A kind of catalysis fibre material and preparation method for air cleaning
Technical field
The present invention relates to material for air purification fields, and in particular to for the catalysis fibre material of air cleaning and preparation side
Method.
Background technique
Air pollution source mainly has formaldehyde, benzene, ether-ether class, the volatile organic matters such as trichloro ethylene, acrylonitrile;Existing air
Purification medium material mainly has: efficient material of photochemical catalyst, active carbon, synthetic fibers, HEAP etc..Conventional purification style at present
For activated carbon adsorption, but since adsorbance is limited, it is difficult to eradicating pests.Degradation is to solve the preferable skill of air organic pollution
Art means.And it is existing main using catalytic degradation, due to by catalysis material and environmental restrictions, current catalytic degradation material efficiency
It is not high.Often take TiO2 as photocatalyst in the market, the generation of this kind of material catalytic degradation effect needs 12 hours or more, and
It need to just can guarantee that degradation is normally carried out under the conditions of ultraviolet light.Therefore, developing efficient catalytic degradation material is to realize that air is net
The critical bottleneck of change.
A kind of microporous medium catalysis oxidation, which is disclosed, application No. is the patent application of CN201610699772.8 prepares air
The method and material for air purification of scavenging material.Using microporous medium matrix, oxidant, catalyst and pH color developing agent as raw material, warp
S1. centrifugal dipping load, the load of S2. steam pressure, S3. be dry and the processing of S4. surface staining and etc. prepare material for air purification.
Preparation method supported catalyst oxidant on microporous medium wall surface and micro channel in a manner of centrifugal dipping, loading speed is fast,
Loading level is deep;It is loaded by steam pressure, under saturation vapour pressure and interior energy, loading level can be aggravated, while steam pressure load can
Optimize microporous medium structure, through hole improves, and is conducive to the promotion of its purifying property;After surface staining processing, what when purification generated
Acidic materials can make scavenging material surface discolouration, to obtain the experience sense of detergent power and effect;Air provided by the invention is net
Changing material has many advantages, such as that purification is thorough, quick, lasting.Its preparation process is complicated and cannot reuse, higher operating costs.
Application No. is 201710038229.8 patent applications to disclose the preparation method and sky of a kind of material for air purification
Gas scavenging material, embodiment mixing zinc acetate and gallium nitrate obtain compounding substances, and addition solvent is formed molten in compounding substances
Be gelled gluey presoma, and collosol and gel shape presoma is sintered, porous prilled gallic acid zinc precursor is formed, by porous
Granular gallic acid zinc precursor carries out nitrogen treatment, forms nitride porous gallium zinc oxide solid solution.Thus it solves traditional light to urge
The utilization efficiency of agent solar energy is not high, and smaller with the contact surface area of organic pollutant, the light degradation effect of organic pollutant
The problem of fruit difference, the nitride porous gallium zinc oxide solid solution synthesized by the method for collosol and gel, may be implemented to visible light
Response, improves the utilization efficiency of solar energy, while porous structure increases the contact surface area with organic pollutant, improves light
The utilization efficiency of catalyst increases the light degradation effect of organic pollutant.However its preparation process is complicated, it is organic by increasing
The contact surface area of pollutant and catalyst, although efficiency is promoted, but still not high.
Disclosing a kind of material for air purification application No. is 201210458120.7 patent application includes following composition portion
Point, 100-200 parts of active carbon, 20-50 parts of nano zircite, 30-50 parts of titanium dioxide, 10-15 parts of epoxy resin, high rare earth
20-50 parts.The content of the nano zircite is 25-30 parts.The partial size of the nano zircite is 20-50 nanometers.The present invention
Material for air purification be it is a kind of there are the multiple functions such as the moisture absorption, deodorization, sterilizing, especially by addition nano material,
There is the nano composite material for air cleaning of permanent photocatalytic sterilization effect under the action of natural light, is various places sky
The new material of gas purification and sterilization disinfection.It has the function of that absorption, photocatalysis poisonous and harmful substance are decomposed and sterilized, however its
Light-catalysed efficiency is still very low, can not meet demand.
