CN108043195A - A kind of nanogold gas purification liquid and preparation method and application - Google Patents
A kind of nanogold gas purification liquid and preparation method and application Download PDFInfo
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- CN108043195A CN108043195A CN201711116360.8A CN201711116360A CN108043195A CN 108043195 A CN108043195 A CN 108043195A CN 201711116360 A CN201711116360 A CN 201711116360A CN 108043195 A CN108043195 A CN 108043195A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
Abstract
The present invention relates to a kind of nanogold gas purification solution, which is made of raw material gold salt, surfactant, reducing agent and water.The nanogold gas purification solution can effectively remove the harmful substances such as formaldehyde, benzene, TVOC, can work under conditions of having illumination/no light, noiseless without expending electric energy, thermal energy or luminous energy, can be acted as long as the place for having oxygen；Long action time simultaneously, and new harmful chemical will not be generated, it is safe and environment-friendly and efficient.The present invention also provides the preparation methods and purposes of the nano-Au solution, have a good application prospect.
Description
Technical field
The invention belongs to noble metal nanometer material field, more particularly to a kind of nanogold gas purification liquid and preparation method thereof
With application.
Background technology
Modern humans have the activity in space indoors of 80% time, and therefore, the cleanliness factor of room air is to health
With very crucial influence.
Since the progress of industry pursues beautiful and comfortable demand with people, substantial amounts of artificial synthesized article enters house room
It is interior, for example, artificial cabinet, artificial board, curtain, sofa, carpet, mattress, plastics, rubber etc., these artificial processing systems
Product are for antiseptic insect-repelling, usually can the volatilizations such as release formaldehyde, benzene, ammonia, VOCs usually using substantial amounts of adhesive and preservative
Property pernicious gas, especially formaldehyde, the volatilization phase up to 3~15 years, can cause human body Ocular irritation, breathing problem, skin
Allergy, leukaemia, feminine menstrual are disorderly or induce various cancers, make indoor living space, motor space no longer safe, therefore,
A kind of safe and reliable and permanently effective indoor air purification product is developed, is the active demand of modern society.
Chinese patent CN102416482A discloses a kind of nano-Au solution and utilizes nano-Au solution detection Co2+'s
Method, wherein the nano-Au solution is using gold salt as gold nanoparticle source, using quaternary ammonium salt as surfactant, hydroboration
Sodium or ascorbic acid are reducing agent；A certain amount of gold salt solution is taken, surfactant is added in, reducing agent is added in after stirring, is made
Nanogold mixed solution；The compound soluble easily in water containing sulfydryl and carboxyl is keyed in the nanogold mixed solution,
Obtain the nano-Au solution of ion cluster modification.But in putting into practice, there are many for the obtained nanogold mixed solution of the document
Problem, first, due to the interaction of nano Au particle, it may occur that nanoparticle unity, the increased risk of particle；The
Two, the concentration of nano Au particle is relatively low, and effect is undesirable.It is existing the study found that surfactant will directly affect nano-scale gold particle
The formation of son and its grain size.
In recent years, nanometer technology has been widely used in each field, is led from people's livelihood consumer industry or even tip high-tech
There is application in domain, has been acknowledged as one of 21st century most important industry.Therefore, how more effectively, safely to handle
The pernicious gases such as formaldehyde, benzene, ammonia, VOCs are a technical problem to be solved urgently.
The content of the invention
The present invention provides a kind of easy to use in view of the above-mentioned problems, the shortcomings that overcoming existing product, can effectively remove first
The harmful substances such as aldehyde, benzene, TVOC, have light it is unglazed in the presence of effectively, and the nanometer of secondary pollution will not be caused to environment
Golden gas purification liquid product and its preparation method and application.
The technical solution adopted by the present invention to solve the technical problems is as follows.
One aspect of the present invention is related to a kind of nanogold gas purification solution, wherein, the nanogold gas purification solution
Raw material includes gold salt, surfactant, reducing agent and water, and the parts by weight of each raw material are：1-5 parts of gold salt, surfactant 1-5
Part, 25-30 parts of reducing agent, 70-80 parts of water.
Preferably, the weight ratio of each raw material is：2-4 parts of gold salt, 2-5 parts of surfactant, 26-28 parts of reducing agent, water 70-
80 parts.
It is furthermore preferred that the weight ratio of each raw material is：3 parts of gold salt, 4.2 parts of surfactant, 27 parts of reducing agent, 75 parts of water.
