CN107376939A - A kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde - Google Patents
A kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde Download PDFInfo
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- CN107376939A CN107376939A CN201710785145.0A CN201710785145A CN107376939A CN 107376939 A CN107376939 A CN 107376939A CN 201710785145 A CN201710785145 A CN 201710785145A CN 107376939 A CN107376939 A CN 107376939A
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- activated carbon
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 247
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 239000003054 catalyst Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 claims abstract description 36
- 239000012266 salt solution Substances 0.000 claims abstract description 25
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 238000001354 calcination Methods 0.000 claims description 32
- 239000012153 distilled water Substances 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 24
- 239000003610 charcoal Substances 0.000 claims description 19
- 229910002651 NO3 Inorganic materials 0.000 claims description 16
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 16
- 238000007654 immersion Methods 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 12
- 244000060011 Cocos nucifera Species 0.000 claims description 10
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 10
- 238000013006 addition curing Methods 0.000 claims description 8
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229920005573 silicon-containing polymer Polymers 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 7
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 7
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 5
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 12
- 230000003075 superhydrophobic effect Effects 0.000 abstract description 5
- 238000003421 catalytic decomposition reaction Methods 0.000 abstract description 3
- 238000005406 washing Methods 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract description 3
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 description 15
- 229930040373 Paraformaldehyde Natural products 0.000 description 10
- 229920002866 paraformaldehyde Polymers 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000002209 hydrophobic effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010903 husk Substances 0.000 description 2
- LITYQKYYGUGQLY-UHFFFAOYSA-N iron nitric acid Chemical compound [Fe].O[N+]([O-])=O LITYQKYYGUGQLY-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000009938 salting Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 241000238366 Cephalopoda Species 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- 241000251511 Holothuroidea Species 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 235000008446 instant noodles Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 210000002787 omasum Anatomy 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8926—Copper and noble metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8913—Cobalt and noble metals
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/892—Nickel and noble metals
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/618—Surface area more than 1000 m2/g
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
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- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
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Abstract
The invention discloses a kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde, comprise the following steps：A, the high-temperature vapor method pretreatment of activated carbon；B, bimetal salt solution is prepared；C, modified activated carbon is prepared；D, water-repelling agent is prepared；E, modified activated carbon is added in water-repelling agent and soaked, dried afterwards, that is, obtain activated-carbon catalyst.In the present invention, cost-effective without washing and discharge of wastewater in catalyst preparation process, technique simplifies, and improves the service life of activated carbon；The component for the modifying agent that the present invention uses is few, and the amount of modifying agent is also few, it accurately can be controlled, technique is simple, easy large-scale production；The modified property with super-hydrophobic, high absorption and fast room-temperature catalytic decomposition formaldehyde.
Description
Technical field
The present invention relates to activated-carbon catalyst preparing technical field, specially a kind of activated carbon of constant temperature catalyzing decomposing formaldehyde
The preparation method of catalyst.
Background technology
The formaldehyde damaged in life to human body, it may be said that ubiquitous.The article being related to includes furniture, timber floor；
Children's garment, wash-and-wear of shirt；Instant noodles, ground rice；Bubble squid, sea cucumber, Omasum, peeled shrimp；Even car.It is not difficult to find out, clothing,
Food, shelter, OK --- we live most important four things, and formaldehyde is all had a finger in every pie unexpectedly, and ubiquitous formaldehyde allows people's worry
It is laden with anxiety.Therefore the processing method of research formaldehyde has vital society and environmental issue for us.
In the technology of a variety of processing formaldehyde, isothermal plasma method and photocatalytic oxidation cost height, energy consumption are big, easy band
Carry out secondary pollution.Adsorption recovery is that a kind of cost is relatively low, operating method easy to operate, silica gel, molecular sieve, activated carbon etc. is porous
Material may serve to adsorption recovery formaldehyde, and wherein absorbent charcoal material is contained by the amorphous carbon obtained by working process, inside
There are a large amount of micropores, there is huge incomparable surface area, can effectively remove colourity, stink, can remove most of in secondary effluent
Organic pollution and some inorganic matters, comprising some poisonous heavy metals, to the inorganic or organic substance and glue in gas, solution
Body particle etc. has good adsorption capacity, so being widely used.Catalytic oxidation is another widely used
Method, it can be oxidized the formaldehyde into by catalyst of oxygen at normal temperatures and pressures as carbon dioxide and water, the use of catalyst
Long lifespan.