Application No. is 201610263737.1 patent applications to disclose one kind except formaldehyde air cleaning new material, including
Basis material, surfactant, macromolecule organic amine class compound and rare-earth metal catalyst;Described matrix material is cation
Exchange fiber, the surfactant are fatty alcohol polyoxyethylene ether, and the macromolecule organic amine class compound is triethylene four
Amine, the rare-earth metal catalyst are the mixture of metal erbium and metallic ytterbium;The weight of each ingredient in the air cleaning new material
The ratio between part are as follows: 80~120 parts of basis material, 4~6 parts of surfactant, 20~30 parts of macromolecule organic amine class compound, rare earth
2~4 parts of metallic catalyst, wherein the weight ratio of metal erbium and metallic ytterbium is 1~3:1 in rare-earth metal catalyst.This hair
The air cleaning new material with function of removing formaldehyde of bright offer has excellent formaldehyde removing effect, and clearance rate is high, and right
The adsorption capacity of formaldehyde is big.Its absorption and removal only for formaldehyde.
Summary of the invention
For disadvantages described above, the first purpose of the invention is to provide a kind of catalysis fibre material for air cleaning,
The cellulosic material can adsorb formaldehyde, benzene, ether-ether class in air, the volatile harmfuls organic matter such as trichloro ethylene, acrylonitrile, and
Quickly catalytic organism is degraded, the reaction rate of catalysis harmful organic substance degradation is faster with respect to photocatalyst.
In order to solve the above technical problems, a kind of catalysis fibre material for air cleaning of the invention is made by the following method
It is standby to obtain: (1) to prepare titanium dioxide-cobalt oxide colloidal sol;(2) by titanium dioxide-cobalt oxide colloidal sol and cellulose gel it is compound after
Drawing-off, spinning obtain composite fibre;(3) composite fibre carries out air drying;(4) composite fibre immersion nickel source is electroplated,
It is formed using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode.
The preparation of the titanium dioxide-cobalt oxide colloidal sol can be molten using nano-titanium dioxide and nanometer cobalt oxide is mixed
Solution, then be prepared using conventional colloidal sol preparation method, the nano-titanium dioxide and nanometer cobalt oxide can use commercially available
Nano-titanium dioxide and nanometer cobalt oxide, can also synthesize, wherein sulfuric acid process, hydrochloric acid method, chlorine can be used in nano-titanium dioxide
The methods of change method and liquid phase method etc. are prepared.
Cobalt oxide (Co203) it is a kind of important transition metal oxide, it is the high oxide of cobalt, theoretical amount containing cobalt is
71.06%, oxygen content 28.94%, density 6.079g/cm3.It is a kind of black amorphous powder, and when heating can generate four
Co 3 O (Co304).Cobalt oxide is a kind of unstable, it is also not possible in the compound of free state.Usually signified cobalt oxide
Actually still contain a certain number of cobaltosic oxides.Co203Just stablize when being only in hydrated state, and this hyrate is 265
It can be dehydrated at DEG C and be transformed into intermidate oxide cobaltosic oxide (Co304)。
Titanium dioxide (TiO2) it is white solid or powdered amphoteric oxide, it is decomposed and is extracted with acid by rutile, or
It decomposes to obtain by titanium tetrachloride, generally divides Detitanium-ore-type (abbreviation A type) and rutile-type (abbreviation R type), can be employed as the present invention
Raw material.Titanium dioxide property is stablized, surface super hydrophilic.
The drawing-off is conventional drafting method, in spinning that fiber assembly (such as strip, rove) is regular
Ground leads length and attenuates, and is the process that combing is further loosened and gathered later.Bulk fiber Raw material processing at fibrous layer or strip, then
As rove, spun yarn, it is necessary to by the process that gradually attenuates, so the almost main machine or work of every kind of spinning in the prior art
Sequence has drawing-off effect.
