CN105289298B - A kind of catalytic module for eliminating formaldehyde at room temperature and preparation method thereof - Google Patents
A kind of catalytic module for eliminating formaldehyde at room temperature and preparation method thereof Download PDFInfo
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- CN105289298B CN105289298B CN201510709013.0A CN201510709013A CN105289298B CN 105289298 B CN105289298 B CN 105289298B CN 201510709013 A CN201510709013 A CN 201510709013A CN 105289298 B CN105289298 B CN 105289298B
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Abstract
The invention discloses a kind of catalytic module for eliminating formaldehyde at room temperature and preparation method thereof, the catalytic module includes skeleton carrier, coating and catalyst layer, skeleton carrier is the foamed ceramics structure with 3 D pore canal, there are multiple ducts, duct, which is interweaved and reticulates structure and arranged direction, to be the either direction in X, Y and Z in foamed ceramics structure；Coating uniform coated in the channel surfaces in foamed ceramics structure and outer surface, catalyst layer be highly dispersed on coating.Low concentration formaldehyde can be oxidized to H by the present invention under room temperature and ambient humidity2O and CO2, there is excellent low temperature active and removal efficiency, in air speed SV=50000h‑1The removal efficiency of PARA FORMALDEHYDE PRILLS(91,95) is maintained at more than 98%.Its preparation process is simple, noble-metal-supported amount is low, it is not necessary to the auxiliary device such as light source and heating.Suitable for room, office buildings, school, dormitory, market, furniture market, automobile etc. be closed, the purification of air in semi-enclosed space.
Description
Technical field
The present invention relates to a kind of environmental catalysis material and preparation method for being used to purify air, belong to air purifying process neck
A kind of domain, and in particular to catalytic module for eliminating formaldehyde at room temperature and preparation method thereof.
Background technology
It is well known that formaldehyde is a kind of toxic gas of colourless, irritant smell at ambient temperature, it is room air
The most strong pollutant of Poisoning is polluted, formaldehyde is defined as carcinogenic, mutagenesis and deforming material by the World Health Organization, is public
The allergen recognized.Existence and health care belt of the formaldehyde to people carry out severe threat, when air formaldehyde concentration is more than 0.10mg/m3
When can the obvious stimulation upper respiratory tract.Harm of the formaldehyde to children and pregnant woman is bigger, and Environment Protect in China association statistics is shown,
Once carried out luxurious finishing in 90% leukemia children man, the children for dying from luxurious finishing every year are up to 2,100,000,70% it is pregnant
Woman miscarries and indoor formaldehyde is exceeded relevant.China《Air quality standard》(GB/T18832-2002) provide, indoor formaldehyde is most
High safe level is 0.10mg/m3, about 0.07ppm at room temperature.Main its of formaldehyde in room air is derived mainly from building dress
Particieboard, fiberboard, glued board, floor glue, breast used in decorations and finishing material, furniture, floor, metope, door and window etc.
The ornament materials such as shellac varnish, can slow within considerable time, continuously release formaldehyde, and constantly aggregation causes indoors
Concentration of formaldehyde is exceeded.Therefore, efficient formaldehyde purification techniques is developed, effectively solving Formaldehyde Pollution of Indoor Air turns into indoor air purification
Important topic.
The removing method of indoor formaldehyde mainly has absorption, low temperature plasma, photocatalysis, catalysis oxidation and bioanalysis etc..
Absorption method is that the formaldehyde in air, this method are adsorbed using the absorption property of the materials such as porous carbon, molecular sieve, silica gel, aluminum oxide
Formaldehyde is enriched in adsorbent, is not reaching to degradable purpose, formaldehyde is progressively enriched with to reach to adsorb in adsorbent and put down
Adsorbent fails during weighing apparatus.
Catalysis oxidation is the effective removing method of formaldehyde, can be oxidized the formaldehyde into as H2O and CO2.Catalysis oxidation formaldehyde
Catalyst mainly have：Noble metal systems based on Pt, Pd, Ag, Au etc., and transition metal (Mn, Fe, Ni, Co, Cu, Zn
Deng), the base metal system that complex rare-earth oxidate containing valuable metal or mixture (La, Ce, Zr, Nd, Sr, Pr etc.) are representative.Huang etc.
(Huang H, Leung D Y C, et.al., ACS Catal, 2011, (1) 4:348~354) NaBH is utilized4It is prepared by reducing process
1wt%Pd/TiO2Catalyst, it can be incited somebody to action in the case where SV=120000mL/ (gh), relative humidity are 50% and room temperature condition
10ppm formaldehyde complete oxidation.(Park S J, the Bae I, et.al., Chem.Eng.J, 2012,195-196 (0) such as Park:
392~402) point out that Mn can significantly improve the activity of Pd/Beta catalyst, (the SV=50000h at 40 DEG C-1) can be by formaldehyde
Exhaustive oxidation.(Zhang C, the He H, et.al., Catal.Today, 2007,126 (3-4) such as Zhang:345~350) exist
TiO2Area load difference noble metal, 1wt%Pt/TiO2At 20 DEG C and SV=50000h-1Can be by the complete oxygen of 100ppm formaldehyde
Change.(Peng J, the Wang S.Appl.Catal., B, 2007,74 (3-4) such as Peng:282~291) by 0.6wt%Pt/TiO2
For formaldehyde through catalytic oxidation, catalyst conversion ratio of PARA FORMALDEHYDE PRILLS(91,95) in room temperature and 60 DEG C is respectively 40%, 99.6%.Nie etc.