In many occasions used, it would be desirable to which activated carbon has a very strong hydrophobicity, but untreated activity
Charcoal has very strong hydrophilic absorbent, and hydrophilic activated carbon can adsorb the moisture in air, easily reaches adsorption saturation state, activity
Fine duct inside charcoal can be blocked by hydrone, no absorption regeneration ability, be reduced so as to the adsorption capacity of PARA FORMALDEHYDE PRILLS(91,95), therefore have
There is the activated carbon of hydrophobicity particularly important.Existing many patents in the preparation method of hydrophobic active charcoal（201310223296.9、
201310284996.9）, but the application of these patents has been required for a high-temperature activation or strong acid and strong base oxidation processes just to have
There is hydrophobic ability, the activated carbon by these processing can also reduce the absorption of its own not only bad for recycling and live simultaneously
Property.Also there is patent report（201210476531.9) by the use of trim,ethylchlorosilane as modifying agent, because the modifying agent is violent in toxicity
Matter, institute is in this approach very not environmentally.Existing method is not that cost higher position is that stability is poor in a word, not environmentally, or is used
Hydrophobicity reduces after a period of time.Therefore it is very necessary to explore and the method for hydrophobic active charcoal is prepared under new temperate condition.
Independent charcoal absorption relies primarily on the suction-operated of the micropore in its structure, with the extension of time, activated carbon
The absorption of PARA FORMALDEHYDE PRILLS(91,95) will reach saturation, lose absorption property.So we are by improving activated carbon avtive spot quantity, increase
The method of modifying such as the aperture of activated carbon improve the absorption property of its PARA FORMALDEHYDE PRILLS(91,95).Research to activated carbon at present be concentrated mainly on acid,
Alkali, salt are modified, and the activated carbon prepared under this kind of method simply improves the rate of adsorption and adsorption capacity of its PARA FORMALDEHYDE PRILLS(91,95), and
Can not fundamentally solve the removal of formaldehyde, can become pollution sources because of absorption is excessive on the contrary, pollute air secondary.
Catalyst for eliminating formaldehyde mainly has metal and non-precious metal catalyst, and non-precious metal catalyst is located at room temperature
It is poor to manage the ability of formaldehyde, noble metal Au, Pd, Pt etc. can efficient process formaldehyde, but the catalysis of common carried noble metal
Agent is generally required first to prepare good vector, and catalyst is being supported on carrier by reducing process afterwards, and preparation technology is complicated, cost
It is high.Therefore the method for finding simple supported catalyst is of practical significance very much.
Have in current invention individually do hydrophobic active charcoal improve hydrophobic performance, do modified activated carbon improve energy of adsorption
Power, have using catalyst formaldehyde, above three aspect factor considered but without people prepare it is a kind of both hydrophobic
And can improves adsorption capacity and also has the activated carbon of catalytic capability.
The content of the invention
It is an object of the invention to provide a kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde, with solution
The problem of being proposed in certainly above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：A kind of activated carbon of constant temperature catalyzing decomposing formaldehyde is urged
The preparation method of agent, comprises the following steps：
A, the high-temperature vapor method pretreatment of activated carbon：The cocoanut active charcoal for taking 4-8 mesh is raw material, and it is cleaned with distilled water and done
After net, it be placed in distilled water and soak 30min-40min, is then placed in 180 DEG C of -200 DEG C of drying 180min-200min in baking oven,
It is cooled to after room temperature pretreatment sample being placed in valve bag and saves backup；
B, bimetal salt solution is prepared：Chloroplatinic acid and nitrate are added in distilled water, 30min-40min is stirred at room temperature
Afterwards, bimetal salt solution is obtained；
C, modified activated carbon is prepared：
D, water-repelling agent is prepared：Organic fluorinated silicone polymer solution is added to the water, obtains mixed liquor after mixing, then to the mixed solution
Middle addition curing agent stirs, and is made into the water-repelling agent that solid content is 1%；
E, modified activated carbon is added in water-repelling agent and soaked, dried afterwards, that is, obtain activated-carbon catalyst：Will
Activated carbon modified step C is poured into step D water-repelling agent, after abundant immersion, is taken out activated carbon and is put in an oven 180
DEG C of -200 DEG C drying 180min-200min, that is, obtain activated-carbon catalyst.