It is uniformly mixed in order to be prepared, granular superfine, stable titanium dioxide-cobalt oxide colloidal sol, by a large amount of real
The following preferred technical solution of existing use, obtained titanium dioxide-cobalt oxide Stability of Sols are issued after examination and approval, and is uniformly mixed, particle
Ultra-fine: titanium dioxide-cobalt oxide colloidal sol method is prepared described in step (1) includes:
A. by TiO(OH)2After white precipitate washing removes the impurity such as sulfate radical, the sodium ion of solvable fluidity, addition 2~
4mol/L hydrochloric acid solution obtains transparent colourless titanium dioxide aqueous solution in the above-mentioned 40~60min of solution of 60 DEG C or more water-baths;
The titanium dioxide aqueous solution is taken, cationic surfactant, which is added, makes colloidal sol be converted to hydrophobicity condensate;It adds
Organic solvent, acutely oscillation is rinsed, and is transferred to colloidal particle in organic phase, up to transparent organosol after being separated from water;It will extraction
Organosol after taking separation, lower than organic solvent boiling point at a temperature of, after reflux removes absorption water, then be evaporated under reduced pressure removing
Organic solvent is heat-treated to get colourless titanium dioxide ultra-micro powder at 200~220 DEG C;
B. surfactant is added in acetic acid cobalt liquor and is uniformly mixed, add sodium hydroxide solution, it is small to stand 1~2
When, obtain cobalt oxide colloidal sol;
C. the titanium dioxide ultra-micro powder that a step is prepared is dissolved in the cobalt oxide colloidal sol that b step is prepared,
Up to titanium dioxide-cobalt oxide colloidal sol.
Titanium dioxide in titanium dioxide as described in step (1)-cobalt oxide colloidal sol as a preferred technical solution: oxidation
The mass ratio of cobalt is 8~15:4~10.
The mass ratio of step (2) cellulose and titanium dioxide is 50~100:2~5 as a preferred technical solution,.
Step (4) nickel source is NiSO as a preferred technical solution,4Or NiCl2.Nickel sulfate have anhydride nickel sulfate,
Nickel sulfate hexahydrate NiSO4·6H2O) He Qishui nickel sulfate NiSO4·7H2O) three kinds.Commercially available nickel sulfate is mostly six water objects, there is α-
Two kinds of variants of type and β-type, the former is the crystallization of blue four directions, and the latter is green monoclinic crystal, is used equally for nickel source of the invention.
The hydrate heating of nickel sulfate loses the crystallization water.It is soluble easily in water, it is slightly soluble in ethyl alcohol, methanol, aqueous solution is slightly soluble in acidity
Acid, ammonium hydroxide are toxic.It is mainly used for electroplating industry, is the main nickel salt of electronickelling and chemical nickel and coming for metallic nickel ions
Source can dissociate nickel ion and sulfate ion in the plating process.Anhydrous Nickel Chloride is yellow, but it is in nature very
It is rare, only it can be found that and more familiar to people is six green hydration dichlorides in the ore as water chlorine nickel stone
Nickel (NiCl2·6H2O).Nickel Chloride is green there are also a series of known hydrates, may be used as nickel of the invention
Source, generally, Nickel Chloride are that most important important nickel source, raw material are easy to get in chemical industry synthesis.
A second object of the present invention is to provide a kind of above-mentioned preparation method of the catalysis fibre material for air cleaning,
To solve second technical problem of the invention, a kind of preparation method of catalysis fibre material for air cleaning of the invention
Include the following steps: that (1) prepares titanium dioxide-cobalt oxide colloidal sol;(2) by titanium dioxide-cobalt oxide colloidal sol and cellulose gel
Compound first break draft, spinning obtain composite fibre;(3) composite fibre carries out air drying;(4) by composite fibre immerse nickel source into
Row plating, forms using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode.
Preparing titanium dioxide-cobalt oxide colloidal sol method described in step (1) as a preferred technical solution, includes:
A. by TiO(OH)2After white precipitate washing removes the impurity such as sulfate radical, the sodium ion of solvable fluidity, addition 2~
4mol/L hydrochloric acid solution obtains transparent colourless titanium dioxide aqueous solution in the above-mentioned 40~60min of solution of 60 DEG C or more water-baths;
The titanium dioxide aqueous solution is taken, cationic surfactant, which is added, makes colloidal sol be converted to hydrophobicity condensate;It adds
Organic solvent, acutely oscillation is rinsed, and is transferred to colloidal particle in organic phase, up to transparent organosol after being separated from water;It will extraction
Organosol after taking separation, lower than organic solvent boiling point at a temperature of, after reflux removes absorption water, then be evaporated under reduced pressure removing
Organic solvent is heat-treated to get colourless titanium dioxide ultra-micro powder at 200~220 DEG C;
B. surfactant is added in acetic acid cobalt liquor and is uniformly mixed, add sodium hydroxide solution, it is small to stand 1~2
When, obtain cobalt oxide colloidal sol;
C. the titanium dioxide ultra-micro powder that a step is prepared is dissolved in the cobalt oxide colloidal sol that b step is prepared,
Up to titanium dioxide-cobalt oxide colloidal sol.
