of binding agent, and its raw material ratio of components is as follows：Molecular screen primary
Powder：Ludox=70:30.
2, prepared by the load of sorbing material：（1）2% agar powder is added in distilled water, microwave is heated to settled solution, will
Saturation AgNO3 is added thereto dissolving；（2）The absorption carrier of above-mentioned preparation is added in above-mentioned settled solution, fully after immersion
Take out；（3）By the absorption carrier after immersion, in an inert atmosphere, 50 DEG C of gradient increased temperature, 80 DEG C, 300 DEG C, and protect respectively
Hold half an hour.
3, the determining adsorption of sorbing material：
Sorbing material is respectively in 1 cubic metre of glass box, to be roused with nitrogen to the method for testing of toluene, the adsorption capacity of formaldehyde
Bubble form, is passed through toluene gas and formaldehyde gas, until harmful gas concentration is 100Ppm, is put into 1g sorbing materials to be measured, inhales
Untill being attached to sorbing material adsorption saturation, that is, reach adsorption equilibrium, during which do not stop to be passed through toluene, formaldehyde gas.
In the present invention, sorbing material is to the rate of adsorption method of testing of toluene, formaldehyde, respectively in 1 cubic metre of glass box
In, with nitrogen bubble form, toluene gas and formaldehyde gas are passed through, until harmful gas concentration is 100Ppm, it is to be measured to be put into 1g
Sorbing material, absorption a period of time（The present invention calculated according to one hour）, the rate of adsorption of unit of account mass adsorption material.
Sorbing material is respectively in 1 cubic metre of glass box, to use nitrogen to the method for testing of toluene, the adsorption capacity of formaldehyde
Gas bell form, is passed through toluene gas and formaldehyde gas, until harmful gas concentration is 100Ppm, is put into 1g adsorption materials to be measured
Material, untill being adsorbed onto sorbing material adsorption saturation, that is, reach adsorption equilibrium, calculate saturated extent of adsorption.
Tested according to GB/T 21510-2008, calculate the antibiotic rate of sorbing material.
Embodiment 1：
The carrier synthesis of sorbing material：ZSM-5 molecular sieve 35g is selected, Ludox 15g is as binding agent, mixed molecular sieve original powder
Extrusion is mediated with Ludox, the molecular sieve carrier of adsorbent is obtained after the drying that 200 degree carry out 2h.
It is prepared by the load of sorbing material：Prepared by the load of sorbing material is on the molecular sieve carrier of above-mentioned synthesis, is used
The method of direct incipient impregnation,（1）2% agar powder is added in distilled water, microwave is heated to settled solution, by saturation AgNO3
It is added thereto dissolving；（2）The absorption carrier of above-mentioned preparation is added in above-mentioned settled solution, is fully taken out after immersion；（3）Will
Absorption carrier after immersion, in an inert atmosphere, 50 DEG C of gradient increased temperature, 80 DEG C, 300 DEG C, and half an hour is kept respectively.
Embodiment 2：
The present embodiment sorbing material preparation method is consistent with the operating procedure in the content of embodiment 1, it is different from embodiment 1 it
The carrier being in sorbing material, which synthesizes to obtain molecular sieve carrier, further impregnates alkali metal salt sodium carbonate 8.0% and transition metal
In the mixed solution of salt cobalt nitrate 6.0%, filtered after static 24h, the material after load carries out 2h roasting at 600 degree, and the dipping is inhaled
Alkali metal oxide Na content is 3% on enclosure material, and the transition metal oxide Co of dipping content is 2.5%.
Comparative example 1：
The molecular sieve that the carrier of sorbing material synthesizes to obtain in embodiment 1 directly carries out performance test.
Comparative example 2：
The molecular sieve that the carrier of sorbing material synthesizes to obtain in embodiment 2 directly carries out performance test.
Comparative example 3：
It is same as Example 1, except being added without silver nitrate.
Comparative example 4：
It is same as Example 1, except being added without agar powder.
