CN104841472A - Supported room temperature air cleaning non-photocatalyst and preparation method thereof - Google Patents
Supported room temperature air cleaning non-photocatalyst and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a supported room temperature air cleaning non-photocatalyst. The supported room temperature air cleaning non-photocatalyst comprises 1-60wt% of nanometer manganese dioxide, 0-3wt% of transition element oxide, 0-6wt% of rare earth element oxide, and the balance of a composite adsorption material with a micro-porous structure; and the composite adsorption material comprises 30-50wt% of diatomite, 25-45wt% of meerschaum, 25-35wt% of molecular sieve, 0-10wt% of silica gel and 5-10wt% of bentonite, and the sum of percentages of all components is 100%. The invention also discloses a preparation method of the supported room temperature air cleaning non-photocatalyst. The supported room temperature air cleaning non-photocatalyst has the advantages of use convenience, no arrangement of an auxiliary device, and guaranteeing of good air clearing effect, and the preparation method greatly reduces the preparation cost.
Description
Technical field
The present invention relates to air purification field, particularly a kind of support type air at room temperature purifies non-photochemical catalyst and preparation method thereof.
Background technology
After entering 2l century, people are more and more stronger for a period of time of environmental protection, and this environmental consciousness is not only embodied in residing natural environment aspect, are also like this to the environment of oneself life; At present, in living environment such as: the peculiar smell of the new house of finishing, the new car of buying and more and more outstanding environmental pollution, bring harm to the health of people and life, organic pollution is one of main matter of industrial pollution and room air pollution; In recent years the removal of organic pollution is become to the important issue of field of Environment Protection, reduce organic pollution as far as possible and pollute, the living environment creating a green safety becomes the target of people's pursuit.
At present, strong adsorptive porous material will be used to carry out physical absorption to organic pollution for various air purifier internal mains and catalysis material decomposes organic pollution; Though physisorption material can adsorb a lot of bacterium and micronic dust, but its service life is short, need to change frequently, thus cause replacement cost high; Nano-photocatalyst material is mainly with nano-TiO
2as photochemical catalyst, but need specific excitation source (patent No. ZL 98115808.0); Catalyst about photochemical catalytic oxidation organic pollution non-under room temperature also has report (ZL 2004100479737), but needs the noble metal of load 0.5-1%, and the participation of noble metal has increased substantially catalyst cost, is unfavorable for its wide popularization and application.
Nanometer MnO
2have catalysed oxidn to have been reported to organic pollution at normal temperatures and pressures, but nano-manganese dioxide particle is tiny, its powder structure is unfavorable for later stage practical application, therefore considers it to combine with carrier, increases its practicality; Carrier can interact with catalyst, plays the effect of adsorbent and the catalytic effect of catalyst simultaneously; Therefore, for finding, a kind of degradation efficiency to organic pollution is high, cheap, the practical support materials of energy-conserving and environment-protective, has very important meaning for indoor air purification field; The strong adsorptivity of high-ratio surface sum of absorption class carrier, is effectively gathered in material surface by pollutant, forms high local concentrations, improve the contact probability of pollutant and catalyst, for the sustaining degradation of catalyst provides possibility at catalyst surface.
By nanometer MnO
2research for non-photochemical catalytic oxidation organic pollutant degradation is a lot, but carrier generally adopts active carbon, and as everyone knows, the cost of active carbon is high; The present invention has prepared compound sorbing material, and loaded nano manganese dioxide is applied in the absorption degradation of organic pollution, instead of the absorbent charcoal carrier that price is more expensive, not only increase catalytic degradation activity, and saved preparation cost, improve the economy of product.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the shortcoming of prior art, provides a kind of support type air at room temperature to purify non-photochemical catalyst and preparation method thereof, this catalyst is easy to use, without the need to increasing auxiliary device, guaranteeing good air purification effect, greatly reducing preparation cost simultaneously.