Titanium dioxide in titanium dioxide as described in step (1)-cobalt oxide colloidal sol as a preferred technical solution: oxidation
The mass ratio of cobalt is 8~15:4~10.
The mass ratio of step (2) cellulose and titanium dioxide is 50~100:2~5 as a preferred technical solution,.
Step (4) nickel source is NiSO as a preferred technical solution,4Or NiCl2。
Using technical solution of the present invention, first prepare titanium dioxide-cobalt oxide colloidal sol, with cellulose gel it is compound after lead
It stretches, spinning obtains composite fibre;Composite fibre carries out air drying;Then composite fibre is immersed into nickel source (such as NiSO4Or
NiCl2) be electroplated, it is formed using cellulose fibre as skeleton, titanium dioxide-cobalt oxide is anode, nickel coating is urging for cathode
Chemical fibre dimension.Compared with prior art, significant advantage is that anode and cathode form micro cell system, generates micro-current, passes through fiber
The absorption of cellulose fiber is by organic matter fast degradation.The catalytic degradation material carries out catalysis drop to harmful organic substance under no light condition
Solution, and reaction rate is faster with respect to photocatalyst.
The titanium dioxide that the present invention is prepared-cobalt oxide colloidal sol transparency is good, and stability is high, good product dispersibility, thoroughly
The high organic solvent of lightness is recyclable to be recycled, no coupling product, and product purity is high.
Specific embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
(1) prepare titanium dioxide-cobalt oxide colloidal sol: a. is by 650gTiO(OH)2White precipitate washing removes solvable fluidity
After the impurity such as sulfate radical, sodium ion, the hydrochloric acid of 2mol/L is added, in the above-mentioned solution 40min of 60 DEG C or more water-baths, obtains transparent
Colourless titanium dioxide aqueous solution;The titanium dioxide aqueous solution being prepared is taken, two fourth of cationic surfactant sebacic acid is added
Ester 20g makes colloidal sol be converted to hydrophobicity condensate;Toluene organic solvent 1L is added, acutely oscillation is rinsed, and makes colloid grains
Son is transferred in organic phase, up to transparent organosol after being separated from water;By the organosol after extraction and separation, lower than organic molten
80 DEG C at a temperature of agent boiling point, after reflux removes absorption water, then it is evaporated under reduced pressure removing organic solvent, is heat-treated at 200 DEG C,
Up to colourless titanium dioxide ultra-micro powder;B. acetic acid cobalt content is added in surfactant sebum dibutyl phthalate 15g is 620g's
It is uniformly mixed in acetic acid cobalt liquor, adds the sodium hydroxide solution for the 1mol/L that 300ml concentration is, stood 1 hour, obtain oxygen
Change cobalt colloidal sol;C. it is molten that the titanium dioxide ultra-micro powder 450g for taking a step to be prepared is dissolved in the cobalt oxide that b step is prepared
To get titanium dioxide-cobalt oxide colloidal sol in glue.(2) by titanium dioxide-cobalt oxide colloidal sol and 5Kg cellulose gel it is compound after lead
It stretches, spinning obtains composite fibre.(3) composite fibre carries out air drying.(4) composite fibre is immersed into NiCl2Solution carries out electricity
Plating is formed using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode.
PM10 particle, content of formaldehyde in the air inside and outside newly-decorated office are measured, see Table 1 for details for measurement result.It will system
It is standby obtain using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode is packed into new
The air-conditioning air inlet in the house of finishing, its clean-up effect is measured after 2 hours, and see Table 1 for details.
