CN110681260A - Air purifying agent and preparation method thereof - Google Patents
Air purifying agent and preparation method thereof Download PDFInfo
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- CN110681260A CN110681260A CN201911020481.1A CN201911020481A CN110681260A CN 110681260 A CN110681260 A CN 110681260A CN 201911020481 A CN201911020481 A CN 201911020481A CN 110681260 A CN110681260 A CN 110681260A
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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
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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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
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Abstract
The invention discloses an air purifying agent and a preparation method thereof, wherein the air purifying agent comprises the following components: tetrahydrotitanium oxide, hydrochloric acid, potassium salt, ferroferric oxide, water-soluble aluminum salt and hydrochloric acid, and the solvent is water. In the technical scheme of the invention, the iron-titanium hydroxide complex generated by the reaction of the tetrahydrotitanium oxide and the hydrochloric acid, the ferroferric oxide and the hydrochloric acid is used as the catalyst, and the sylvite is used for providing energy for the catalytic reaction, so that the indoor air purification effect is improved.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to an air purifying agent and a preparation method thereof.
Background
With the increasing concern of people on health, the environmental protection becomes the primary consideration in home decoration. A person spends more than about two-thirds of their life indoors, and the poor indoor air environment is the most direct harm to the health of the person. Harmful gases emitted by decorative materials and furniture used in decoration mainly comprise formaldehyde, benzene, toluene, xylene, total volatile organic compounds TVOC and the like, and when the pollutants exceed the standard, the pollutants can induce cancers, various skin diseases and the like to bring various injuries to people. Therefore, air pollution caused by interior decoration is a focus of attention.
At present, most air purifying agent products mainly utilize a photocatalyst to generate a photocatalytic reaction similar to photosynthesis under the irradiation of ultraviolet light so as to remove harmful gases such as formaldehyde, benzene and the like in indoor air. In the related art, two conditions are required for the photocatalytic reaction: firstly, the energy required by the photocatalytic reaction is provided through ultraviolet irradiation; secondly, the particle size of the titanium dioxide which generates the photocatalytic reaction must be less than 5 nanometers. If either condition is absent, the photocatalyst can be significantly degraded. However, in practical situations, even if the weather is bright and sunny every day, the ultraviolet intensity in the indoor environment is much weaker than that in the outdoor environment, and the indoor ultraviolet intensity cannot provide enough energy for the photocatalyst catalysis. Therefore, it is urgent to find a new air purifying agent which does not use ultraviolet rays to supply energy for catalytic reaction.
Disclosure of Invention
The invention mainly aims to provide an air purifying agent and a preparation method thereof, so as to improve the quality of indoor air.
In order to achieve the above object, the present invention provides an air purifying agent, comprising: tetrahydrotitanium oxide hydrochloride, potassium salt, ferroferric oxide, water-soluble aluminum salt and hydrochloric acid, wherein the solvent is water;
the quantity concentration of each component substance is as follows:
0.002-0.02 mol/L of tetrahydroxytitanium oxide and hydrochloric acid;
0.1-0.5 mol/L of potassium salt;
ferroferric oxide is 0.05-0.3 mol/L;
0.4-2.7 mol/L of hydrochloric acid;
0.1 to 0.5mol/L of a water-soluble aluminum salt.
Further, the tetrahydroxytitanium oxide hydrochloride is a mixture of tetrahydroxytitanium oxide hydrochloride and tetrahydroxytitanium oxide dihydrochloride.
Further, the ferroferric oxide is paramagnetic ferroferric oxide.
Further, the grain size of the paramagnetic ferroferric oxide is less than or equal to 30 nm.
Further, the particle size of the tetrahydrotitanium oxide and hydrochloric acid is less than or equal to 5 um.
Furthermore, the material quantity ratio of the ferroferric oxide to the hydrochloric acid is 1 (8-9).