In order to solve the problems of the technologies described above, the present invention devises a kind of support type air at room temperature and purifies non-photochemical catalyst, comprises following component by weight percentage:
Nano-manganese dioxide: 1-60%, transition elements oxide: 0-3%, rare earth oxide: 0-6%, all the other are the composite adsorbing material with microcellular structure, and nano-manganese dioxide particle diameter is 30-50nm, and the specific area of composite adsorbing material is 70-450m
2/ g, average pore size is 20-120nm, and pore volume is 0.35-1.25ml/g;
In composite adsorbing material, each Ni lead-free solder alloy comprises: diatomite: 30-50%, sepiolite: 25-45%, molecular sieve: 25-35%, silica gel: 0-10%, bentonite: 5-10%, and each component sum equals 100%;
Technique effect: in the present invention, carrier adopts the composite adsorbing material with microcellular structure, can adsorb various foreign odor taste and pernicious gas, improves the dispersion of active component, increases the detergent power of catalyst; Use the carrier of adsorbent type can not only increase the specific area of supported materials, catalyst particles is disperseed, the reaction contact area of active component can also be made to increase;
By the absorption property that composite adsorbing material is powerful, make enriching pollutants arrive active component surface, increase reactant concentration, and the intermediate product in catalytic reaction process can be avoided to dissociate or volatilization, thus effectively ensure that carrying out fast of catalytic reaction; Nano-manganese dioxide is fixed on surface by carrier, to the recycling of oxidation catalyst, save, environmental protection and increase economic benefit have very important significance;
Adsorbent class kind of carrier is various, has abundant pore structure more; The stuctures and properties of carrier self can have a huge impact the degradation capability of manganese dioxide, during as used carrier as manganese dioxide of diatomite, sepiolite, molecular sieve, silica gel or bentonite, its interface surface properties is different, and the catalytic activity of manganese dioxide can be caused to have very big-difference;
Because diatomite is made up of a large amount of porous silica composition, there is very strong adsorption capacity, itself there is the function eliminating peculiar smell, keep indoor cleaning; The odorous gas such as hydrogen sulfide and ammonia can be removed, kill harmful bacterium, and prophylactic propagation; Use at inner chamber of car, the noxious odor that automobile interior trim product distributes can be removed, remove body odour, oils, flue gas or the smell because of carsickness vomiting generation simultaneously; Use in room, the peculiar smell such as greasy, smoking can be removed, simultaneously kill harmful microorganism; Mn in the hydroxyl adsorbent solution on diatomite support surface
2+the particles such as the alkali formula manganese oxide that hydrolysis is produced are grown on carrier surface, so just define the precursor thin-film of manganese dioxide at carrier surface, then obtain loaded nano manganese dioxide through operations such as dehydration, calcinations;
Sepiolite is the catalyst carrier of a kind of high-ratio surface, surface property uniqueness, because sepiolite can provide abundant load space and abundant surface functional group, compared with physical load, can produce a very large impact the dispersant of catalyst and the surperficial potential energy after combining; Be that the manganese dioxide that carrier synthesizes has very high selective and reaction rate to catalytic oxidation with sepiolite;
Molecular sieve is a kind of sorbing material with microcellular structure, can adsorb various foreign odor taste and pernicious gas, then utilizes the catalyst and foreign odor pernicious gas generation chemical reaction wherein with air-cleaning function and is removed by foreign odor gas; In the silicon oxygen bond of molecular sieve surface, oxygen has extra electron can participate in into key, if be combined into manganese oxygen key with manganese, can not only improve the fastness of load, more to MnO
2the dispersion of catalyst is favourable;
Equally, the silicon oxygen bond on silica-gel carrier surface also promotes MnO
2the dispersion of catalyst is favourable;
Bentonite is the moisture clay pit based on montmorillonite, because it has special character, as bloating tendency, caking property, adsorptivity, catalytic, thixotropy, suspension and cation exchange; At physical absorption and promotion MnO
2while catalyst dispersion, the effect of binding agent simultaneously.