Embodiment 2
(1) prepare titanium dioxide-cobalt oxide colloidal sol: a. is by 650gTiO(OH)2White precipitate washing removes solvable fluidity
After the impurity such as sulfate radical, sodium ion, the hydrochloric acid of 2.5mol/L is added, in the above-mentioned solution 45min of 60 DEG C or more water-baths, obtains transparent
Colourless titanium dioxide aqueous solution;The titanium dioxide aqueous solution being prepared is taken, cationic surfactant sebacic acid two is added
Butyl ester 20g makes colloidal sol be converted to hydrophobicity condensate;Toluene organic solvent 1L is added, acutely oscillation is rinsed, and makes colloid
Particle is transferred in organic phase, up to transparent organosol after being separated from water;By the organosol after extraction and separation, lower than organic
80 DEG C at a temperature of solvent boiling point, after reflux removes absorption water, then it is evaporated under reduced pressure removing organic solvent, carries out hot place at 210 DEG C
Reason is to get colourless titanium dioxide ultra-micro powder;B. it is by surfactant sebum dibutyl phthalate 15g addition acetic acid cobalt content
It is uniformly mixed in the acetic acid cobalt liquor of 620g, adds the sodium hydroxide solution for the 1mol/L that 300ml concentration is, it is small to stand 1.5
When, obtain cobalt oxide colloidal sol;C. the titanium dioxide ultra-micro powder 450g for taking a step to be prepared is dissolved in b step and is prepared
Cobalt oxide colloidal sol in get titanium dioxide-cobalt oxide colloidal sol.(2) by titanium dioxide-cobalt oxide colloidal sol and 5Kg cellulose gel
The compound first break draft of glue, spinning obtain composite fibre.(3) composite fibre carries out air drying.(4) composite fibre is immersed into NiSO4
Solution is electroplated, and is formed using cellulose fibre as skeleton, the catalysis that titanium dioxide-cobalt oxide is anode, nickel coating is cathode
Fiber.
PM10 particle, content of formaldehyde in the air inside and outside newly-decorated office are measured, see Table 1 for details for measurement result.It will system
It is standby obtain using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode is packed into new
The air-conditioning air inlet in the house of finishing, its clean-up effect is measured after 2 hours, and see Table 1 for details.
Embodiment 3
(1) prepare titanium dioxide-cobalt oxide colloidal sol: a. is by 650gTiO(OH)2White precipitate washing removes solvable fluidity
After the impurity such as sulfate radical, sodium ion, the hydrochloric acid of 2mol/L is added, in the above-mentioned solution 50min of 60 DEG C or more water-baths, obtains transparent
Colourless titanium dioxide aqueous solution;The titanium dioxide aqueous solution being prepared is taken, two fourth of cationic surfactant sebacic acid is added
Ester 20g makes colloidal sol be converted to hydrophobicity condensate;Toluene organic solvent 1L is added, acutely oscillation is rinsed, and makes colloid grains
Son is transferred in organic phase, up to transparent organosol after being separated from water;By the organosol after extraction and separation, lower than organic molten
80 DEG C at a temperature of agent boiling point, after reflux removes absorption water, then it is evaporated under reduced pressure removing organic solvent, is heat-treated at 220 DEG C,
Up to colourless titanium dioxide ultra-micro powder;B. acetic acid cobalt content is added in surfactant sebum dibutyl phthalate 15g is 620g's
It is uniformly mixed in acetic acid cobalt liquor, adds the sodium hydroxide solution for the 1mol/L that 300ml concentration is, stood 2 hours, obtain oxygen
Change cobalt colloidal sol;C. it is molten that the titanium dioxide ultra-micro powder 450g for taking a step to be prepared is dissolved in the cobalt oxide that b step is prepared
To get titanium dioxide-cobalt oxide colloidal sol in glue.(2) by titanium dioxide-cobalt oxide colloidal sol and 5Kg cellulose gel it is compound after lead
It stretches, spinning obtains composite fibre.(3) composite fibre carries out air drying.(4) composite fibre is immersed into NiCl2Solution carries out electricity
Plating is formed using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode.
PM10 particle, content of formaldehyde in the air inside and outside newly-decorated office are measured, see Table 1 for details for measurement result.It will system
It is standby obtain using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode is packed into new
The air-conditioning air inlet in the house of finishing, its clean-up effect is measured after 2 hours, and see Table 1 for details.