(Nie L, Yu J, et.al., Environ.Sci.Technol, 2013,47 (6):2777-2783) utilize the Pt/ of Na doping
TiO2Catalyst oxidation of formaldehyde, concentration of formaldehyde can be down to 15ppm by 253ppm in 60min.Patent US 5585083 will
12wt%Pt/SnO2Catalyst is used to eliminate formaldehyde in air, can bear formaldehyde exhaustive oxidation, high noble metal at -5~25 DEG C
Carrying capacity makes to improve catalyst cost, limits its application field.Patent CN1698932A utilizes Au/ rare earth oxides catalysis oxygen
Change formaldehyde, but (80~100 DEG C) PARA FORMALDEHYDE PRILLS(91,95) has preferable catalytic activity to catalyst at a higher temperature, limits catalyst
Extensive use.Patent CN103127952A eliminates formaldehyde at ambient temperature using Ag/ZSM-5, does not investigate run time, water
Influence of the steam to catalytic performance.Patent CN101274281A has invented the Pt/Co-Ce-Sn/ that a kind of Mo, Cu, Mn and Ti are modified
Cordierite honeycomb catalyst, it is that 70% time PARA FORMALDEHYDE PRILLS(91,95) has preferable catalytic activity in 18 DEG C and relative humidity.Patent
CN102247842A discloses a kind of Pt/TiO for eliminating formaldehyde at room temperature2-SnO2/ cordierite monolithic catalyst, in room temperature and
PARA FORMALDEHYDE PRILLS(91,95) has preferable removal effect under environmental damp condition.Above-mentioned patent using straight hole shape cordierite honeycomb as carrier framework,
Limit the extensive use of catalyst.
At room temperature there is the shortcomings of low temperature active is poor, short life and application are narrow in the catalyst for oxidation of formaldehyde, existing
There is monoblock type catalytic module to use straight hole shape cordierite honeycomb ceramic as carrier framework, be unfavorable for absorption and the product of reaction molecular
The desorption of molecule, reduces catalyst efficiency.
The content of the invention
The defects of for prior art and deficiency, have 3D pore passage structures, can be it is an object of the invention to provide one kind
The catalytic module of formaldehyde is eliminated under room temperature and ambient humidity, using conventional metal oxides and a small amount of noble metal as catalytic module
Active component；Catalytic module oxidation of formaldehyde has excellent low temperature active and removal efficiency, while has high stability
And water repelling property, the pressure loss before and after catalytic module is low, suitable for room, office buildings, school, dormitory, market, furniture city
Field, automobile etc. are closed, the purification of air in semi-enclosed space.
It is another object of the present invention is to provide a kind of preparation method for preparing above-mentioned catalytic module, i.e., a kind of that there is 3D holes
The preparation method of the catalytic module of the oxidation of formaldehyde of structure, the shortcomings that overcoming straight pass catalytic module in use.
The present invention realizes foregoing invention purpose using following technical scheme：A kind of catalytic module for eliminating formaldehyde at room temperature,
It is characterised in that it includes skeleton carrier, coating and catalyst layer,
The skeleton carrier is the foamed ceramics structure with 3 D pore canal, has multiple holes in the foamed ceramics structure
Road, the duct are mutually communicated and are woven into a mesh structure；
The coating uniform is coated on the channel surfaces in the foamed ceramics structure and its outer surface, described catalysis
Oxidant layer is highly dispersed on coating.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement：
Further, the material of the foamed ceramics structure is aluminum oxide, magnesia, zeolite, cordierite, mullite, violet green grass or young crops
Stone-mullite is compound, carborundum, silicon nitride, magnesia, zirconium-mullite, zirconium oxide and fused alumina zirconia it is therein a kind of or any several
The mixed materials of kind, the arranged direction of the foamed ceramics structure inner duct are the either direction in X, Y and Z-direction；
The porosity of the foamed ceramics structure is 25~90%.
Further, the coating is made up of coating precursor powder, and the coating precursor powder is Al2O3、Fe2O3、
TiO2、SiO2、CeO2、ZrO2, MgO, ZMS-5, molecular sieve, APO, SAPO, activated carbon, zeolite, montmorillonite, diatomite, Hai Pao
One kind or any several mixture or one of which or any several composite oxides in stone, attapulgite and bentonite
Or one of which or any several modified materials, the coated weight of the coating is 10~150g/L.
Coating precursor powder and coating, coating precursor powder are had the beneficial effect that using above-mentioned further technical scheme
Final coating is obtained after corresponding processing, there is stronger adhesion between coating and skeleton carrier.
Further, the catalyst layer includes active component and adjuvant component,
The active component is any one or more in Pd, Pt, Rh, Au, Ag or Ru, and the active component is by activity
Component precursor powder is made, and the active component precursor powder is the metal simple-substance with above-mentioned element, oxide, conjunction
Gold, organic salt or one kind in inorganic salts or any several mixture, load capacity of the active component on coating press institute
State and the quality of metal simple-substance is corresponded in active component be calculated as 0.05~10wt%；
The adjuvant component is in Li, Na, K, Rb, Cs, Fr, Fe, Co, Ni, Cu, Mn, Mo, Ti, Ce, Zr, Pr, Nd or Zn
Any one or more, the adjuvant component is made up of adjuvant component precursor powder, the adjuvant component precursor powder
For one kind in the metal simple-substance with above-mentioned element, oxide, alloy, organic salt or inorganic salts or any several mixing
Thing, load capacity of the adjuvant component on coating be calculated as 0.1 by the quality that metal simple-substance is corresponded in the adjuvant component~
20wt%.