As optimization technique method of the present invention:
Further, aforesaid support type air at room temperature purifies non-photochemical catalyst, comprises following component by weight percentage: nano-manganese dioxide: 20-35%
,transition elements oxide: 0.75-1.25%
,rare earth oxide: 1.85-2.50%
,all the other are the composite adsorbing material with microcellular structure, and nano-manganese dioxide particle diameter is 40nm, and the specific area of composite adsorbing material is 320-360m
2/ g, average pore size is 80-110nm, and pore volume is 0.85-1.15ml/g.
Further, aforesaid support type air at room temperature purifies non-photochemical catalyst, comprises following component by weight percentage: nano-manganese dioxide is 25-30%, and transition elements oxide is 1.00-1.10%
,rare earth oxide is 2.00-2.20%
,all the other are the composite adsorbing material with microcellular structure, and nano-manganese dioxide particle diameter is 40nm, and the specific area of composite adsorbing material is 330-350m
2/ g, average pore size is 85-106nm, and pore volume is 0.95-1.10ml/g;
As preferred technical scheme, when nano-manganese dioxide is 25-30%, transition elements oxide is 1.00-1.10%
,rare earth oxide is 2.00-2.20%
,all the other are the composite adsorbing material with microcellular structure, and nano-manganese dioxide particle diameter is 40nm, and the specific area of composite adsorbing material is 330-350m
2/ g, average pore size is 85-106nm, when pore volume is 0.95-1.10ml/g, the catalyst getting 60.24mg obtained is placed in reactor, at ambient temperature, the conversion ratio of formaldehyde is 100%, duration is 20 hours, and with the prolongation of catalytic oxidation time, the clearance of nano-manganese dioxide PARA FORMALDEHYDE PRILLS(91,95) reduces, but react after 46 hours, the clearance of this catalyst PARA FORMALDEHYDE PRILLS(91,95) is still more than 50%;
As can be seen here, in this preferred version, the strong adsorptivity of high-ratio surface sum of absorption class carrier, pollutant is effectively gathered in material surface, form high local concentrations at catalyst surface, substantially increase the contact probability of pollutant and catalyst, for the sustaining degradation of catalyst provides guarantee.Meanwhile, purification effective time interval is improved greatly, and obtain beyond thought technique effect, the organic pollutions such as PARA FORMALDEHYDE PRILLS(91,95), acetaldehyde, volatile organic solvent, polycyclic aromatic hydrocarbon have good removal effect.
Aforesaid support type air at room temperature purifies non-photochemical catalyst, and the raw material that each component is suitable for is as follows:
Transition elements oxide comprises silver oxide, zinc oxide or Cu oxide;
Rare earth oxide comprises lanthanum-oxides, cerium oxide, praseodymium oxide or neodymium oxides.
The present invention have also been devised the preparation method that a kind of support type air at room temperature purifies non-photochemical catalyst, comprises the steps:
take each component by component requirements and obtained composite adsorbing material, wherein diatomite: the 30-50% of mixing, sepiolite: 25-45%, molecular sieve: 25-35%, silica gel: 0-10%, bentonite: 5-10%, each component sum equals 100%; And composite adsorbing material is made into 20-40 object graininess, at 100 DEG C, drying 1.5 hours, then cools for subsequent use under natural situation;
(2) prepare solubility permanganate solution, add composite adsorbing material particle wherein, shake up rear leaving standstill, until the purple in solution takes off, filter out composite adsorbing material, under room temperature, natural drying is to particle mutually adhesion, subsequently at 100 DEG C dry 1 hour for subsequent use;
preparation manganese sulfate solution, wherein in manganese sulfate and permanganate solution, the mol ratio of MnO4 is 3:2, load there is the composite adsorbing material of permanganate to be immersed in manganese sulfate solution to shake after 50 hours and filter, at 100 DEG C dry 1 hour thus obtained support type air at room temperature purifies non-photochemical catalyst.