Preferably, modified activated carbon preparation process includes following flow in the step C：
A, 20min-40min is soaked in the bimetal salt solution for adding the activated carbon in step A in step B；Work is taken out after b
Property charcoal and put in an oven 180 DEG C -200 DEG C drying 180min-200min；
C, activated carbon is put into calcining furnace afterwards and calcined, nitrogen is passed through in calcination process；Calcining heat is 450 DEG C -500 DEG C；
Nitrogen flow is 10-20L/min；Calcination time is 120min-150min；It is slowly cooled to room temperature, obtains modified afterwards
Activated carbon.
Preferably, modified activated carbon immersion post-baking temperature is 160 DEG C -180 DEG C in the step E, time 80min-
120min。
Preferably, the nitrate in the step B use copper nitrate, nickel nitrate, cobalt nitrate or ferric nitrate in one kind or
A variety of mixtures.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is raw material using coconut husk charcoal, has preparation technology
Simply, low cost and other advantages；It is cost-effective without washing and discharge of wastewater in catalyst preparation process in the present invention, technique letter
Change, improve the service life of activated carbon；The component for the modifying agent that the present invention uses is few, and the amount of modifying agent is also few, and it can be entered
Row accurately controls, and technique is simple, easy large-scale production；It is modified that there is super-hydrophobic, high absorption and fast room-temperature catalytic decomposition
The property of formaldehyde；In addition, modified activated carbon prepared by the present invention has 1500m2It is quick that/g specific surface area and CADR is more than 400
Adsorption capacity, and persistently the ability CCM values of decomposing formaldehyde are more than 1500mg；The present invention be different from usually it is activated carbon modified in
Acidity, alkalescence and salting liquid are modified, and we can also reach pore-creating using high-temperature vapor method, and the effect of reaming is simple to operate,
It is convenient, improve the rate of adsorption of its PARA FORMALDEHYDE PRILLS(91,95) and increase the adsorption capacity of its PARA FORMALDEHYDE PRILLS(91,95).Super-hydrophobic activated carbon in the present invention
With extraordinary hydrophobicity, place 1 month in atmosphere, PARA FORMALDEHYDE PRILLS(91,95) absorption property is without influence, service life length.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
Embodiment one：
The present invention provides following technical scheme：A kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde, including
Following steps：
A, the high-temperature vapor method pretreatment of activated carbon：The cocoanut active charcoal for taking 4 mesh is raw material, and it is cleaned up with distilled water
Afterwards, it is placed in distilled water and soaks 30min, is then placed in 180 DEG C of drying 180min in baking oven, sample will be pre-processed after being cooled to room temperature
It is placed in valve bag and saves backup；
B, bimetal salt solution is prepared：Chloroplatinic acid and nitrate are added in distilled water, after 30min is stirred at room temperature, obtained double
Metal salt solution；
C, modified activated carbon is prepared：
D, water-repelling agent is prepared：Organic fluorinated silicone polymer solution is added to the water, obtains mixed liquor after mixing, then to the mixed solution
Middle addition curing agent stirs, and is made into the water-repelling agent that solid content is 1%；
E, modified activated carbon is added in water-repelling agent and soaked, dried afterwards, that is, obtain activated-carbon catalyst：Will
Activated carbon modified step C is poured into step D water-repelling agent, after abundant immersion, is taken out activated carbon and is put in an oven 180
DEG C drying 180min, that is, obtain activated-carbon catalyst.
In the present embodiment, modified activated carbon preparation process includes following flow in step C：
A, 20min is soaked in the bimetal salt solution for adding the activated carbon in step A in step B；Activated carbon is taken out after b simultaneously
Put 180 DEG C of drying 180min in an oven；
C, activated carbon is put into calcining furnace afterwards and calcined, nitrogen is passed through in calcination process；Calcining heat is 450 DEG C；Nitrogen stream
Measure as 10L/min；Calcination time is 120min；It is slowly cooled to room temperature afterwards, obtains modified activated carbon.
In the present embodiment, modified activated carbon immersion post-baking temperature is 160 DEG C in step E, time 80min.
In the present embodiment, the nitrate in step B is using copper nitrate, nickel nitrate mixture.