A kind of preparation method for the catalytic module for eliminating formaldehyde at room temperature, above-mentioned catalytic module is prepared, including will applied as follows
Layer is coated in the foamed ceramics body structure surface by vacuum coating methods, then using infusion process or the precipitation method in coating surface
The step of supported catalyst layer is so as to obtain the catalytic module, specific operation process comprises the following steps：
(1) by the parts by weight of coating precursor powder 10~40, the parts by weight of binding agent 0.1~20, the weight of coalescents 0.01~5
Amount part and deionized water are well mixed, and the mass ratio of the deionized water and coating precursor powder is 9：1~6：4；Will mixing
Uniform slurries are placed on dispersion machine, and 20~60min is disperseed under 300~550r/min；Then it is 5~20% with mass concentration
Nitric acid or hydrochloric acid solution the pH of slurry is adjusted to pH=3~4, continue scattered 10~30min；
(2) slurries obtained by step (1) are transferred in ball mill or sand mill after 1~2h of gluing, are transferred to vacuum painting
Cover in machine storage tank, foamed ceramics structure is then placed in progress 2~20min of vacuum covering in sample bin, utilizes compressed air
Purge the unnecessary slurry in duct；
(3) the foamed ceramics structure of step (2) coating slurries is taken out, it is 45~90% to be placed in 25~40 DEG C and relative humidity
Under the conditions of conserve 4~24h after, in 60~120 DEG C of environment dry 1~12h；Afterwards will by dry foamed ceramics 200~
550 DEG C of 1~8h of roasting, obtain covering cated foamed ceramics structure；
(4) active component solution is configured, active component precursor powder is dissolved into deionized water, then in stirring bar
10~60min of ultrasound under part, deionized water dilution is added, the ratio between the volume of solution and volume of foamed ceramics structure are after dilution
1：1~3：1, add protective agent, the ratio between the protective agent and precious metal element content in active component precursor powder are 1:5
~1:30,30~90min is stirred, obtains activity component impregnation liquid, the concentration that wherein active component correspond to metal simple-substance is 5~
100mmol/mL；Adjuvant component solution is configured, adjuvant component precursor powder is added into deionized water dilution, the volume after dilution
It is 1 with the ratio between the volume of foamed ceramics structure：1~3：1, adjuvant component maceration extract is obtained, wherein adjuvant component mass concentration is
10~50%；
(5) the activity component impregnation liquid obtained by step (4) and adjuvant component maceration extract are uniformly mixed to get hybrid infusion
Liquid, the cated foamed ceramics of coating obtained in step (3) is placed in mixed impregnant liquor 1~10min of dipping, in room temperature and
Dry in the shade under ambient humidity, in 50~100 DEG C of dry 1~12h, then roasted in air or nitrogen or hydrogen stream in 200~550 DEG C
Burn 2~8h and obtain catalytic module；
Or the cated foamed ceramics that covers obtained by step (3) is placed in 1~10min of dipping in activity component impregnation liquid,
In 50~100 DEG C of dry 1~12h after being dried in the shade under room temperature and ambient humidity, be subsequently placed in dipping 1 in adjuvant component maceration extract~
30s, in 50~100 DEG C of dry 1~12h after taking-up, then it is calcined 2 in 200~550 DEG C in air or nitrogen or hydrogen stream~
8h obtains catalytic module；
Or the cated foamed ceramics that covers obtained by step (3) is placed in 1~30s of dipping in adjuvant component maceration extract, take
In 50~100 DEG C of dry 1~12h after going out, 1~10min of dipping, room temperature and environment in activity component impregnation liquid are then placed on
In 50~100 DEG C of dry 1~12h after being dried in the shade under humidity, then 2 are calcined in 200~550 DEG C in air or nitrogen or hydrogen stream
~8h obtains catalytic module；
Or uniformly mix the active component solution obtained by step (4) and adjuvant component solution, added into mixed solution
10~40 parts of coating precursor powder, 0.1~20 part of binding agent, 0.01~5 part of coalescents, are added and coating precursor powder
The mass ratio at end is 9：1~6：4 deionized water is diluted to obtain mixed serum, and mixed serum is placed on dispersion machine
Disperse 20~60min under 300~550r/min, and with mass concentration for 5~20% nitric acid or hydrochloric acid solution by the pH of slurry
Regulation is transferred into ball mill or sand mill after 1~2h of gluing after continuing scattered 10~30min, shifted to pH=3~4
Into vacuum coaters storage tank, foamed ceramics structure is then placed in progress 2~20min of vacuum covering in sample bin, utilized
Unnecessary slurry in compressed air purging duct；It is subsequently placed under the conditions of 25~40 DEG C and relative humidity are 45~90% and conserves 4
After~24h, 1~12h is dried in 60~120 DEG C of environment；It will be calcined at 200~550 DEG C 1 by dry foamed ceramics afterwards~
8h, obtain catalytic module.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement：
Further, described binding agent is inorganic binder or organic binder bond.
Further, the inorganic binder include Ludox, Alumina gel, silicon-aluminum sol, waterglass, titanium colloidal sol, aluminum phosphate,
One kind in aluminium dihydrogen phosphate and clay any several combines.
Further, the organic binder bond includes cellulose, polyvinyl alcohol (PVA), polyethylene glycol oxide (PEO), polypropylene
Acid amides (PAM) and one kind in polyurethane any several combine.
Further, the coalescents are sodium metasilicate, calgon, bentonite, cetyl trimethylammonium bromide, ten
Sodium dialkyl sulfate, neopelex, TBAB, P123, F127, polyoxyethylene laurel ether, poly alkyl alcohol
Oxygen vinethene, polyethylene glycol, ethylene glycol, glycerine, butanol, isobutanol, butyl glycol ether, propylene glycol monomethyl ether, acetylacetone,2,4-pentanedione,
Dimethyl silicone polymer, monoethanolamine, diethanol amine, triethanolamine, acrylate and one kind in organically-modified silica alkane or
Any several combinations.
Further, described protective agent is anion surfactant, cationic surfactant, non-ionic surface work
Property agent, amphoteric surfactant and compound surfactant in one kind or any several combinations.
Beneficial effect using above-mentioned further technical scheme is that the active component precursor powder described in step (4) is
Refer to activity component metal simple substance, oxide, inorganic salts or organic salt.Presoma such as Pt active components can be platinum nitrate, chlorine
Platinic acid, acetylacetone,2,4-pentanedione platinum etc..Different presomas have been embodied in embodiment.
Compared with prior art, catalytic module provided by the present invention has 3D pore passage structures, overcomes traditional straight hole honeybee
The shortcomings that nest shape integral catalyzer, improve catalytic activity and purification efficiency.The present invention has advantages below：
(1) catalytic module oxidation of formaldehyde of the invention has excellent low temperature active and removal efficiency, can be thorough by formaldehyde
Bottom is oxidized to CO2And H2O, the secondary pollutions such as carbon monoxide, formic acid and methyl formate are not produced.
(2) catalytic module of the invention has high stability and water repelling property, suitable for disappearing under room temperature and ambient humidity
Except formaldehyde pollution, at work between in the range of the removal efficiency of formaldehyde of PARA FORMALDEHYDE PRILLS(91,95) be positively retained at more than 98%.
(3) duct of catalytic module of the invention is interlaced 3D structures, has larger apparent pore and compares surface
Product, is advantageous to the quick progress of catalytic reaction, accelerates reaction molecular absorption, the desorption rate of product molecule, and then improve
The reaction rate and transformation efficiency of formaldehyde.