The present invention have also been devised the preparation method that a kind of support type air at room temperature purifies non-photochemical catalyst, comprises the steps:
take each component by component requirements and obtained composite adsorbing material, wherein diatomite: the 30-45% of mixing, sepiolite: 25-40%, molecular sieve: 30-35%, silica gel: 3-8%, bentonite: 5-8%, each component sum equals 100%; And composite adsorbing material is made into 20-40 object graininess, at 100 DEG C, drying 1.5 hours, then cools for subsequent use under natural situation;
the mixed solution of preparation solubility permanganate and soluble transition element salt, add composite adsorbing material wherein, shake up rear leaving standstill, until the purple in solution takes off, filter out composite adsorbing material, under room temperature, natural drying is to particle mutually adhesion, subsequently at 100 DEG C dry 1 hour for subsequent use;
preparation manganese sulfate solution, wherein in manganese sulfate and permanganate solution, the mol ratio of MnO4 is 3:2, load there is the composite adsorbing material of permanganate and soluble transition element salt to be immersed in manganese sulfate solution to shake after 50 hours and filter, at 100 DEG C dry 1 hour thus obtained support type air at room temperature purifies non-photochemical catalyst.
The present invention have also been devised the preparation method that a kind of support type air at room temperature purifies non-photochemical catalyst, comprises the steps:
take each component by component requirements and obtained composite adsorbing material, wherein diatomite: the 30-40% of mixing, sepiolite: 25-35%, molecular sieve: 32-35%, silica gel: 3-7%, bentonite: 5-7%, each component sum equals 100%; And composite adsorbing material is made into 20-40 object graininess, at 100 DEG C, drying 1.5 hours, then cools for subsequent use under natural situation;
(2) mixed solution of solubility permanganate, soluble transition element salt and soluble rare earth salt is prepared, add composite adsorbing material wherein, shake up rear leaving standstill, until the purple in solution takes off, filter out composite adsorbing material, under room temperature, natural drying is to particle mutually adhesion, subsequently at 100 DEG C dry 1 hour for subsequent use;
preparation manganese sulfate solution, wherein in manganese sulfate and permanganate solution, the mol ratio of MnO4 is 3:2, load there is the composite adsorbing material of permanganate, soluble transition element salt and soluble rare earth salt to be immersed in manganese sulfate solution to shake after 50 hours and filter, at 100 DEG C dry 1 hour thus obtained support type air at room temperature purifies non-photochemical catalyst.
Aforesaid support type air at room temperature purifies the preparation method of non-photochemical catalyst, and diatomite is elder generation's calcination process in Muffle furnace before use.
catalyst performance evaluation
Catalytic activity test is carried out in normal temperature and pressure mini-reactor; Catalyst amount 10-100mg, air velocity 50ml/min, stream of gaseous formaldehyde is produced by air pump, flow velocity is measured by spinner flowmeter and corrects with soap film flowmeter, air-flow concentration of formaldehyde is measured by AHMT AAS (GB/T16129) with the rear concentration of formaldehyde of reaction, and air-flow concentration of formaldehyde controls about 0.05%;
The present invention adopts nano-manganese dioxide to be catalyst, and the organic volatile type gas at normal temperatures in catalytic degradation air, to reach the object purified air; There is the sorbing material of microcellular structure, various foreign odor taste and pernicious gas can be adsorbed, then utilize the catalyst and foreign odor pernicious gas generation chemical reaction wherein with air-cleaning function and removed by foreign odor gas, thus this technology has good air purification effect;
The present invention compared with traditional air purifying process, efficient height, energy consumption are little, non-secondary pollution, without the need to features such as illumination; Transition elements and rare earth modified nano MnO under normal temperature, normal pressure, natural daylight condition
2load composite adsorbing material has good degrading activity to Gaseous Organic Pollutant; Because it is cheap, thorough non-secondary pollution of degrading, and convenient recycling, have a good application prospect.