Embodiment two：
A kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde, comprises the following steps：
A, the high-temperature vapor method pretreatment of activated carbon：The cocoanut active charcoal for taking 8 mesh is raw material, and it is cleaned up with distilled water
Afterwards, it is placed in distilled water and soaks 40min, is then placed in 200 DEG C of drying 200min in baking oven, sample will be pre-processed after being cooled to room temperature
It is placed in valve bag and saves backup；
B, bimetal salt solution is prepared：Chloroplatinic acid and nitrate are added in distilled water, after 40min is stirred at room temperature, obtained double
Metal salt solution；
C, modified activated carbon is prepared：
D, water-repelling agent is prepared：Organic fluorinated silicone polymer solution is added to the water, obtains mixed liquor after mixing, then to the mixed solution
Middle addition curing agent stirs, and is made into the water-repelling agent that solid content is 1%；
E, modified activated carbon is added in water-repelling agent and soaked, dried afterwards, that is, obtain activated-carbon catalyst：Will
Activated carbon modified step C is poured into step D water-repelling agent, after abundant immersion, is taken out activated carbon and is put in an oven 200
DEG C drying 200min, that is, obtain activated-carbon catalyst.
In the present embodiment, modified activated carbon preparation process includes following flow in step C：
A, 40min is soaked in the bimetal salt solution for adding the activated carbon in step A in step B；
Activated carbon is taken out after b and puts 200 DEG C of drying 200min in an oven；
C, activated carbon is put into calcining furnace afterwards and calcined, nitrogen is passed through in calcination process；Calcining heat is 500 DEG C；Nitrogen stream
Measure as 20L/min；Calcination time is 150min；It is slowly cooled to room temperature afterwards, obtains modified activated carbon.
In the present embodiment, modified activated carbon immersion post-baking temperature is 180 DEG C in step E, time 120min.
In the present embodiment, the nitrate in step B is using the mixture in cobalt nitrate, ferric nitrate.
Embodiment three：
A kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde, comprises the following steps：
A, the high-temperature vapor method pretreatment of activated carbon：The cocoanut active charcoal for taking 5 mesh is raw material, and it is cleaned up with distilled water
Afterwards, it is placed in distilled water and soaks 32min, is then placed in 185 DEG C of drying 185min in baking oven, sample will be pre-processed after being cooled to room temperature
It is placed in valve bag and saves backup；
B, bimetal salt solution is prepared：Chloroplatinic acid and nitrate are added in distilled water, after 32min is stirred at room temperature, obtained double
Metal salt solution；
C, modified activated carbon is prepared：
D, water-repelling agent is prepared：Organic fluorinated silicone polymer solution is added to the water, obtains mixed liquor after mixing, then to the mixed solution
Middle addition curing agent stirs, and is made into the water-repelling agent that solid content is 1%；
E, modified activated carbon is added in water-repelling agent and soaked, dried afterwards, that is, obtain activated-carbon catalyst：Will
Activated carbon modified step C is poured into step D water-repelling agent, after abundant immersion, is taken out activated carbon and is put in an oven 185
DEG C drying 185min, that is, obtain activated-carbon catalyst.
In the present embodiment, modified activated carbon preparation process includes following flow in step C：
A, 25min is soaked in the bimetal salt solution for adding the activated carbon in step A in step B；Activated carbon is taken out after b simultaneously
Put 185 DEG C of drying 185min in an oven；
C, activated carbon is put into calcining furnace afterwards and calcined, nitrogen is passed through in calcination process；Calcining heat is 460 DEG C；Nitrogen stream
Measure as 12L/min；Calcination time is 130min；It is slowly cooled to room temperature afterwards, obtains modified activated carbon.
In the present embodiment, modified activated carbon immersion post-baking temperature is 165 DEG C in step E, time 90min.
In the present embodiment, the nitrate in step B is using copper nitrate, cobalt nitrate mixture.
Example IV：
A kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde, comprises the following steps：
A, the high-temperature vapor method pretreatment of activated carbon：The cocoanut active charcoal for taking 7 mesh is raw material, and it is cleaned up with distilled water
Afterwards, it is placed in distilled water and soaks 38min, is then placed in 190 DEG C of drying 195min in baking oven, sample will be pre-processed after being cooled to room temperature
It is placed in valve bag and saves backup；
B, bimetal salt solution is prepared：Chloroplatinic acid and nitrate are added in distilled water, after 38min is stirred at room temperature, obtained double
Metal salt solution；
C, modified activated carbon is prepared：
D, water-repelling agent is prepared：Organic fluorinated silicone polymer solution is added to the water, obtains mixed liquor after mixing, then to the mixed solution
Middle addition curing agent stirs, and is made into the water-repelling agent that solid content is 1%；
E, modified activated carbon is added in water-repelling agent and soaked, dried afterwards, that is, obtain activated-carbon catalyst：Will
Activated carbon modified step C is poured into step D water-repelling agent, after abundant immersion, is taken out activated carbon and is put in an oven 195
DEG C drying 195min, that is, obtain activated-carbon catalyst.