(4) catalytic module preparation process of the invention is simple and convenient to operate, noble-metal-supported amount is low, the pressure loss is low, no
The affiliated facilities such as light source, heating are needed, energy consumption has been saved while cost is reduced.
In summary, catalytic module of the present invention, different shapes can be made according to different demands and use occasion
Shape and dimensions, such as cuboid, square, cylinder and curved body.It is under room temperature and environmental damp condition to air
In formaldehyde there is good catalytic activity, can be H by HCHO exhaustive oxidations2O and CO2, suitable for removing family room, doing
Public building, market, building materials market and warehouse, the vehicles etc. are closed, the trace formaldehyde in semi-enclosed space air, net in air
Change, there is good application prospect in terms of Fresh air handing and industrial waste gas processing.
Brief description of the drawings
Fig. 1 is the pictorial diagram of catalytic module of the present invention；
Fig. 2 is the sectional skeleton diagram of catalytic module of the present invention；
Fig. 3 is the removal efficiency of catalytic module PARA FORMALDEHYDE PRILLS(91,95) of the present invention；
Fig. 4 is catalytic module stability test curve of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, skeleton carrier, 2, coating, 3, catalyst layer, 4, duct.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in figure 1, a kind of catalytic module for eliminating formaldehyde at room temperature, including skeleton carrier 1, coating 2 and catalyst layer
3,
The skeleton carrier 1 is the foamed ceramics structure with 3 D pore canal, is had in the foamed ceramics structure multiple
Duct 4, the duct 4 are mutually communicated and are woven into a mesh structure；
The coating 2 is coated uniformly on the surface of duct 4 and its outer surface in the foamed ceramics structure, and described urges
Agent layer 3 is highly dispersed on coating 2.
The material of the foamed ceramics structure is aluminum oxide, magnesia, zeolite, cordierite, mullite, cordierite-do not come
Stone is compound, carborundum, silicon nitride, magnesia, zirconium-mullite, zirconium oxide and fused alumina zirconia it is therein a kind of or any several mixed
Material is closed, the arranged direction of the foamed ceramics structure inner duct 4 is the either direction in X, Y and Z-direction；
The porosity of the foamed ceramics structure is 25~90%.
The coating 2 is made up of coating precursor powder, and the coating precursor powder is Al2O3、Fe2O3、TiO2、
SiO2、CeO2、ZrO2, MgO, ZMS-5, molecular sieve, APO, SAPO, activated carbon, zeolite, montmorillonite, diatomite, sepiolite, bumps
Rod soil and one kind in bentonite or any several mixture or one of which or any several composite oxides or wherein
A kind of or any several modified materials, the coated weight of the coating 2 is 10~150g/L.
The catalyst layer 3 includes active component and adjuvant component,
The active component is any one or more in Pd, Pt, Rh, Au, Ag or Ru, and the active component is by activity
Component precursor powder is made, and the active component precursor powder is the metal simple-substance with above-mentioned element, oxide, conjunction
Gold, organic salt or one kind in inorganic salts or any several mixture, load capacity of the active component on coating 2 press institute
State and the quality of metal simple-substance is corresponded in active component be calculated as 0.05~10wt%；
The adjuvant component is in Li, Na, K, Rb, Cs, Fr, Fe, Co, Ni, Cu, Mn, Mo, Ti, Ce, Zr, Pr, Nd or Zn
Any one or more, the adjuvant component is made up of adjuvant component precursor powder, the adjuvant component precursor powder
For one kind in the metal simple-substance with above-mentioned element, oxide, alloy, organic salt or inorganic salts or any several mixing
Thing, load capacity of the adjuvant component on coating 2 be calculated as 0.1 by the quality that metal simple-substance is corresponded in the adjuvant component~
20wt%.
A kind of preparation method for the catalytic module for eliminating formaldehyde at room temperature, above-mentioned catalytic module is prepared, including will applied as follows
Layer 2 is coated in the foamed ceramics body structure surface by vacuum coating methods, then using infusion process or the precipitation method in the table of coating 2
The step of face supported catalyst layer 3 is so as to obtain the catalytic module, specific operation process comprises the following steps：
(1) by the parts by weight of coating precursor powder 10~40, the parts by weight of binding agent 0.1~20, the weight of coalescents 0.01~5
Amount part and deionized water are well mixed, and the mass ratio of the deionized water and coating precursor powder is 9：1~6：4；Will mixing
Uniform slurries are placed on dispersion machine, and 20~60min is disperseed under 300~550r/min；Then it is 5~20% with mass concentration
Nitric acid or hydrochloric acid solution the pH of slurry is adjusted to pH=3~4, continue scattered 10~30min；
(2) slurries obtained by step (1) are transferred in ball mill or sand mill after 1~2h of gluing, are transferred to vacuum painting
Cover in machine storage tank, foamed ceramics structure is then placed in progress 2~20min of vacuum covering in sample bin, utilizes compressed air
Purge the unnecessary slurry in duct 4；
(3) the foamed ceramics structure of step (2) coating slurries is taken out, it is 45~90% to be placed in 25~40 DEG C and relative humidity
Under the conditions of conserve 4~24h after, in 60~120 DEG C of environment dry 1~12h；Afterwards will by dry foamed ceramics 200~
550 DEG C of 1~8h of roasting, obtain being covered with the foamed ceramics structure of coating 2；
(4) active component solution is configured, active component precursor powder is dissolved into deionized water, then in stirring bar
10~60min of ultrasound under part, deionized water dilution is added, the ratio between the volume of solution and volume of foamed ceramics structure are after dilution
1：1~3：1, add protective agent, the ratio between the protective agent and precious metal element content in active component precursor powder are 1:5
~1:30,30~90min is stirred, obtains activity component impregnation liquid, the concentration that wherein active component correspond to metal simple-substance is 5~