The invention also provides a preparation method of the air purifying agent, which comprises the following steps:
the ratio of the amount of the substances is (0.05-0.3): (0.002-0.02) respectively weighing ferroferric oxide and tetrahydrotitanium oxide and hydrochloric acid, and mixing to obtain a mixture;
adding hydrochloric acid into the mixture, wherein the mass ratio of the ferroferric oxide to the hydrochloric acid is as follows: 1, (8-9), uniformly mixing to obtain a mixed solution;
sequentially adding the potassium salt and the water-soluble aluminum salt to the mixed solution, wherein the ratio of the ferroferric oxide to the potassium salt to the water-soluble aluminum salt is as follows: (0.05-0.3): (0.1-0.5): (0.1-0.5) to obtain the air purifying agent.
Further, the specific preparation steps of the tetrahydrotitanium oxide and hydrochloric acid are as follows:
mixing water with the same volume as the isopropanol to obtain a solvent;
titanium tetrachloride is then added to the solvent in the following proportions: 100mL (60 g-85 g);
heating at 50-55 ℃ for 30-60 minutes to obtain a mixed solution;
and drying the mixed solution to obtain the tetrahydrotitanium oxide and hydrochloric acid.
Further, the drying of the mixed solution comprises the following specific steps:
and putting the mixed solution into a rotary evaporator, and drying at 65-75 ℃.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an air purifying agent and a preparation method thereof, wherein the air purifying agent comprises the following components: titanium tetrahydroxide hydrochloric acid, potassium salt, ferroferric oxide, water-soluble aluminum salt and hydrochloric acid, and the solvent is water. According to the technical scheme, a ferrotitanium hydroxide complex is generated through a complex reaction between titanium hydroxide and hydrochloric acid, ferroferric oxide and hydrochloric acid, and oxygen and water in air are catalyzed to generate hydroxyl radicals under the action of energy generated by decay of the complex in potassium salt. The hydroxyl radical has strong oxidizing property, can oxidize harmful gases in air such as formaldehyde, benzene, toluene, xylene and TVOC, generates carbon dioxide and water, and does not produce secondary pollution. Therefore, the air purifying agent disclosed by the application can realize catalytic reaction under the condition of no ultraviolet irradiation, and can effectively remove residual harmful substances in air after indoor decoration.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely in the following description of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an air purifying agent and a preparation method thereof, which are suitable for treating indoor air pollution after decoration.
The invention provides an air purifying agent, which comprises the following components: tetrahydrotitanium oxide, hydrochloric acid, potassium salt, ferroferric oxide, water-soluble aluminum salt and hydrochloric acid, wherein the solvent is water;
the quantity concentration of each component substance is as follows:
0.002-0.02 mol/L of tetrahydroxytitanium oxide and hydrochloric acid;
0.1-0.5 mol/L of potassium salt;
ferroferric oxide is 0.05-0.3 mol/L;
0.4-2.7 mol/L of hydrochloric acid;
0.1 to 0.5mol/L of a water-soluble aluminum salt.
In the embodiment, the working principle of the air purifying agent is as follows: the tetrahydroxytitanium oxide-hydrochloric acid, the ferroferric oxide and the hydrochloric acid are used as catalytic sites, energy is provided for catalytic reaction by utilizing internal decay of a natural radioactive nuclide potassium-40 (the atomic nucleus of the potassium-40 is unstable and can spontaneously release beta rays through beta decay) contained in potassium salt, oxygen and water in air are catalyzed to generate oxyhydrogen free radicals, and then harmful gases such as formaldehyde, benzene, toluene, xylene and TVOC in the air are catalyzed to generate harmless carbon dioxide and water by utilizing the extremely strong oxidizability of the oxyhydrogen free radicals, so that the harmful gases in the air are degraded and removed. Specifically, complex chemical reactions (such as complexation, isomerization, four basic chemical reactions and the like) can occur among the titanium hydroxide hydrochloric acid, the ferroferric oxide and the hydrochloric acid to generate a ferrotitanium hydroxide complex and an isomer thereof, and the complex and the isomer thereof provide energy for catalytic reactions of the ferrotitanium hydroxide complex by utilizing internal decay of potassium-40 to catalyze oxygen and water in the air to generate hydroxide radicals. The air purifying agent claimed in the sample application can realize catalytic reaction under the condition of no ultraviolet irradiation, and can effectively remove harmful substances remained in the air after indoor decoration.