In the present embodiment, modified activated carbon preparation process includes following flow in step C：
A, 38min is soaked in the bimetal salt solution for adding the activated carbon in step A in step B；Activated carbon is taken out after b simultaneously
Put 195 DEG C of drying 195min in an oven；
C, activated carbon is put into calcining furnace afterwards and calcined, nitrogen is passed through in calcination process；Calcining heat is 490 DEG C；Nitrogen stream
Measure as 18L/min；Calcination time is 145min；It is slowly cooled to room temperature afterwards, obtains modified activated carbon.
In the present embodiment, modified activated carbon immersion post-baking temperature is 175 DEG C in step E, time 110min.
In the present embodiment, the nitrate in step B is using mixture in nickel nitrate, cobalt nitrate, ferric nitrate.
Embodiment five：
A kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde, comprises the following steps：
A, the high-temperature vapor method pretreatment of activated carbon：The cocoanut active charcoal for taking 8 mesh is raw material, and it is cleaned up with distilled water
Afterwards, it is placed in distilled water and soaks 36min, is then placed in 192 DEG C of drying 188min in baking oven, sample will be pre-processed after being cooled to room temperature
It is placed in valve bag and saves backup；
B, bimetal salt solution is prepared：Chloroplatinic acid and nitrate are added in distilled water, after 36min is stirred at room temperature, obtained double
Metal salt solution；
C, modified activated carbon is prepared：
D, water-repelling agent is prepared：Organic fluorinated silicone polymer solution is added to the water, obtains mixed liquor after mixing, then to the mixed solution
Middle addition curing agent stirs, and is made into the water-repelling agent that solid content is 1%；
E, modified activated carbon is added in water-repelling agent and soaked, dried afterwards, that is, obtain activated-carbon catalyst：Will
Activated carbon modified step C is poured into step D water-repelling agent, after abundant immersion, is taken out activated carbon and is put in an oven 188
DEG C drying 192min, that is, obtain activated-carbon catalyst.
In the present embodiment, modified activated carbon preparation process includes following flow in step C：
A, 28min is soaked in the bimetal salt solution for adding the activated carbon in step A in step B；Activated carbon is taken out after b simultaneously
Put 188 DEG C of drying 188min in an oven；
C, activated carbon is put into calcining furnace afterwards and calcined, nitrogen is passed through in calcination process；Calcining heat is 470 DEG C；Nitrogen stream
Measure as 16L/min；Calcination time is 130min；It is slowly cooled to room temperature afterwards, obtains modified activated carbon.
In the present embodiment, modified activated carbon immersion post-baking temperature is 168 DEG C in step E, time 95min.
In the present embodiment, the nitrate in step B is using cobalt nitrate, nitric acid iron mixture.
Embodiment six：
A kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde, comprises the following steps：
A, the high-temperature vapor method pretreatment of activated carbon：The cocoanut active charcoal for taking 6 mesh is raw material, and it is cleaned up with distilled water
Afterwards, it is placed in distilled water and soaks 35min, is then placed in 190 DEG C of drying 190min in baking oven, sample will be pre-processed after being cooled to room temperature
It is placed in valve bag and saves backup；
B, bimetal salt solution is prepared：Chloroplatinic acid and nitrate are added in distilled water, after 35min is stirred at room temperature, obtained double
Metal salt solution；
C, modified activated carbon is prepared：
D, water-repelling agent is prepared：Organic fluorinated silicone polymer solution is added to the water, obtains mixed liquor after mixing, then to the mixed solution
Middle addition curing agent stirs, and is made into the water-repelling agent that solid content is 1%；
E, modified activated carbon is added in water-repelling agent and soaked, dried afterwards, that is, obtain activated-carbon catalyst：Will
Activated carbon modified step C is poured into step D water-repelling agent, after abundant immersion, is taken out activated carbon and is put in an oven 190
DEG C drying 190min, that is, obtain activated-carbon catalyst.