100mmol/mL；Adjuvant component solution is configured, adjuvant component precursor powder is added into deionized water dilution, the volume after dilution
It is 1 with the ratio between the volume of foamed ceramics structure：1~3：1, adjuvant component maceration extract is obtained, wherein adjuvant component mass concentration is
10~50%；
(5) the activity component impregnation liquid obtained by step (4) and adjuvant component maceration extract are uniformly mixed to get hybrid infusion
Liquid, the foamed ceramics coated with coating 2 obtained in step (3) is placed in 1~10min of dipping in mixed impregnant liquor, in room temperature
And dried in the shade under ambient humidity, in 50~100 DEG C of dry 1~12h, then in 200~550 DEG C in air or nitrogen or hydrogen stream
2~8h of roasting obtains catalytic module；
Or the foamed ceramics for being covered with coating 2 obtained by step (3) is placed in 1~10min of dipping in activity component impregnation liquid,
In 50~100 DEG C of dry 1~12h after being dried in the shade under room temperature and ambient humidity, be subsequently placed in dipping 1 in adjuvant component maceration extract~
30s, in 50~100 DEG C of dry 1~12h after taking-up, then it is calcined 2 in 200~550 DEG C in air or nitrogen or hydrogen stream~
8h obtains catalytic module；
Or the foamed ceramics for being covered with coating 2 obtained by step (3) is placed in 1~30s of dipping in adjuvant component maceration extract, take
In 50~100 DEG C of dry 1~12h after going out, 1~10min of dipping, room temperature and environment in activity component impregnation liquid are then placed on
In 50~100 DEG C of dry 1~12h after being dried in the shade under humidity, then 2 are calcined in 200~550 DEG C in air or nitrogen or hydrogen stream
~8h obtains catalytic module；
Or uniformly mix the active component solution obtained by step (4) and adjuvant component solution, added into mixed solution
10~40 parts of coating precursor powder, 0.1~20 part of binding agent, 0.01~5 part of coalescents, are added and coating precursor powder
The mass ratio at end is 9：1~6：4 deionized water is diluted to obtain mixed serum, and mixed serum is placed on dispersion machine
Disperse 20~60min under 300~550r/min, and with mass concentration for 5~20% nitric acid or hydrochloric acid solution by the pH of slurry
Regulation is transferred into ball mill or sand mill after 1~2h of gluing after continuing scattered 10~30min, shifted to pH=3~4
Into vacuum coaters storage tank, foamed ceramics structure is then placed in progress 2~20min of vacuum covering in sample bin, utilized
Unnecessary slurry in compressed air purging duct 4；It is subsequently placed under the conditions of 25~40 DEG C and relative humidity are 45~90% and conserves 4
After~24h, 1~12h is dried in 60~120 DEG C of environment；It will be calcined at 200~550 DEG C 1 by dry foamed ceramics afterwards~
8h, obtain catalytic module.
Described binding agent is inorganic binder or organic binder bond.
The inorganic binder includes Ludox, Alumina gel, silicon-aluminum sol, waterglass, titanium colloidal sol, aluminum phosphate, di(2-ethylhexyl)phosphate
One kind in hydrogen aluminium and clay any several combines.
The organic binder bond includes cellulose, polyvinyl alcohol (PVA), polyethylene glycol oxide (PEO), polyacrylamide
(PAM) one kind and in polyurethane any several combines.
The coalescents are sodium metasilicate, calgon, bentonite, cetyl trimethylammonium bromide, dodecyl
Sodium sulphate, neopelex, TBAB, P123, F127, polyoxyethylene laurel ether, aliphatic alcohol polyethenoxy
Ether, polyethylene glycol, ethylene glycol, glycerine, butanol, isobutanol, butyl glycol ether, propylene glycol monomethyl ether, acetylacetone,2,4-pentanedione, poly- diformazan
Radical siloxane, monoethanolamine, diethanol amine, triethanolamine, acrylate and one kind or any several in organically-modified silica alkane
Kind combination.
Described protective agent is anion surfactant, cationic surfactant, nonionic surface active agent, two
Property surfactant and one kind in compound surfactant or any several combinations.
In order to better illustrate catalytic module of the present invention, the present invention is carried out specifically with reference to embodiment
Bright, embodiment is to The present invention gives embodiment and operating process, but protection scope of the present invention includes but is not limited to
Following embodiments.
The foamed ceramics body structure surface applying coating 2 of embodiment 1：
Embodiment 1-1：
By 50g TiO2(A types), 1.5g HPMC-6000,0.25g AEOs (R=C16~18, n=
And 250mL H 20)2O is well mixed, and is placed on dispersion machine under 350r/min and is disperseed 30min, molten with the nitric acid that concentration is 10%
Liquid adjusts pH=3~4 of slurry, continues scattered 15min；Transfer the slurry into sand mill and vacuum painting is transferred to after gluing 1.5h
Cover in machine storage tank, the foam silicon carbide ceramics structure that size is 100 × 100 × 20mm then is placed in into vacuum in sample bin applies
10min is covered, utilizes unnecessary slurry in compressed air purging duct 4.
The foamed ceramics for coating slurries is placed in the curing box that 25 DEG C and relative humidity are 70% and conserves 6h, it is dry at 80 DEG C
After dry 6h, carrier 1-1 is obtained after being calcined 4.0h in 400 DEG C in the air stream, the coated weight of coating 2 is 57.8g/L.
Embodiment 1-2：
It is with the different parts of embodiment 1-1：Carrier changes Al into2O3Foamed ceramics, binding agent change PVA-2488 into, into
Film auxiliary agent changes dimethyl silicone polymer into, and remaining process obtains carrier 1-2, the coating rate of coating 2 is 59.3g/ with embodiment 1-1
L。
Embodiment 1-3：
It is with the different parts of embodiment 1-1：Carrier changes cordierite foamed ceramics into, remaining process with embodiment 1-1,
Carrier 1-3 is obtained, the coating rate of coating 2 is 62.2g/L.
Embodiment 1-4：
It is with the different parts of embodiment 1-1：Coating material TiO2(A types) changes γ-Al into2O3, binding agent HPMC-
6000, coalescents be remaining process of dimethyl silicone polymer with embodiment 1-1, obtain carrier 1-2, the coating rate of coating 2 is
63.8g/L。
Embodiment 1-5：
It is with the different parts of embodiment 1-1：Coating material 50gTiO2(A types) changes 40g TiO into2(A types)+10g γ-
Al2O3Remaining process obtains carrier 1-5, the coating rate of coating 2 is 64.1g/L with embodiment 1-1.