According to the performance test results, comparative example 1 and 2, can after finding that sorbing material is further metal oxide-loaded
With a certain amount of raising rate of adsorption and adsorption capacity.Comparative example 1 and comparative example 1, embodiment 2 and comparative example 2, find to prepare
Process, which adds agar powder and silver nitrate, can significantly improve adsorption capacity and antibiotic rate.Comparative example 1 and comparative example 3,4, can
To find that agar powder primarily serves the effect of enhancing adsorption capacity, silver nitrate plays bactericidal action.Agar powder can increase nitre simultaneously
The load capacity of sour silver, while can play collaboration with aoxidizing Ag doping after carbonization and improve bactericidal action.
Claims (7)
1. a kind of preparation method of high-efficiency antimicrobial gas adsorption material, comprises the following steps：
（1）Agar powder is added in distilled water, microwave is heated to settled solution, by finite concentration AgNO3It is added thereto dissolving；
（2）The ZSM-5 molecular sieve, the boiling of X Hydrogens sial that SiO2/Al2O3 mol ratios are 100 ~ 200 are added in above-mentioned settled solution
One kind in the silica gel of stone or high-specific surface area is fully taken out as absorption carrier after immersion；
（3）By the absorption carrier after immersion, cooling is taken out, in an inert atmosphere, gradient increased temperature, and holding half is small respectively
When.
2. high-efficiency antimicrobial gas adsorption material according to claim 1, it is characterised in that AgNO3 is added until molten for saturation
Liquid.
3. high-efficiency antimicrobial gas adsorption material according to claim 1, it is characterised in that the concentration of agar is 1-5%.
4. high-efficiency antimicrobial gas adsorption material according to claim 1, its feature absorption carrier can also include alkali metal
Oxide, transition metal oxide, and adhesive oxides.
5. high-efficiency antimicrobial gas adsorption material according to claim 4, it is characterised in that the adhesive oxides are selected from
Silicon dioxide gel.
6. high-efficiency antimicrobial gas adsorption material according to claim 1, it is characterised in that the bone of the sorbing material carrier
3% is loaded with frame structure（Weight）Alkali metal oxide and 2.5%（Quality）Transition metal oxide.
7. high-efficiency antimicrobial gas adsorption material according to claim 1, it is characterised in that gradient increased temperature be 50 DEG C, 80 DEG C,
300℃。
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357888A (en) * | 2013-07-05 | 2013-10-23 | 淮阴工学院 | Green synthetic method of one-dimensional core-shell type nano silver/attapulgite clay composite material |
| CN104888694A (en) * | 2015-05-28 | 2015-09-09 | 同济大学 | Adsorbing material for efficiently adsorbing indoor formaldehyde and methylbenzene gases |
| CN105032344A (en) * | 2015-06-19 | 2015-11-11 | 湖北中烟工业有限责任公司 | Carbon-doped nano-titanium dioxide adsorbing material for reducing harmful components of cigarettes |
| CN106346018A (en) * | 2016-09-21 | 2017-01-25 | 武汉工程大学 | Preparation method and application of agarose/nano-silver composite gel |
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2017
- 2017-10-10 CN CN201710933463.7A patent/CN107519844A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357888A (en) * | 2013-07-05 | 2013-10-23 | 淮阴工学院 | Green synthetic method of one-dimensional core-shell type nano silver/attapulgite clay composite material |
| CN104888694A (en) * | 2015-05-28 | 2015-09-09 | 同济大学 | Adsorbing material for efficiently adsorbing indoor formaldehyde and methylbenzene gases |
| CN105032344A (en) * | 2015-06-19 | 2015-11-11 | 湖北中烟工业有限责任公司 | Carbon-doped nano-titanium dioxide adsorbing material for reducing harmful components of cigarettes |
| CN106346018A (en) * | 2016-09-21 | 2017-01-25 | 武汉工程大学 | Preparation method and application of agarose/nano-silver composite gel |
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Application publication date: 20171229 |