In the present embodiment, modified activated carbon preparation process includes following flow in step C：
A, 30min is soaked in the bimetal salt solution for adding the activated carbon in step A in step B；Activated carbon is taken out after b simultaneously
Put 190 DEG C of drying 190min in an oven；
C, activated carbon is put into calcining furnace afterwards and calcined, nitrogen is passed through in calcination process；Calcining heat is 475 DEG C；Nitrogen stream
Measure as 15L/min；Calcination time is 135min；It is slowly cooled to room temperature afterwards, obtains modified activated carbon.
In the present embodiment, modified activated carbon immersion post-baking temperature is 170 DEG C in step E, time 100min.
In the present embodiment, the nitrate in step B is using copper nitrate, nickel nitrate, cobalt nitrate, nitric acid iron mixture.
Experimental example：
Obtained modified activated carbon is placed in the box with blower fan, it is the closed of 100L that this box then is placed in into volume
In container, then implantation concentration is more than 1.0ug/L formaldehyde gas thereto, and detecting concentration of formaldehyde by instrument reaches 1.0ug/
Open blower fan during L, carry out room temperature formaldehyde absorbing experiment, while monitor the change of concentration of formaldehyde on-line, after 24H, concentration of formaldehyde by
It is 0.001 ug/L that 1.0ug/L, which lowers,.
The present invention is raw material using coconut husk charcoal, simple with preparation technology, low cost and other advantages；In the present invention, it is being catalyzed
Cost-effective without washing and discharge of wastewater in agent preparation process, technique simplifies, and improves the service life of activated carbon；The present invention adopts
The component of modifying agent is few, and the amount of modifying agent is also few, it accurately can be controlled, technique is simple, easy scale metaplasia
Production；The modified property with super-hydrophobic, high absorption and fast room-temperature catalytic decomposition formaldehyde；In addition, modification prepared by the present invention
Activated carbon has 1500m2/ g specific surface area and CADR is more than 400 quick adsorption abilities, and the persistently ability of decomposing formaldehyde
CCM values are more than 1500mg；The present invention be different from usually it is activated carbon modified in acidity, alkalescence and salting liquid be modified, we use
High-temperature vapor method can also reach pore-creating, and the effect of reaming is simple to operate, convenient, improve the rate of adsorption of its PARA FORMALDEHYDE PRILLS(91,95)
With the adsorption capacity for increasing its PARA FORMALDEHYDE PRILLS(91,95).Super-hydrophobic activated carbon in the present invention has extraordinary hydrophobicity, puts in atmosphere
Put 1 month, PARA FORMALDEHYDE PRILLS(91,95) absorption property is without influence, service life length.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
- A kind of 1. preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde, it is characterised in that：Comprise the following steps：A, the high-temperature vapor method pretreatment of activated carbon：The cocoanut active charcoal for taking 4-8 mesh is raw material, and it is cleaned with distilled water and done After net, it be placed in distilled water and soak 30min-40min, is then placed in 180 DEG C of -200 DEG C of drying 180min-200min in baking oven, It is cooled to after room temperature pretreatment sample being placed in valve bag and saves backup；B, bimetal salt solution is prepared：Chloroplatinic acid and nitrate are added in distilled water, 30min-40min is stirred at room temperature Afterwards, bimetal salt solution is obtained；C, modified activated carbon is prepared：D, water-repelling agent is prepared：Organic fluorinated silicone polymer solution is added to the water, obtains mixed liquor after mixing, then to the mixed solution Middle addition curing agent stirs, and is made into the water-repelling agent that solid content is 1%；E, modified activated carbon is added in water-repelling agent and soaked, dried afterwards, that is, obtain activated-carbon catalyst：Will Activated carbon modified step C is poured into step D water-repelling agent, after abundant immersion, is taken out activated carbon and is put in an oven 180 DEG C of -200 DEG C drying 180min-200min, that is, obtain activated-carbon catalyst.
- 2. a kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde according to claim 1, its feature It is：Modified activated carbon preparation process includes following flow in the step C：A, 20min-40min is soaked in the bimetal salt solution for adding the activated carbon in step A in step B；Work is taken out after b Property charcoal and put in an oven 180 DEG C -200 DEG C drying 180min-200min；C, activated carbon is put into calcining furnace afterwards and calcined, nitrogen is passed through in calcination process；Calcining heat is 450 DEG C -500 DEG C； Nitrogen flow is 10-20L/min；Calcination time is 120min-150min；It is slowly cooled to room temperature, obtains modified afterwards Activated carbon.