In nanogold gas purification solution of the present invention, wherein, the gold salt is gold chloride (HAuCl4), three water
Close gold chloride (HAuCl43H2O), four hydration gold chlorides (HAuCl44H2O), two hydration potassium chloroaurate (KAuCl4
2H2O), one kind or more in two hydration sodium chloraurates (NaAuCl42H2O), chlorauride (AuCl3), aurous chloride (AuCl)
Kind, preferably gold chloride (HAuCl4), three hydration gold chlorides (HAuCl43H2O), four hydration gold chlorides (HAuCl44H2O),
One or more in two hydration potassium chloroaurates (KAuCl42H2O), two hydration sodium chloraurates (NaAuCl42H2O), it is more excellent
Select one or both of three hydration gold chlorides (HAuCl43H2O), two hydration sodium chloraurates (NaAuCl42H2O).
In nanogold gas purification solution of the present invention, wherein, the surfactant is docosyl three
Methyl bromide ammonium, dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, cetyl trimethylammonium bromide
In one or more.
Preferably, the surfactant is behenyl ammonium bromide and dodecyl dimethyl Benzylmagnesium chloride
The mixture of ammonium, the weight ratio of the two is 3:1-1:1, it is preferably 2:1.
Above-mentioned surfactant is favourable to the preparation of nanogold gas purification solution.Without being bound by any theory,
When surfactant selects the mixture of behenyl ammonium bromide and dodecyl benzyl dimethyl ammonium chloride, obtain
The grain size of the nano Au particle arrived is more uniform, and PARA FORMALDEHYDE PRILLS(91,95), benzene, the removal effect of TVOC (organic gas substance) significantly improve.
In nanogold gas purification solution of the present invention, wherein, the reducing agent is sodium borohydride, hydroboration
One or more in potassium, ascorbic acid are preferably sodium borohydride.
Another aspect of the present invention is related to the preparation method of nanogold gas purification solution of the present invention, and feature exists
In including the following steps：
1) gold salt, surfactant and the reducing agent of formula ratio are taken, is configured to solution form with water respectively, it is spare；
2) surfactant solution is added in into the gold salt solution, is placed on mixer and stirs 30-60 minutes, preferably
40-50 minutes；
3) into the solution that step 2 obtains with 1-3 drops per second, preferably it is per second 2 drop speed reducing agent solution is slowly added dropwise,
Be added dropwise be placed on mixer stir 18-30 it is small when, when preferably 22-26 is small；
4) stop stirring and be placed on shady place, after solution to be mixed is layered with deionized water, extract the mixed solution on upper strata,
Obtain the nanogold gas purification solution.
It is net in the nanogold gas that nanogold gas purification solution of the present invention or preparation method of the present invention obtain
Change in solution, wherein, the average grain diameter of the nanogold particle in the nano-Au solution is less than 10nm.
Another aspect of the present invention is related to nanogold gas purification solution of the present invention for removing formaldehyde, benzene, TVOC
In application.
Compared with prior art the beneficial effects of the invention are as follows：
(1) by adding shell powder carrier in inventive formulation, the stability of nano-Au solution greatly improves；
(2) selection of complexed surfactant of the present invention makes the nanogold grain size being prepared more homogeneous, to nuisance
The removal effect of matter greatly improves；
(3) production method of nano-Au solution of the present invention is simple and practicable, can be with large-scale mass production, product mechanism
In be not required curable type mechanical equipment, also without consumptive material replace demand；
(4) nano-Au solution of the invention is when carrying out Air purification, without expending electric energy, thermal energy or luminous energy, nothing
Noise can act as long as the place for having oxygen；
(5) present invention can effectively remove the harmful substances such as formaldehyde, benzene, TVOC (organic gas substance), long action time,
24 it is small when annual uninterrupted effect in 365 days, can continue holding effect as long as not destroyed as long as coating；
(6) product of the invention will not generate new harmful chemical in resolving harmful gas, and when use will not make
The harm of adult body or the damage of implements, save artificial, and construction method is simple, and when operation will not cause harm and the environment of human body
Pollution.
Specific embodiment
With reference to embodiment and application, the present invention is further illustrated, and the percentage in embodiment is weight hundred
Divide ratio, but the present invention is not limited thereto.