The load active component of embodiment 2 and adjuvant component：
Embodiment 2-1：
By 0.289g PdCl2Heating stirring is added in the hydrochloric acid solution that 16.4mL concentration is 0.6% to being completely dissolved,
IONS OF H is spent after ultrasonic disperse 20min2O is diluted to 250mL, the volume of foamed ceramics of the active component solution with being covered with coating 2
Than for 1.25：1, add 4.34g surfactants polyvinylpyrrolidone (PVP)
Stirring 40min obtains activity component impregnation liquid, polyvinylpyrrolidone (PVP) and PdCl2Mass ratio be 15：1；
The foamed ceramics structure for being covered with coating 2 obtained by embodiment 1-1 is placed in activity component impregnation liquid and impregnates 5min, room temperature and ring
In 80 DEG C of dry 4h after being dried in the shade under the humidity of border, then it is calcined 4.0h in 350 DEG C in the air stream and obtains catalytic module 2-1, coating 2
Surface Pd load capacity is calculated as 1.0wt% with simple substance.
By 0.289g PdCl2Heating stirring is added in the hydrochloric acid solution that 16.4mL concentration is 0.6% to being completely dissolved,
IONS OF H is spent after ultrasonic disperse 20min2O is diluted to 250mL, adds the stirring of 4.34g surfactants polyvinylpyrrolidone
40min obtains activity component impregnation liquid；The foamed ceramics structure for being covered with coating 2 obtained by embodiment 1-1 is placed in active component
5min is impregnated in maceration extract, in 80 DEG C of dry 4h after being dried in the shade under room temperature and ambient humidity, is then calcined in the air stream in 350 DEG C
4.0h obtains catalytic module 2-1, and the surface Pd of coating 2 load capacity is calculated as 1.0wt% with simple substance.
Embodiment 2-2：
It is with the different parts of embodiment 2-1：PdCl2Quality be changed into 0.145g, hydrochloric acid solution volume is changed into
8.2mL, the quality of polyvinylpyrrolidone are changed into 2.17g, and remaining process obtains catalytic module 2-2, coating 2 with embodiment 2-1
Surface Pd load capacity is calculated as 0.5wt% with simple substance.
Embodiment 2-3：
It is with the different parts of embodiment 2-1：By 0.766g H2PtCl6·6H2O is dissolved into 250mLH2In O, ultrasound
Scattered 20min, adds 11.49g polyvinylpyrrolidones stirring 40min, and remaining process obtains catalytic module with embodiment 2-1
2-3, the surface Pt of coating 2 load capacity are calculated as 2.0wt% with simple substance.
Embodiment 2-4：
It is with the different parts of embodiment 2-3：By H2PtCl6·6H2O quality is changed into 0.383g, polyvinylpyrrolidine
Ketone quality is changed into 5.75g, and remaining process obtains catalytic module 2-4, the surface Pt of coating 2 load capacity is with simple substance with embodiment 2-3
It is calculated as 1.0wt%.
Embodiment 2-5：
It is with the different parts of embodiment 2-3：By H2PtCl6·6H2O quality is changed into 0.192g, polyvinylpyrrolidine
Ketone quality is changed into 2.88g, and remaining process obtains catalytic module 2-5, the surface Pt of coating 2 load capacity is with simple substance with embodiment 2-3
It is calculated as 0.5wt%.
Embodiment 2-6：
It is with the different parts of embodiment 2-3：By 0.308g K2PtCl4It is dissolved into 250mLH2In O, ultrasonic disperse
20min, add 5.41g cetyl trimethylammonium bromides stirring 40min (1：20), remaining process is urged with embodiment 2-6
Change module 2-6, the surface Pt of coating 2 load capacity is calculated as 1.0wt% with simple substance.
Embodiment 2-7：
By 0.308g K2PtCl4It is dissolved into 250mLH2In O, ultrasonic disperse 20min, 5.41g cetyl trimethyls are added
Ammonium bromide stirs 40min, and the foamed ceramics structure for being covered with coating 2 obtained by embodiment 1-1 is placed in maceration extract and impregnates 5min,
In 80 DEG C of dry 4h after being dried in the shade under room temperature and ambient humidity；It is subsequently placed in 5% Na2CO330s is impregnated in solution, 80 after taking-up
DEG C dry 4h, in the air stream in 350 DEG C be calcined 4.0h obtain catalytic module 2-7, coating 2 surface Pt, Na load capacity are with list
Matter meter is respectively 1.0wt% and 2.0wt%.
Embodiment 2-8：
It is with the different parts of embodiment 2-7：The foamed ceramics for being covered with coating 2 obtained by embodiment 1-1 is placed in 5%
Na2CO330s is impregnated in solution, in 80 DEG C of dry 4h；Then it is soaked in containing cetyl trimethylammonium bromide solution
In 80 DEG C of dry 4h after being dried in the shade under stain 5min, room temperature and ambient humidity.Remaining process obtains catalytic module 2- with embodiment 2-7
8, coating 2 surface Pt, Li load capacity are respectively 1.0wt% and 2wt% in terms of simple substance.
Embodiment 2-9：
It is with the different parts of embodiment 2-7：By 5% Na2CO3Solution changes 5% Li into2CO3Solution, remaining mistake
Journey obtains catalytic module 2-9 with embodiment 2-7, coating 2 surface Pt, Li load capacity be respectively in terms of simple substance 1.0wt% and
2wt%.
Embodiment 3：
By 1.06g K2PtCl4With 2.31g Na2CO3It is dissolved into 250mL H2Stirred in O, add 50g thereto
TiO2(A types), 1.5g HPMC-6000 and 0.25g AEO (R=C16~18, n=20) are well mixed, put
In disperseing 30min on dispersion machine under 350r/min, pH=3~4 of slurries are adjusted with the salpeter solution that concentration is 10%, are continued
Scattered 15min.Transfer the slurry into sand mill and be transferred to after gluing 1.5h in vacuum coaters storage tank, be then by size
100 × 100 × 20mm foam silicon carbide ceramics structure is placed in vacuum covering 10min in sample bin, and is blown using compressed air
Unnecessary slurry in cleaning bottom of hole road 4.
The foamed ceramics structure for coating slurries is placed in the curing box that 25 DEG C and relative humidity are 70% and conserves 6h, 80
After DEG C drying 4h, it is calcined 4.0h in 350 DEG C in the air stream and obtains catalytic module 3, the coated weight of coating 2 is 58.3g/L, coating 2
Surface Pt, Na load capacity are respectively 1.0wt% and 2wt% in terms of simple substance.