Embodiment 4
(1) prepare titanium dioxide-cobalt oxide colloidal sol: a. is by 750gTiO(OH)2White precipitate washing removes solvable fluidity
After the impurity such as sulfate radical, sodium ion, the hydrochloric acid of 3mol/L is added, in the above-mentioned solution 45min of 60 DEG C or more water-baths, obtains transparent
Colourless titanium dioxide aqueous solution;The titanium dioxide aqueous solution being prepared is taken, two fourth of cationic surfactant sebacic acid is added
Ester 20g makes colloidal sol be converted to hydrophobicity condensate;Toluene organic solvent 1.5L is added, acutely oscillation is rinsed, and makes colloid
Particle is transferred in organic phase, up to transparent organosol after being separated from water;By the organosol after extraction and separation, lower than organic
80 DEG C at a temperature of solvent boiling point, after reflux removes absorption water, then it is evaporated under reduced pressure removing organic solvent, carries out hot place at 220 DEG C
Reason is to get colourless titanium dioxide ultra-micro powder;B. it is by surfactant sebum dibutyl phthalate 15g addition acetic acid cobalt content
It is uniformly mixed in the acetic acid cobalt liquor of 620g, adds the sodium hydroxide solution for the 1mol/L that 300ml concentration is, it is small to stand 1.5
When, obtain cobalt oxide colloidal sol;C. the titanium dioxide ultra-micro powder 600g for taking a step to be prepared is dissolved in b step and is prepared
Cobalt oxide colloidal sol in get titanium dioxide-cobalt oxide colloidal sol.(2) by titanium dioxide-cobalt oxide colloidal sol and 5Kg cellulose gel
The compound first break draft of glue, spinning obtain composite fibre.(3) composite fibre carries out air drying.(4) composite fibre is immersed into NiSO4
Solution is electroplated, and is formed using cellulose fibre as skeleton, the catalysis that titanium dioxide-cobalt oxide is anode, nickel coating is cathode
Fiber.
PM10 particle, content of formaldehyde in the air inside and outside newly-decorated office are measured, see Table 1 for details for measurement result.It will system
It is standby obtain using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode is packed into new
The air-conditioning air inlet in the house of finishing, its clean-up effect is measured after 2 hours, and see Table 1 for details.
Embodiment 5
(1) prepare titanium dioxide-cobalt oxide colloidal sol: a. is by 650gTiO(OH)2White precipitate washing removes solvable fluidity
After the impurity such as sulfate radical, sodium ion, the hydrochloric acid of 2mol/L is added, in the above-mentioned solution 60min of 60 DEG C or more water-baths, obtains transparent
Colourless titanium dioxide aqueous solution;The titanium dioxide aqueous solution being prepared is taken, two fourth of cationic surfactant sebacic acid is added
Ester 20g makes colloidal sol be converted to hydrophobicity condensate;Toluene organic solvent 1L is added, acutely oscillation is rinsed, and makes colloid grains
Son is transferred in organic phase, up to transparent organosol after being separated from water;By the organosol after extraction and separation, lower than organic molten
80 DEG C at a temperature of agent boiling point, after reflux removes absorption water, then it is evaporated under reduced pressure removing organic solvent, is heat-treated at 200 DEG C,
Up to colourless titanium dioxide ultra-micro powder;B. acetic acid cobalt content is added in surfactant sebum dibutyl phthalate 15g is 620g's
It is uniformly mixed in acetic acid cobalt liquor, adds the sodium hydroxide solution for the 1mol/L that 300ml concentration is, stood 1 hour, obtain oxygen
Change cobalt colloidal sol;C. it is molten that the titanium dioxide ultra-micro powder 450g for taking a step to be prepared is dissolved in the cobalt oxide that b step is prepared
To get titanium dioxide-cobalt oxide colloidal sol in glue.(2) by titanium dioxide-cobalt oxide colloidal sol and 5Kg cellulose gel it is compound after lead
It stretches, spinning obtains composite fibre.(3) composite fibre carries out air drying.(4) composite fibre is immersed into NiCl2Solution carries out electricity
Plating is formed using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode.
PM10 particle, content of formaldehyde in the air inside and outside newly-decorated office are measured, see Table 1 for details for measurement result.It will system
It is standby obtain using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode is packed into new
The air-conditioning air inlet in the house of finishing, its clean-up effect is measured after 2 hours, and see Table 1 for details.