Detailed description of the invention
embodiment 1
Present embodiments provide a kind of support type air at room temperature and purify non-photochemical catalyst, by weight percentage, containing nano-manganese dioxide 27.17% in this catalyst, all the other are the composite adsorbing material with microcellular structure, nano-manganese dioxide particle diameter is 30nm, and the specific area of composite adsorbing material is 330m
2/ g, average pore size is 85nm, and pore volume is 0.95ml/g, and its preparation method is:
By weight percentage, take each component raw material of composite adsorbing material carrier, wherein diatomite 36%, sepiolite 25%, molecular sieve 25%, silica gel 8%, bentonite 6%, wherein, diatomite is elder generation's calcination process in Muffle furnace before taking; After being mixed by the raw material weighed up, be made into 20 object graininess, drying 1.5 hours at 100 DEG C, then cool for subsequent use under natural situation, composite adsorbing material is made up of the sorbing material carrier and binding agent with microcellular structure;
Compound concentration is the liquor potassic permanganate of 0.01M, gets 500ml solution and adds 4g composite adsorbing material, shakes up rear leaving standstill, until the purple in solution takes off, filter out composite adsorbing material, under room temperature, natural drying is to particle mutually adhesion, at 100 DEG C dry 1 hour for subsequent use;
Preparation 375ml concentration is the manganese sulfate solution of 0.02M, is immersed in by the composite adsorbing material of loaded potassium permanganate in corresponding manganese sulfate solution to shake after 50 hours to filter, drying 1 hour at 100 DEG C, obtained MnO
2loaded catalyst;
In actual use, the catalyst getting the above-mentioned preparation of 60.51mg is placed in reactor, at ambient temperature, the conversion ratio of formaldehyde is 100%, duration is 7 hours, and with the prolongation of catalytic oxidation time, the clearance of nano-manganese dioxide PARA FORMALDEHYDE PRILLS(91,95) reduces, react after 13 hours, the clearance of nano-manganese dioxide PARA FORMALDEHYDE PRILLS(91,95) is still more than 50%.
embodiment 2
Present embodiments provide a kind of support type air at room temperature and purify non-photochemical catalyst, by weight percentage, containing nano-manganese dioxide 21.74% in this catalyst, all the other are the composite adsorbing material with microcellular structure, nano-manganese dioxide particle diameter is 50nm, and the specific area of composite adsorbing material is 350m
2/ g, average pore size is 105nm, and pore volume is 1.10ml/g, and its preparation method is:
By weight percentage, take each component raw material of composite adsorbing material carrier, wherein diatomite 40%, sepiolite 30%, molecular sieve 18%, silica gel 6%, bentonite 6%, wherein, diatomite is elder generation's calcination process in Muffle furnace before taking; After being mixed by the raw material weighed up, be made into 40 object graininess, drying 1.5 hours at 100 DEG C, then cool for subsequent use under natural situation, composite adsorbing material is made up of the sorbing material carrier and binding agent with microcellular structure;
Compound concentration is the ammonium permanganate solution of 0.02M, gets 200ml and adds 4g composite adsorbing material, shakes up rear leaving standstill, until the purple in solution takes off, filter out composite adsorbing material, under room temperature, natural drying is to particle mutually adhesion, subsequently at 100 DEG C dry 1 hour for subsequent use;
Preparation 300ml concentration is that the composite adsorbing material of load ammonium permanganate is immersed in concussion filtration after 50 hours in corresponding manganese sulfate solution, drying 1 hour at 100 DEG C, obtained MnO by the manganese sulfate solution of 0.02M
2loaded catalyst;
In actual use, get the above-mentioned obtained catalyst of 60.43mg and be placed in reactor, at ambient temperature, the conversion ratio of formaldehyde is 100%, and the duration is 5 hours.With the prolongation of catalytic oxidation time, the clearance of nano-manganese dioxide PARA FORMALDEHYDE PRILLS(91,95) reduces, and react after 9 hours, the clearance of nano-manganese dioxide PARA FORMALDEHYDE PRILLS(91,95) is still more than 50%.