Embodiment 4：
Difference from Example 3 is：The catalytic module of slurries is coated through conserving, after drying, in 5%H2+ 95%N2(V/
V 4.0h) is calcined in air-flow at 350 DEG C and obtains catalytic module 3, the coated weight of coating 2 is 58.3g/L, and coating 2 surface Pt, Na's is negative
Carrying capacity is respectively 1.0wt% and 2wt% in terms of simple substance.
Test case：
Catalytic activity is in 1m3Laboratory Module in tested, respectively with embodiment 2-1~2-8, embodiment 3 and embodiment 4
Exemplified by, test the removal efficiency of the catalytic module PARA FORMALDEHYDE PRILLS(91,95) under room temperature and environmental damp condition.Test condition is：Concentration of formaldehyde is
10ppm, air balance, reaction velocity SV=50000h-1, test temperature is 25 DEG C, humidity 60%, and formaldehyde utilizes island in gas
The gas chromatograph of Tianjin 2020 exists
Line is determined, and the purification efficiency of catalytic module PARA FORMALDEHYDE PRILLS(91,95) is calculated using point concentration of initial and testing time.
The purification efficiency of the catalytic module of table 1 PARA FORMALDEHYDE PRILLS(91,95) under the conditions of test case
As shown in Figure 3 and Figure 4, the removal efficiency of catalytic module PARA FORMALDEHYDE PRILLS(91,95) and catalytic module stability test curve, by Fig. 2
Understand, catalytic module PARA FORMALDEHYDE PRILLS(91,95) degraded under room temperature and environmental damp condition has excellent catalytic activity, the degraded of PARA FORMALDEHYDE PRILLS(91,95)
Efficiency is maintained at more than 95%；In stability curve shown in Fig. 3, the degradation efficiency of catalyst module PARA FORMALDEHYDE PRILLS(91,95) is kept not substantially
Become, after continuous operation 120h, the degradation efficiency of PARA FORMALDEHYDE PRILLS(91,95) remains at more than 95%, with higher catalytic activity and stably
Property.
Embodiment of the present invention is merely to embodiment and operating process are described in detail, but the present invention
Protection domain is not limited to operating process and step described in embodiment, that is, does not mean that the present invention is necessarily dependent upon above-mentioned system
Standby process and step could be implemented.The technical staff in the field is it will be clearly understood that any improvement in the present invention, to institute of the present invention
Addition and change, selection of embodiment of the equivalence replacements such as raw material, material, size and auxiliary element etc. are selected, is all fallen within
Within the scope of protection scope of the present invention and disclosure.
Claims (8)
1. a kind of preparation method for the catalytic module for eliminating formaldehyde at room temperature, it is characterised in that pass through coating including as follows true
Empty painting method is coated in foamed ceramics body structure surface, then using infusion process or the precipitation method in coating surface supported catalyst layer
The step of so as to obtain the catalytic module, specific operation process comprises the following steps：
(1) by the parts by weight of coating precursor powder 10~40, the parts by weight of binding agent 0.1~20, the parts by weight of coalescents 0.01~5
It is well mixed with deionized water, the mass ratio of the deionized water and coating precursor powder is 9：1~6：4；Will be well mixed
Slurries be placed on dispersion machine, under 300~550r/min disperse 20~60min；Then with the nitre that mass concentration is 5~20%
Acid or hydrochloric acid solution adjust the pH of slurries to pH=3~4, continue scattered 10~30min；
(2) slurries obtained by step (1) are transferred in ball mill or sand mill after 1~2h of gluing, are transferred to vacuum coaters
In storage tank, foamed ceramics structure is then placed in progress 2~20min of vacuum covering in sample bin, utilizes compressed air purging
Unnecessary slurries in duct；
(3) the foamed ceramics structure of step (2) coating slurries is taken out, it is 45~90% conditions to be placed in 25~40 DEG C and relative humidity
After 4~24h of lower maintenance, 1~12h is dried in 60~120 DEG C of environment；Afterwards by the foamed ceramics by drying at 200~550 DEG C
1~8h is calcined, obtains coating cated foamed ceramics structure；
(4) active component solution is configured, active component precursor powder is dissolved into deionized water, then under agitation
10~60min of ultrasound, deionized water dilution is added, the ratio between volume of the volume of solution and foamed ceramics structure is 1 after dilution：1
~3：1, add protective agent, the ratio between the protective agent and precious metal element content in active component precursor powder are 1:5~
1:30,30~90min is stirred, obtains activity component impregnation liquid, the concentration that wherein active component correspond to metal simple-substance is 5~
100mmol/mL；Adjuvant component solution is configured, adjuvant component precursor powder is added into deionized water dilution, the volume after dilution
It is 1 with the ratio between the volume of foamed ceramics structure：1~3：1, adjuvant component maceration extract is obtained, wherein adjuvant component mass concentration is
10~50%；
(5) the activity component impregnation liquid obtained by step (4) and adjuvant component maceration extract are uniformly mixed to get mixed impregnant liquor, will
The cated foamed ceramics of coating obtained in step (3) is placed in 1~10min of dipping in mixed impregnant liquor, in room temperature and environment
Dried in the shade under humidity, in 50~100 DEG C of dry 1~12h, be then calcined 2 in 200~550 DEG C in air or nitrogen or hydrogen stream
~8h obtains catalytic module；
Or the cated foamed ceramics of coating obtained by step (3) is placed in 1~10min of dipping, room in activity component impregnation liquid
In 50~100 DEG C of dry 1~12h after being dried in the shade under temperature and ambient humidity, 1~30s of dipping in adjuvant component maceration extract is subsequently placed in,
In 50~100 DEG C of dry 1~12h after taking-up, then it is calcined 2~8h in 200~550 DEG C in air or nitrogen or hydrogen stream and obtains
To catalytic module；
Or the cated foamed ceramics of coating obtained by step (3) is placed in 1~30s of dipping in adjuvant component maceration extract, take out
Afterwards in 50~100 DEG C of dry 1~12h, 1~10min of dipping, room temperature and environmental wet in activity component impregnation liquid are then placed on
In 50~100 DEG C of dry 1~12h after being dried in the shade under degree, then it is calcined 2 in 200~550 DEG C in air or nitrogen or hydrogen stream~
8h obtains catalytic module；
There are multiple ducts in the foamed ceramics structure, the duct is mutually communicated and is woven into a mesh structure；The foam
The porosity of ceramic structure is 25~90%；The material of the foamed ceramics structure be aluminum oxide, magnesia, zeolite, cordierite,
Mullite, dichroite-mullite are compound, carborundum, silicon nitride, magnesia, zirconium-mullite, zirconium oxide and fused alumina zirconia it is therein
A kind of or any several mixed materials, the arranged direction of the foamed ceramics structure inner duct are any in X, Y and Z-direction
Direction；
The active component is any one or more in Pd, Pt, Rh, Au, Ag or Ru, and the active component is by active component
Precursor powder is made, and the active component precursor powder is the metal simple-substance with above-mentioned element, oxide, alloy, had
One kind or any several mixture, load capacity of the active component on coating in machine salt or inorganic salts press the activity
The quality that metal simple-substance is corresponded in component is calculated as 0.05~10wt%；
The adjuvant component is appointing in Li, Na, K, Rb, Cs, Fr, Fe, Co, Ni, Cu, Mn, Mo, Ti, Ce, Zr, Pr, Nd or Zn
Meaning is one or more, and the adjuvant component is made up of adjuvant component precursor powder, and the adjuvant component precursor powder is tool
There are one kind in metal simple-substance, oxide, alloy, organic salt or the inorganic salts of above-mentioned element or any several mixture, institute
State load capacity of the adjuvant component on coating and be calculated as 0.1~20wt% by the quality that metal simple-substance is corresponded in the adjuvant component；
The catalyst layer includes active component and adjuvant component.