First, embodiment is prepared
Embodiment 1：
It mixes 55mL and is hydrated the aqueous solution of gold chloride (HAuCl43H2O) and 10ml docosane containing 0.2g containing 0.2g tri-
The aqueous solution of base trimethylammonium bromide is placed in constant speed on blender and stirred 40 minutes, then contained 5mL with the speed of per second 2 drops
The aqueous solution of 2.6 grams of sodium borohydride (NaBH4) slowly instills, be placed on blender stirring 22 it is small when, after the completion of stirring, be placed in
Shady place, solution to be mixed is with after deionized water layering, extracting the mixed solution on upper strata to get molten to nanogold gas purification
Liquid.
Embodiment 2：
The aqueous solution and 10ml for mixing 55mL hydration sodium chloraurates containing 0.3g bis- (NaAuCl42H2O) contain 0.28g 20
The aqueous solution of dialkyl group trimethylammonium bromide and 0.14g dodecyl benzyl dimethyl ammonium chlorides is placed in constant speed on blender and stirs
It mixes 45 minutes, then aqueous solutions of the 10mL containing 2.7 grams of sodium borohydride (NaBH4) is slowly instilled with the speed of per second 2 drops, is put
It is In Shade after the completion of stirring when stirring 24 is small on blender, after solution to be mixed is layered with deionized water, in extraction
The mixed solution of layer is to get to nanogold gas purification solution.
Embodiment 3：
It mixes 55mL and is hydrated the aqueous solution of sodium chloraurate (NaAuCl42H2O) and 15ml dodecanes containing 0.4g containing 0.4g bis-
The aqueous solution of base dimethyl benzyl ammonium chloride is placed in constant speed on blender and stirs 30 minutes, then will with the speed of per second 2 drops
Aqueous solutions of the 10mL containing 2.8 grams of potassium borohydride (KBH4) slowly instills, and when being placed in that stirring 26 is small on blender, stirring is completed
Afterwards, it is In Shade, after the layering of solution to be mixed and deionized water, the mixed solution on upper strata is extracted to get to the nanometer
Golden gas purification solution.
Embodiment 4：
It mixes 55mL and is hydrated the aqueous solution of gold chloride (HAuCl43H2O) and 10ml cetyls containing 0.15g containing 0.1g tri-
The aqueous solution of trimethylammonium bromide is placed in constant speed on blender and stirs 50 minutes, 6mL then is contained 2.5 with the speed of per second 2 drops
Gram the aqueous solution of potassium borohydride (KBH4) slowly instill, when being placed in that stirring 23 is small on blender, after the completion of stirring, be placed in cool place
Place, solution to be mixed is with after deionized water layering, extracting the mixed solution on upper strata to get molten to the nanogold gas purification
Liquid.
Embodiment 5：
It mixes 55mL and is hydrated the aqueous solution of gold chloride (HAuCl43H2O) and 15ml cetyls containing 0.3g containing 0.2g tri-
The aqueous solution of trimethylammonium bromide is placed in constant speed on blender and stirs 45 minutes, 10mL then is contained 3 with the speed of per second 2 drops
Gram the aqueous solution of ascorbic acid slowly instill, it is In Shade after the completion of stirring when being placed in that stirring 25 is small on blender, treat
After the layering of mixed solution and deionized water, the mixed solution on upper strata is extracted to get to the nanogold gas purification solution.
2nd, effect detection
Nanogold gas purification solution obtained is sent to microbiological analysis inspection center of Guangdong Province to its performance and effect
It is detected.
(1) formaldehyde removal effect is tested
Sample under a variety of experimental conditions is carried out to the removal rate detection of formaldehyde, foundation is detected and method presses QB/T2761-
2006 carry out.
Table 1 is sample in 1.5m3(Guangdong Province is micro- for the removal rate testing result of unlatching daylight light progress formaldehyde in experimental cabin
Bioanalysis inspection center report number：2017FM00918R01).
The removal rate testing result that daylight light carries out formaldehyde is opened in 1 experimental cabin of table
The results show that the nanogold gas purification solution that the embodiment of the present invention is prepared has in daylight presence
There is preferable formaldehyde removal to act on, especially the most apparent with embodiment 2 among these, the removal rate of PARA FORMALDEHYDE PRILLS(91,95) connect at 72 hours
Nearly 99%, it is more preferred.
Table 2 is being protected from light the 1.5m of (dull thread irradiates, no lamp and artificial light sources) for sample3First is carried out in experimental cabin
Removal rate testing result (microbiological analysis inspection center of the Guangdong Province report number of aldehyde：2017FM02077R01),
The removal rate testing result of formaldehyde is carried out in the dark in 2 experimental cabin of table
The results show that the nanogold gas purification solution that the embodiment of the present invention is prepared equally has under the conditions of being protected from light
There is preferable formaldehyde removal to act on, especially the most apparent with embodiment 2 among these, the removal rate of PARA FORMALDEHYDE PRILLS(91,95) connect at 72 hours
Nearly 99%, it is more preferred.