- 3. a kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde according to claim 1, its feature It is：Modified activated carbon immersion post-baking temperature is 160 DEG C -180 DEG C in the step E, time 80min-120min.
- 4. a kind of preparation method of the activated-carbon catalyst of constant temperature catalyzing decomposing formaldehyde according to claim 1, its feature It is：Nitrate in the step B uses one or more mixtures in copper nitrate, nickel nitrate, cobalt nitrate or ferric nitrate.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404557A (en) * | 2019-08-16 | 2019-11-05 | 昆明理工大学 | A kind of active carbon fibre Wiki catalyst and its preparation method and application |
| CN110433448A (en) * | 2019-08-20 | 2019-11-12 | 舍用环境科技(宁波)有限公司 | A kind of strong penetration type formaldehyde scavenger and preparation method thereof |
| CN111420633A (en) * | 2020-03-20 | 2020-07-17 | 西安工程大学 | Chestnut shell-based magnetic activated carbon material and preparation method thereof |
| CN112473671A (en) * | 2020-11-17 | 2021-03-12 | 上海应用技术大学 | High-performance catalyst for low-temperature catalytic oxidation of formaldehyde and preparation method and application thereof |
| CN113398665A (en) * | 2021-08-05 | 2021-09-17 | 苏州晶瑞化学股份有限公司 | Method for cleaning filter element for high-purity hydrogen peroxide production process |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377729A (en) * | 2001-04-05 | 2002-11-06 | 上海欧臣环境高科技有限责任公司 | Purifying material capable of removing organic gas in air and its preparing method |
| CN104437444A (en) * | 2014-10-14 | 2015-03-25 | 天津理工大学 | Preparation method of hydrophobic activated carbon modified material |
| CN106179219A (en) * | 2016-08-05 | 2016-12-07 | 保护伞环保科技成都有限公司 | Remove the preparation method of the modified activated carbon of low concentration formaldehyde |
| CN106809835A (en) * | 2016-12-30 | 2017-06-09 | 常州碳星科技有限公司 | A kind of method for preparing super-hydrophobic activated carbon |
| CN106824256A (en) * | 2017-03-28 | 2017-06-13 | 上海鼎颉纳米技术有限公司 | Degradation Formaldehyde catalyst and preparation method thereof |
-
2017
- 2017-09-04 CN CN201710785145.0A patent/CN107376939A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377729A (en) * | 2001-04-05 | 2002-11-06 | 上海欧臣环境高科技有限责任公司 | Purifying material capable of removing organic gas in air and its preparing method |
| CN104437444A (en) * | 2014-10-14 | 2015-03-25 | 天津理工大学 | Preparation method of hydrophobic activated carbon modified material |
| CN106179219A (en) * | 2016-08-05 | 2016-12-07 | 保护伞环保科技成都有限公司 | Remove the preparation method of the modified activated carbon of low concentration formaldehyde |
| CN106809835A (en) * | 2016-12-30 | 2017-06-09 | 常州碳星科技有限公司 | A kind of method for preparing super-hydrophobic activated carbon |
| CN106824256A (en) * | 2017-03-28 | 2017-06-13 | 上海鼎颉纳米技术有限公司 | Degradation Formaldehyde catalyst and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404557A (en) * | 2019-08-16 | 2019-11-05 | 昆明理工大学 | A kind of active carbon fibre Wiki catalyst and its preparation method and application |
| CN110433448A (en) * | 2019-08-20 | 2019-11-12 | 舍用环境科技(宁波)有限公司 | A kind of strong penetration type formaldehyde scavenger and preparation method thereof |
| CN111420633A (en) * | 2020-03-20 | 2020-07-17 | 西安工程大学 | Chestnut shell-based magnetic activated carbon material and preparation method thereof |
| CN112473671A (en) * | 2020-11-17 | 2021-03-12 | 上海应用技术大学 | High-performance catalyst for low-temperature catalytic oxidation of formaldehyde and preparation method and application thereof |
| CN113398665A (en) * | 2021-08-05 | 2021-09-17 | 苏州晶瑞化学股份有限公司 | Method for cleaning filter element for high-purity hydrogen peroxide production process |
| CN115337902A (en) * | 2022-07-04 | 2022-11-15 | 贵州师范大学 | Preparation method of hydrophobic gas-phase mercury removing agent |
| CN115337902B (en) * | 2022-07-04 | 2023-10-24 | 贵州师范大学 | Preparation method of hydrophobic gas-phase mercury removal agent |
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