A kind of 2. preparation method of catalytic module for eliminating formaldehyde at room temperature described in claim 1, it is characterised in that the painting
Layer is made up of coating precursor powder, and the coating precursor powder is Al2O3、Fe2O3、TiO2、SiO2、CeO2、ZrO2、MgO、
One in ZMS-5, molecular sieve, APO, SAPO, activated carbon, zeolite, montmorillonite, diatomite, sepiolite, attapulgite and bentonite
Kind or any several mixture or one of which or any several modified materials, the coated weight of the coating for 10~
150g/L。
3. the preparation method of a kind of catalytic module for eliminating formaldehyde at room temperature described in claim 1, it is characterised in that described
Binding agent is inorganic binder or organic binder bond.
A kind of 4. preparation method of catalytic module for eliminating formaldehyde at room temperature described in claim 3, it is characterised in that the nothing
Machine binding agent is included in Ludox, Alumina gel, silicon-aluminum sol, waterglass, titanium colloidal sol, aluminum phosphate, aluminium dihydrogen phosphate and clay
It is a kind of or any several combine.
5. the preparation method of a kind of catalytic module for eliminating formaldehyde at room temperature described in claim 3, it is characterised in that described to have
Machine binding agent is included in cellulose, polyvinyl alcohol (PVA), polyethylene glycol oxide (PEO), polyacrylamide (PAM) and polyurethane
It is a kind of or any several combine.
A kind of 6. preparation method of catalytic module for eliminating formaldehyde at room temperature described in claim 1, it is characterised in that
The coalescents are sodium metasilicate, calgon, bentonite, cetyl trimethylammonium bromide, dodecyl sulphate
It is sodium, neopelex, TBAB, P123, F127, polyoxyethylene laurel ether, AEO, poly-
Ethylene glycol, ethylene glycol, glycerine, butanol, isobutanol, butyl glycol ether, propylene glycol monomethyl ether, acetylacetone,2,4-pentanedione, poly dimethyl silicon
Oxygen alkane, monoethanolamine, diethanol amine, triethanolamine, acrylate and one kind or any several groups in organically-modified silica alkane
Close.
7. the preparation method of a kind of catalytic module for eliminating formaldehyde at room temperature described in claim 1, it is characterised in that described
Protective agent be anion surfactant, cationic surfactant, nonionic surface active agent, amphoteric surfactant and
One kind or any several combinations in compound surfactant.
8. prepared by a kind of preparation method of catalytic module for eliminating formaldehyde at room temperature using as described in claim any one of 1-7
Catalytic module.
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Families Citing this family (36)
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| CN115870006B (en) * | 2022-11-29 | 2024-05-31 | 北京工业大学 | Ceramic matrix composite for degrading low-concentration formaldehyde and preparation method thereof |
| CN115925440A (en) * | 2022-12-15 | 2023-04-07 | 湘潭大学 | Preparation method of sepiolite-based porous ceramic for removing phosphorus from black and odorous water body |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4826789B2 (en) * | 2006-12-25 | 2011-11-30 | 三菱電機株式会社 | Catalyst production method and catalyst body |
| CN101357238A (en) * | 2007-07-31 | 2009-02-04 | 上海大今实业有限公司 | Normal-pressure low-temperature plasma catalysis method for removing benzene, toluene and xylene from air in door (car) |
| CN101797475A (en) * | 2009-02-10 | 2010-08-11 | 李溪 | Monolithic catalyst for simultaneously removing formaldehyde, carbon monoxide and ozone at room temperature |
| CN102114428B (en) * | 2009-12-31 | 2012-09-26 | 中国船舶重工集团公司第七一八研究所 | Monolithic catalyst used for oxidizing CO and methanal under ordinary temperature and preparation method thereof |
| CN101757902A (en) * | 2010-01-12 | 2010-06-30 | 海盐华强树脂有限公司 | Method for preparing composite photocatalyst containing activated carbon coating |
| CN102836712A (en) * | 2011-06-24 | 2012-12-26 | 上海牛翼新能源科技有限公司 | Catalyst for completely removing formaldehyde in indoor air at room temperature |
| CN204411357U (en) * | 2014-11-26 | 2015-06-24 | 鞍山奇典生态科技研究所有限公司 | Photocatalysis high activity air pollution process nano ceramics sheet |
| CN205323539U (en) * | 2015-10-27 | 2016-06-22 | 展宗城 | Eliminate catalytic module of formaldehyde under room temperature |
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