Further, when an air purifying agent containing an aluminum salt is sprayed on the surface of a pollution source such as furniture, alumina is produced as water is evaporated, which can form a breathable film on the surface of the pollution source. The film can resist 5000 times of scrubbing, and can fix the effective components of the invention on the surface of a pollution source to continuously perform chemical reaction for catalyzing harmful gases. Further realizes the lasting decontamination performance of the air purifying agent.
Further, the tetrahydroxytitanium oxide hydrochloride is a mixture of tetrahydroxytitanium oxide hydrochloride and tetrahydroxytitanium oxide dihydrochloride. The ferroferric oxide is paramagnetic ferroferric oxide. The grain diameter of the paramagnetic ferroferric oxide is less than or equal to 30 nm. The particle size of the tetrahydrotitanium oxide and hydrochloric acid is less than or equal to 5 um. The material quantity ratio of the ferroferric oxide to the hydrochloric acid is 1 (8-9).
In this embodiment, in order to enable the catalyst in the air purifying agent to achieve the optimal catalytic effect, a mixture of tetrahydroxy-hydrochloric acid and tetrahydroxy-titanyl dihydrochloride, ferric oxide and hydrochloric acid are selected as catalysts, and the mixture of tetrahydroxy-hydrochloric acid and tetrahydroxy-titanyl dihydrochloride is prepared by the preparation method adopted in the embodiment of the present invention. In order to increase the contact area and the reaction speed between the ferroferric oxide, the mixture of the tetrahydroxy-state-unifying hydrochloric acid and the tetrahydroxy-titanium-unifying dihydrochloride and the hydrochloric acid, paramagnetic ferroferric oxide is selected, and the particle size of the paramagnetic ferroferric oxide is less than or equal to 30 nm.
In one embodiment, the water soluble aluminum salt is aluminum sulfate.
The invention also provides a preparation method of the air purifying agent, which comprises the following steps:
step 1), the ratio of the amount of the substances is (0.05-0.3): (0.002-0.02) respectively weighing ferroferric oxide and tetrahydrotitanium oxide and hydrochloric acid, and mixing to obtain a mixture;
step 2) adding hydrochloric acid into the mixture, wherein the mass ratio of the ferroferric oxide to the hydrochloric acid is as follows: 1, (8-9), uniformly mixing to obtain a mixed solution;
step 3) sequentially adding the potassium salt and the water-soluble aluminum salt into the mixed solution, wherein the ratio of the ferroferric oxide to the potassium salt to the water-soluble aluminum salt is as follows: (0.05-0.3): (0.1-0.5): (0.1-0.5) to obtain the air purifying agent.
Further, the step before step 1) further comprises:
screening ferroferric oxide with the particle size of less than or equal to 30 nm; screening the tetrahydrotitanium oxide and hydrochloric acid with the grain diameter less than or equal to 5 um.
Specifically, in one embodiment, the ferroferric oxide is put into a grinder to be ground for 30min, the rotation speed of the grinder is 800rpm, and the ferroferric oxide with the particle size of less than or equal to 30nm is screened to obtain ground ferroferric oxide powder; grinding the tetrahydrotitanium oxide hydrochloric acid in a liquid nitrogen atmosphere for 30min, grinding at the rotation speed of 200rpm, and screening the tetrahydrotitanium oxide hydrochloric acid with the particle size of less than or equal to 5um to obtain ground tetrahydrotitanium oxide hydrochloric acid; and uniformly mixing the ground ferroferric oxide powder with the ground tetrahydrotitanium oxide and hydrochloric acid to obtain a mixture.
Further, the specific preparation steps of the tetrahydrotitanium oxide and hydrochloric acid are as follows:
mixing water with the same volume as the isopropanol to obtain a solvent;
titanium tetrachloride is then added to the solvent in the following proportions: 100mL (60 g-85 g);
heating at 50-55 ℃ for 30-60 minutes to obtain a mixed solution;
and drying the mixed solution to obtain the tetrahydrotitanium oxide and hydrochloric acid.
In one embodiment, the step of drying the mixed solution includes:
and putting the mixed solution into a rotary evaporator, and drying at 65-75 ℃.