Embodiment 6
(1) prepare titanium dioxide-cobalt oxide colloidal sol: a. is by 940gTiO(OH)2White precipitate washing removes solvable fluidity
After the impurity such as sulfate radical, sodium ion, the hydrochloric acid of 2mol/L is added, in the above-mentioned solution 40min of 60 DEG C or more water-baths, obtains transparent
Colourless titanium dioxide aqueous solution;The titanium dioxide aqueous solution being prepared is taken, two fourth of cationic surfactant sebacic acid is added
Ester 20g makes colloidal sol be converted to hydrophobicity condensate;Toluene organic solvent 1.5L is added, acutely oscillation is rinsed, and makes colloid
Particle is transferred in organic phase, up to transparent organosol after being separated from water;By the organosol after extraction and separation, lower than organic
80 DEG C at a temperature of solvent boiling point, after reflux removes absorption water, then it is evaporated under reduced pressure removing organic solvent, carries out hot place at 210 DEG C
Reason is to get colourless titanium dioxide ultra-micro powder;B. it is by surfactant sebum dibutyl phthalate 15g addition acetic acid cobalt content
It is uniformly mixed in the acetic acid cobalt liquor of 620g, adds the sodium hydroxide solution for the 1mol/L that 300ml concentration is, stand 2 hours,
Obtain cobalt oxide colloidal sol;C. the titanium dioxide ultra-micro powder 750g for taking a step to be prepared is dissolved in the oxygen that b step is prepared
Change in cobalt colloidal sol to get titanium dioxide-cobalt oxide colloidal sol.(2) titanium dioxide-cobalt oxide colloidal sol is answered with 5Kg cellulose gel
First break draft is closed, spinning obtains composite fibre.(3) composite fibre carries out air drying.(4) composite fibre is immersed into NiSO4Solution
It is electroplated, is formed using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode.
PM10 particle, content of formaldehyde in the air inside and outside newly-decorated office are measured, see Table 1 for details for measurement result.It will system
It is standby obtain using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode is packed into new
The air-conditioning air inlet in the house of finishing, its clean-up effect is measured after 2 hours, and see Table 1 for details.
Comparative example 1
(1) prepare titanium dioxide-cobalt oxide colloidal sol: a. is by 100gTiO(OH)2White precipitate washing removes solvable fluidity
After the impurity such as sulfate radical, sodium ion, the hydrochloric acid of 2mol/L is added, in the above-mentioned solution 40min of 60 DEG C or more water-baths, obtains transparent
Colourless titanium dioxide aqueous solution;The titanium dioxide aqueous solution being prepared is taken, two fourth of cationic surfactant sebacic acid is added
Ester 20g makes colloidal sol be converted to hydrophobicity condensate;Toluene organic solvent 1L is added, acutely oscillation is rinsed, and makes colloid grains
Son is transferred in organic phase, up to transparent organosol after being separated from water;By the organosol after extraction and separation, lower than organic molten
80 DEG C at a temperature of agent boiling point, after reflux removes absorption water, then it is evaporated under reduced pressure removing organic solvent, is heat-treated at 210 DEG C,
Up to colourless titanium dioxide ultra-micro powder;B. acetic acid cobalt content is added in surfactant sebum dibutyl phthalate 15g is 620g's
It is uniformly mixed in acetic acid cobalt liquor, adds the sodium hydroxide solution for the 1mol/L that 300ml concentration is, stood 2 hours, obtain oxygen
Change cobalt colloidal sol;C. it is molten that the titanium dioxide ultra-micro powder 50g for taking a step to be prepared is dissolved in the cobalt oxide that b step is prepared
To get titanium dioxide-cobalt oxide colloidal sol in glue.(2) by titanium dioxide-cobalt oxide colloidal sol and 5Kg cellulose gel it is compound after lead
It stretches, spinning obtains composite fibre.(3) composite fibre carries out air drying.(4) composite fibre is immersed into NiSO4Solution carries out electricity
Plating is formed using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode.
PM10 particle, content of formaldehyde in the air inside and outside newly-decorated office are measured, see Table 1 for details for measurement result.It will system
It is standby obtain using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode is packed into new
The air-conditioning air inlet in the house of finishing, its clean-up effect is measured after 2 hours, and see Table 1 for details.
Comparative example 2
(1) prepare titanium dioxide-cobalt oxide colloidal sol: a. is by 940gTiO(OH)2White precipitate washing removes solvable fluidity
After the impurity such as sulfate radical, sodium ion, the hydrochloric acid of 2mol/L is added, in the above-mentioned solution 40min of 60 DEG C or more water-baths, obtains transparent
Colourless titanium dioxide aqueous solution;The titanium dioxide aqueous solution being prepared is taken, two fourth of cationic surfactant sebacic acid is added
Ester 20g makes colloidal sol be converted to hydrophobicity condensate;Toluene organic solvent 1.5L is added, acutely oscillation is rinsed, and makes colloid
Particle is transferred in organic phase, up to transparent organosol after being separated from water;By the organosol after extraction and separation, lower than organic
80 DEG C at a temperature of solvent boiling point, after reflux removes absorption water, then it is evaporated under reduced pressure removing organic solvent, carries out hot place at 210 DEG C
Reason is to get colourless titanium dioxide ultra-micro powder;B. acetic acid cobalt content is added in surfactant sebum dibutyl phthalate 15g is 40g
Acetic acid cobalt liquor in be uniformly mixed, add the sodium hydroxide solution for the 1mol/L that 300ml concentration is, stand 2 hours, obtain
Cobalt oxide colloidal sol;C. the titanium dioxide ultra-micro powder 750g for taking a step to be prepared is dissolved in the cobalt oxide that b step is prepared
To get titanium dioxide-cobalt oxide colloidal sol in colloidal sol.(2) by titanium dioxide-cobalt oxide colloidal sol and 5Kg cellulose gel it is compound after
Drawing-off, spinning obtain composite fibre.(3) composite fibre carries out air drying.(4) composite fibre is immersed into NiSO4Solution carries out
Plating is formed using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode.