embodiment 3
Present embodiments provide a kind of support type air at room temperature and purify non-photochemical catalyst, by weight percentage, containing the nano-manganese dioxide of 27.17% and the silver oxide of 1.04% in this catalyst, all the other are the composite adsorbing material with microcellular structure, nano-manganese dioxide particle diameter is 40nm, and the specific area of composite adsorbing material is 330m
2/ g, average pore size is 100nm, and pore volume is 1.03ml/g, and its preparation method is:
By weight percentage, take each component raw material of composite adsorbing material carrier, wherein diatomite 32%, sepiolite 27%, molecular sieve 32%, silica gel 5%, bentonite 4%, wherein, diatomite is elder generation's calcination process in Muffle furnace before taking; After being mixed by the raw material weighed up, be made into 30 object graininess, drying 1.5 hours at 100 DEG C, then cool for subsequent use under natural situation, composite adsorbing material is made up of the sorbing material carrier and binding agent with microcellular structure;
Be the NaMnO of 0.01M by 500ml concentration
4solution and 18ml concentration are the AgNO of 0.02M
3mixing, adds 4g composite adsorbing material, shakes up rear leaving standstill, until the purple in solution takes off, filters out composite adsorbing material, and under room temperature, natural drying is to particle mutually adhesion, and 100 DEG C of dryings 1 hour are for subsequent use;
Preparation 375ml concentration is the manganese sulfate solution of 0.02M, load is had the composite adsorbing material of sodium permanganate and silver nitrate to be immersed in corresponding manganese sulfate solution and shakes filtration after 50 hours, drying 1 hour at 100 DEG C, the MnO of obtained silver-colored modification
2loaded catalyst;
In actual use, get the above-mentioned obtained catalyst of 60.58mg and be placed in reactor, at ambient temperature, the conversion ratio of formaldehyde is 100%, duration is 12 hours, and with the prolongation of catalytic oxidation time, the clearance of nano-manganese dioxide PARA FORMALDEHYDE PRILLS(91,95) reduces, react after 24 hours, the clearance of nano-manganese dioxide PARA FORMALDEHYDE PRILLS(91,95) is still more than 50%.
embodiment 4
Present embodiments provide a kind of support type air at room temperature and purify non-photochemical catalyst, by weight percentage, in this catalyst containing the nano-manganese dioxide of 27.17%, the silver oxide of 1.04% and 2.15% cerium oxide, all the other are the composite adsorbing material with microcellular structure, nano-manganese dioxide particle diameter is 40nm, and the specific area of composite adsorbing material is 340m
2/ g, average pore size is 95nm, and pore volume is 1.05ml/g, and its preparation method is:
By weight percentage, take each component raw material of composite adsorbing material carrier, wherein diatomite 30%, sepiolite 30%, molecular sieve 30%, silica gel 5%, bentonite 5%, wherein, diatomite is elder generation's calcination process in Muffle furnace before taking; After being mixed by the raw material weighed up, be made into 35 object graininess, drying 1.5 hours at 100 DEG C, then cool for subsequent use under natural situation, composite adsorbing material is made up of the sorbing material carrier and binding agent with microcellular structure;
Be the KMnO of 0.01M by 500ml concentration
4, 18ml concentration is the AgNO of 0.02M
3and 25ml concentration is the Ce (NO of 0.02M
3)
2solution mixes, and adds 4g composite adsorbing material, shakes up rear leaving standstill, until the purple in solution takes off, filters out composite adsorbing material, and under room temperature, natural drying is to particle mutually adhesion, at 100 DEG C dry 1 hour for subsequent use;
Preparation 375ml concentration is the manganese sulfate solution of 0.02M, is immersed in by the composite adsorbing material of loaded potassium permanganate, silver nitrate and cerous nitrate in corresponding manganese sulfate solution to shake after 50 hours to filter, drying 1 hour at 100 DEG C, obtained silver and cerium modified MnO
2loaded catalyst;
In actual use, get the above-mentioned obtained catalyst of 60.24mg and be placed in reactor, at ambient temperature, the conversion ratio of formaldehyde is 100%, duration is 20 hours, and with the prolongation of catalytic oxidation time, the clearance of nano-manganese dioxide PARA FORMALDEHYDE PRILLS(91,95) reduces, react after 46 hours, the clearance of nano-manganese dioxide PARA FORMALDEHYDE PRILLS(91,95) is still more than 50%.