The use method of the air purifying agent prepared by the preparation method of the air purifying agent comprises the following steps: the air purifying agent is uniformly sprayed to an indoor area needing air purification by the atomizer/sprayer for 1-5 times, so that the indoor air is purified, and the whole process is convenient, simple and easy to operate.
In order to better illustrate the purifying effect of the air purifying agent of the present invention, the following examples of specific components were selected as references in the present invention.
Example 1
And respectively grinding the ferroferric oxide and the tetrahydrotitanium oxide hydrochloric acid, and screening to obtain the ferroferric oxide with the particle size of 30nm and the tetrahydrotitanium oxide hydrochloric acid with the particle size of 5 um. Mixing 0.002mol of the screened tetrahydrotitanium oxide and hydrochloric acid and 0.1mol of the screened ferroferric oxide; then adding 0.8mol of hydrochloric acid, uniformly stirring at the stirring speed of 200rpm to obtain a mixed solution; respectively weighing 0.3mol of potassium salt and 0.2mol of aluminum salt, adding the potassium salt and the aluminum salt into the mixed solution, uniformly mixing, adding deionized water, and fixing the volume to 1L to obtain the air purifying agent.
Example 2
Example 2 differs from example 1 in that: 0.01mol of the tetrahydrotitanium oxide hydrochloric acid obtained by screening and 0.1mol of the ferroferric oxide obtained by screening are mixed.
Example 3
Example 3 differs from example 1 in that: 0.02mol of the tetrahydrotitanium oxide hydrochloric acid obtained by screening and 0.1mol of the ferroferric oxide obtained by screening are mixed.
Example 4
Example 4 differs from example 1 in that: mixing 0.01mol of the screened tetrahydrotitanium oxide hydrochloric acid with 0.05mol of the screened ferroferric oxide; and 0.4mol of hydrochloric acid is added, and the mixture is stirred and mixed evenly.
Example 5
Example 5 differs from example 1 in that: mixing 0.01mol of the screened tetrahydrotitanium oxide hydrochloric acid with 0.3mol of the screened ferroferric oxide; and 2.4mol of hydrochloric acid is added, and the mixture is stirred and mixed evenly.
Example 6
Example 6 differs from example 1 in that: 0.1mol of potassium salt is weighed and added into the mixed solution.
Example 7
Example 7 differs from example 1 in that: 0.5mol of potassium salt is weighed out and added to the mixture.
Example 8
Example 8 differs from example 1 in that: 0.1mol of aluminum salt is weighed and added into the mixed solution.
Example 9
Example 9 differs from example 1 in that: 0.5mol of aluminum salt is weighed and added into the mixed solution.
Comparative example 1
Comparative example 1 differs from example 1 in that: 0mol of the screened tetrahydrotitanium oxide and hydrochloric acid and then 0.1mol of the screened ferroferric oxide are mixed.
Comparative example 2
Comparative example 2 differs from example 1 in that: 0.05mol of the tetrahydrotitanium oxide and hydrochloric acid obtained by screening and then 0.1mol of ferroferric oxide obtained by screening are mixed.
Comparative example 3
Comparative example 3 differs from example 1 in that: mixing 0.01mol of the screened tetrahydrotitanium oxide hydrochloric acid with 0mol of the screened ferroferric oxide; and 0mol of hydrochloric acid is added, and the mixture is stirred and mixed evenly.
Comparative example 4
Comparative example 4 differs from example 1 in that: mixing 0.01mol of the screened tetrahydrotitanium oxide hydrochloric acid with 0.5mol of the screened ferroferric oxide; and 4mol of hydrochloric acid is added, and the mixture is stirred and mixed evenly.
Comparative example 5
Comparative example 5 differs from example 1 in that: 0mol of potassium salt is weighed and added into the mixed solution.
Comparative example 6
Comparative example 6 differs from example 1 in that: 1mol of potassium salt is weighed and added into the mixed solution.
Comparative example 7
Comparative example 7 differs from example 1 in that: 0mol of aluminum salt is weighed and added into the mixed solution.
Comparative example 8
Comparative example 8 differs from example 1 in that: weighing 1mol of aluminum salt and adding the aluminum salt into the mixed solution.