PM10 particle, content of formaldehyde in the air inside and outside newly-decorated office are measured, see Table 1 for details for measurement result.It will system
It is standby obtain using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide-cobalt oxide is anode, nickel coating is cathode is packed into new
The air-conditioning air inlet in the house of finishing, its clean-up effect is measured after 2 hours, and see Table 1 for details.
Comparative example 3
(1) it prepares cobalt oxide colloidal sol: surfactant being added in the acetic acid cobalt liquor that acetic acid cobalt content is 620g and is mixed
Uniformly, sodium hydroxide solution is added, 2 hours is stood, obtains cobalt oxide colloidal sol.(2) by cobalt oxide colloidal sol and 5Kg cellulose gel
The compound first break draft of glue, spinning obtain composite fibre.(3) composite fibre carries out air drying.(4) composite fibre is immersed into NiSO4
Solution is electroplated, and is formed using cellulose fibre as skeleton, the catalysis fibre that cobalt oxide is anode, nickel coating is cathode.
PM10 particle, content of formaldehyde in the air inside and outside newly-decorated office are measured, see Table 1 for details for measurement result.It will system
It is standby obtain using cellulose fibre as skeleton, the catalysis fibre that cobalt oxide is anode, nickel coating is cathode is packed into newly-decorated room
The air-conditioning air inlet of son, its clean-up effect is measured after 2 hours, and see Table 1 for details.
Comparative example 4
(1) prepare TiO 2 sol: a. is by 940gTiO(OH)2The sulfate radical of the solvable fluidity of white precipitate washing removing,
After the impurity such as sodium ion, the hydrochloric acid of 2mol/L is added, in the above-mentioned solution 40min of 60 DEG C or more water-baths, obtains transparent colourless two
Titanium oxide aqueous solution;The titanium dioxide aqueous solution being prepared is taken, cationic surfactant sebum dibutyl phthalate 20g is added
Colloidal sol is set to be converted to hydrophobicity condensate;Toluene organic solvent 1.5L is added, acutely oscillation is rinsed, and turns colloidal particle
Enter in organic phase, up to transparent organosol after being separated from water;By the organosol after extraction and separation, boiled lower than organic solvent
80 DEG C at a temperature of point, after reflux removes absorption water, then be evaporated under reduced pressure removing organic solvent, be heat-treated at 210 DEG C to get
Colourless titanium dioxide ultra-micro powder;B., surfactant sebum dibutyl phthalate 15g is added to the hydroxide of the 1mol/L of 300ml
Sodium solution stands 2 hours;C. the titanium dioxide ultra-micro powder 750g for taking a step to be prepared is dissolved in the solution of b step,
Up to TiO 2 sol.(2) by TiO 2 sol and the compound first break draft of 5Kg cellulose gel, spinning obtains compound fibre
Dimension.(3) composite fibre carries out air drying.(4) composite fibre is immersed into NiSO4Solution is electroplated, and is formed with cellulose fiber
Dimension is skeleton, the catalysis fibre that titanium dioxide is anode, nickel coating is cathode.
PM10 particle, content of formaldehyde in the air inside and outside newly-decorated office are measured, see Table 1 for details for measurement result.It will system
It is standby obtain using cellulose fibre as skeleton, the catalysis fibre that titanium dioxide is anode, nickel coating is cathode is packed into newly-decorated
The air-conditioning air inlet in house, its clean-up effect is measured after 2 hours, and see Table 1 for details.
1 embodiment of table and comparative example indoor air purification effect