comparative example 1
Present embodiments provide the preparation method of the non-smooth purification of air catalyst of a kind of room temperature, in this catalyst, comprise the nanometer MnO of 92.87%
2particle, the silver oxide of 1.98% and the cerium oxide of 5.15%, its preparation method is:
Be the silver nitrate of 0.02M by 8ml concentration, 14ml concentration be the cerous nitrate of 0.02M and 400ml concentration is the KMnO of 0.01M
4solution mixes, and is then the MnSO of 0.02M by 300ml concentration
4solution is placed on magnetic stirring apparatus, above-mentioned mixed solution is dropwise added under 1300r/min rapid stirring, rapid stirring a period of time, after the slurry filtered water generated, gained precipitation is through distilled water absolute ethanol washing, vacuum filtration is colourless to filtrate repeatedly, be placed in drying box, at 120 DEG C, drying 12 hours, obtains the nanometer MnO of cerium, silver-colored modification
2particle, the obtained non-smooth purification of air catalyst of room temperature;
In actual use, get the above-mentioned catalyst of 20.64mg and be placed in reactor, at ambient temperature, the conversion ratio of formaldehyde is 100%, and the duration is only 14 hours; With the prolongation of catalytic oxidation time, the clearance of nano-manganese dioxide PARA FORMALDEHYDE PRILLS(91,95) reduces, and react after 30 hours, namely the clearance of nano-manganese dioxide PARA FORMALDEHYDE PRILLS(91,95) is down to less than 50%.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (8)
1. support type air at room temperature purifies a non-photochemical catalyst, it is characterized in that, comprises following component by weight percentage:
Nano-manganese dioxide: 1-60%, transition elements oxide: 0-3%, rare earth oxide: 0-6%, all the other are the composite adsorbing material with microcellular structure, and nano-manganese dioxide particle diameter is 30-50nm, and the specific area of composite adsorbing material is 70-450m
2/ g, average pore size is 20-120nm, and pore volume is 0.35-1.25ml/g;
Described have each Ni lead-free solder alloy in the composite adsorbing material of microcellular structure and comprise: diatomite: 30-50%, sepiolite: 25-45%, molecular sieve: 25-35%, silica gel: 0-10%, bentonite: 5-10%, each component sum equals 100%.
2. support type air at room temperature according to claim 1 purifies non-photochemical catalyst, it is characterized in that, comprises following component by weight percentage: nano-manganese dioxide: 20-35%
,transition elements oxide: 0.75-1.25%
,rare earth oxide: 1.85-2.50%
,all the other are the composite adsorbing material with microcellular structure, and nano-manganese dioxide particle diameter is 40nm, and the specific area of composite adsorbing material is 320-360m
2/ g, average pore size is 80-110nm, and pore volume is 0.85-1.15ml/g.
3. support type air at room temperature according to claim 2 purifies non-photochemical catalyst, it is characterized in that, comprises following component by weight percentage: nano-manganese dioxide is 25-30%, and transition elements oxide is 1.00-1.10%
,rare earth oxide is 2.00-2.20%, and all the other are the composite adsorbing material with microcellular structure, and nano-manganese dioxide particle diameter is 40nm, and the specific area of composite adsorbing material is 330-350m
2/ g, average pore size is 85-106nm, and pore volume is 0.95-1.10ml/g.
4. purify non-photochemical catalyst according to the support type air at room temperature in claims 1 to 3 described in any one claim, it is characterized in that, the raw material that each component is suitable for is as follows:
Described transition elements oxide comprises silver oxide, zinc oxide or Cu oxide;
Described rare earth oxide comprises lanthanum-oxides, cerium oxide, praseodymium oxide or neodymium oxides.