(2) benzene removal effect is tested
By sample in 1.5m3The removal rate detection of benzene is carried out in experimental cabin, foundation is detected and method presses QB/T2761-2006
Carry out (microbiological analysis inspection center of Guangdong Province report number：2017FM00919R01).Testing result is as shown in table 3.
Benzene removal rate testing result in 3 experimental cabin of table
Make the results show that the nanogold gas purification solution that the embodiment of the present invention is prepared is respectively provided with preferable benzene removal
With, it is especially the most apparent with embodiment 2 among these, 77.3% is reached to the removal rate of benzene at 24 hours, is more preferably
's.
(3) TVOC removal effects are tested
By sample in 1.5m3The detection of TVOC removal rates is carried out in experimental cabin, foundation is detected and method presses QB/T 2761-
2006 carry out (microbiological analysis inspection center of Guangdong Province report number：2017FM00921R01).Testing result is as shown in table 4,
TVOC removal rate testing results in 4 experimental cabin of table
The results show that the nanogold gas purification solution that the embodiment of the present invention is prepared is respectively provided with preferable TVOC removals
Effect, it is especially the most apparent with embodiment 2 among these, 84.9% is reached to the removal rate of TVOC at 24 hours, is more
Preferably.
The present invention is described by specific embodiment.Those skilled in the art can use for reference the interior of the present invention
It accommodates when links such as feed change, process conditions to realize corresponding other purposes, correlation changes all without departing from the present invention
Content, all similar substitutions and modifications are it will become apparent to those skilled in the art that be considered as being included in
Within the scope of the present invention.
Claims (9)
1. a kind of nanogold gas purification solution, which is characterized in that the raw material of the nanogold gas purification solution include gold salt,
Surfactant, reducing agent and water, the parts by weight of each raw material are：1-5 parts of gold salt, 1-5 parts of surfactant, reducing agent 25-30
Part, 70-80 parts of water.
2. nanogold gas purification solution according to claim 1, which is characterized in that the weight ratio of each raw material is：Gold salt
2-4 parts, 2-4 parts of surfactant, 26-28 parts of reducing agent, 70-80 parts of water.
3. nanogold gas purification solution according to claim 1 or 2, which is characterized in that the gold salt is gold chloride
(HAuCl4), three hydration gold chlorides (HAuCl43H2O), four hydration gold chlorides (HAuCl44H2O), two hydration potassium chloroaurates
(KAuCl42H2O), in two hydration sodium chloraurates (NaAuCl42H2O), chlorauride (AuCl3), aurous chloride (AuCl)
It is one or more.
4. nanogold gas purification solution according to claim 1 or 2, which is characterized in that the surfactant is two
Dodecyl trimethyl ammonium bromide, dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, cetyl three
One or more in methyl bromide ammonium.
5. nanogold gas purification solution according to claim 4, which is characterized in that the surfactant is 22
The mixture of alkyl trimethyl ammonium bromide and dodecyl benzyl dimethyl ammonium chloride, the weight ratio of the two is 3:1-1:1.
6. nanogold gas purification solution according to claim 1 or 2, which is characterized in that the reducing agent is hydroboration
One or more in sodium, potassium borohydride, ascorbic acid.
7. nanogold gas purification solution according to claim 1 or 2, which is characterized in that in the nano-Au solution
Nanogold particle average grain diameter be less than 10nm.
8. a kind of preparation method of nanogold gas purification solution described in claim 1, which is characterized in that including walking as follows
Suddenly：
1) gold salt, surfactant and the reducing agent of formula ratio are taken, is configured to solution form with water respectively, it is spare；
2) surfactant solution is added in into the gold salt solution, is placed on mixer and stirs 30-60 minutes；
3) reducing agent solution is slowly added dropwise with the speed of 1-3 drops per second into the solution that step 2 obtains, is added dropwise to be placed on and stir
Mix on machine stir 18-30 it is small when；
4) stop stirring and be placed on shady place, solution to be mixed with after deionized water layering, extract the mixed solution on upper strata to get
To the nanogold gas purification solution.
9. a kind of nanogold gas that nanogold gas purification solution described in claim 1 or claim 8 method are prepared
Body purified solution is used to remove the application in formaldehyde, benzene, TVOC.
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