5. support type air at room temperature according to claim 1 purifies the preparation method of non-photochemical catalyst, it is characterized in that, comprises the steps:
take each component by component requirements and obtained composite adsorbing material, wherein diatomite: the 30-50% of mixing, sepiolite: 25-45%, molecular sieve: 25-35%, silica gel: 0-10%, bentonite: 5-10%, each component sum equals 100%; And composite adsorbing material is made into 20-40 object graininess, at 100 DEG C, drying 1.5 hours, then cools for subsequent use under natural situation;
(2) prepare solubility permanganate solution, add composite adsorbing material particle wherein, shake up rear leaving standstill, until the purple in solution takes off, filter out composite adsorbing material, under room temperature, natural drying is to particle mutually adhesion, subsequently at 100 DEG C dry 1 hour for subsequent use;
preparation manganese sulfate solution, wherein in manganese sulfate and permanganate solution, the mol ratio of MnO4 is 3:2, load there is the composite adsorbing material of permanganate to be immersed in manganese sulfate solution to shake after 50 hours and filter, at 100 DEG C dry 1 hour thus obtained support type air at room temperature purifies non-photochemical catalyst.
6. support type air at room temperature according to claim 1 purifies the preparation method of non-photochemical catalyst, it is characterized in that, comprises the steps:
take each component by component requirements and obtained composite adsorbing material, wherein diatomite: the 30-45% of mixing, sepiolite: 25-40%, molecular sieve: 30-35%, silica gel: 3-8%, bentonite: 5-8%, each component sum equals 100%; And composite adsorbing material is made into 20-40 object graininess, at 100 DEG C, drying 1.5 hours, then cools for subsequent use under natural situation;
the mixed solution of preparation solubility permanganate and soluble transition element salt, add composite adsorbing material wherein, shake up rear leaving standstill, until the purple in solution takes off, filter out composite adsorbing material, under room temperature, natural drying is to particle mutually adhesion, subsequently at 100 DEG C dry 1 hour for subsequent use;
preparation manganese sulfate solution, wherein in manganese sulfate and permanganate solution, the mol ratio of MnO4 is 3:2, load there is the composite adsorbing material of permanganate and soluble transition element salt to be immersed in manganese sulfate solution to shake after 50 hours and filter, at 100 DEG C dry 1 hour thus obtained support type air at room temperature purifies non-photochemical catalyst.
7. purify the preparation method of non-photochemical catalyst according to the support type air at room temperature in claims 1 to 3 described in any one claim, it is characterized in that, comprise the steps:
take each component by component requirements and obtained composite adsorbing material, wherein diatomite: the 30-40% of mixing, sepiolite: 25-35%, molecular sieve: 32-35%, silica gel: 3-7%, bentonite: 5-7%, each component sum equals 100%; And composite adsorbing material is made into 20-40 object graininess, at 100 DEG C, drying 1.5 hours, then cools for subsequent use under natural situation;
(2) mixed solution of solubility permanganate, soluble transition element salt and soluble rare earth salt is prepared, add composite adsorbing material wherein, shake up rear leaving standstill, until the purple in solution takes off, filter out composite adsorbing material, under room temperature, natural drying is to particle mutually adhesion, subsequently at 100 DEG C dry 1 hour for subsequent use;
preparation manganese sulfate solution, wherein in manganese sulfate and permanganate solution, the mol ratio of MnO4 is 3:2, load there is the composite adsorbing material of permanganate, soluble transition element salt and soluble rare earth salt to be immersed in manganese sulfate solution to shake after 50 hours and filter, at 100 DEG C dry 1 hour thus obtained support type air at room temperature purifies non-photochemical catalyst.
8. purify the preparation method of non-photochemical catalyst according to the support type air at room temperature in claim 5-7 described in any one claim, it is characterized in that, described diatomite is elder generation's calcination process in Muffle furnace before use.
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