Comparative example 9
Comparative example 9 differs from example 1 in that: an air purifying agent containing a photocatalyst is purchased from the market.
Comparative example 10
Comparative example 10 differs from example 1 in that: another air purifier containing a photocatalyst, which is commercially available, is used.
The experimental data for the example groups are given in the following table:
referring to national standard QB/T2761-2006 method for determining purification effect of indoor air purification product, two 1m samples are used3The climate chamber (A is a blank chamber, and B is a test chamber) tests the purifying effect of the invention on pollutants in the air, and the climate chamber is in a non-light or dark environment in the whole test process. Equal amounts of contamination source were charged to both climatic chambers and 5 ml of the reagent according to the invention was sprayed evenly into chamber B. After 24 hours, the concentration of the contaminant in A, C0, was measured, and the concentration of the contaminant in B, C1, was measured, and the contaminant removal rate was calculated as follows:
the results of the contaminant purification test using the air purifier claimed in the present invention in the above-mentioned example group are shown in the following table (unit: volume%):
the purification effect from the above example group shows: in the embodiment of the invention, when the tetrahydrotitanium oxide and hydrochloric acid are not added into the air purifying agent, the air purifying agent has no removal effect on harmful gases in the air, such as formaldehyde, benzene, toluene, xylene, TVOC and the like; when the ferroferric oxide and the hydrochloric acid are not added, the air purifying agent has no effect of removing harmful gases in the air, such as formaldehyde, benzene, toluene, xylene, TVOC and the like; in addition, when the potassium salt is not added, the air purifying agent has no effect of removing harmful gases in the air, such as formaldehyde, benzene, toluene, xylene, TVOC and the like. Therefore, the tetrahydrotitanium oxide and hydrochloric acid, the ferroferric oxide, the hydrochloric acid and the potassium salt in the product jointly act on harmful substances in the air, and the removal rate of the harmful substances reaches over 70 percent.
Firstly, the purification effect is analyzed from a single factor, and the following results can be obtained: first, in the experimental data of example 1, example 2, example 3 and comparative example 1 and comparative example 2, as the concentration of the tetrahydroxytitanium oxide hydrochloride is increased, the removal rate of the harmful gas is gradually increased, when the concentration of the tetrahydroxytitanium oxide hydrochloride reaches 0.01mol/L, the removal rate reaches a maximum value, and then the removal rate of the harmful gas is gradually decreased; and when the concentration is in the range of 0.002 mol/L-0.02 mol/L, the air purifying agent has better removing effect on harmful gases in the air, such as formaldehyde, benzene, toluene, xylene, TVOC and the like. Secondly, in experimental data of example 2, example 4, example 5, and comparative example 3 and comparative example 4, as the concentrations of the ferroferric oxide and the hydrochloric acid are increased, the removal rate of harmful gases is gradually increased, when the concentration of the ferroferric oxide reaches 0.1mol/L and the concentration of the hydrochloric acid reaches 0.8mol/L, the removal rate reaches the maximum value, and then the removal rate of the harmful gases is gradually decreased; and when the concentration of the ferroferric oxide is 0.05-0.3 mol/L and the concentration of the hydrochloric acid is 0.4-2.4 mol/L, the air purifying agent has a good removing effect on harmful gases in the air, such as formaldehyde, benzene, toluene, TVOC and the like. Thirdly, in the experimental data of example 2, example 6, example 7 and comparative examples 5 and 6, as the concentration of the potassium salt increases, the removal rate of the harmful gas gradually increases, and when the concentration of the potassium salt reaches 0.3mol/L, the removal rate reaches a maximum value, and then the removal rate of the harmful gas gradually decreases; and, when the concentration of the potassium salt is in the range of 0.1mol/L to 0.5mol/L, the air purifying agent has an excellent effect of removing harmful gases from indoor air. Fourth, in the experimental data of example 2, example 8, example 9 and comparative example 7 and comparative example 8, the removal rate of the harmful gas gradually increases as the concentration of the water-soluble aluminum salt increases, reaches a maximum when the concentration of the water-soluble aluminum salt reaches 0.3mol/L, and then gradually decreases; and, the air purifying agent has an excellent removing effect on harmful gases of indoor air when the concentration of the water-soluble aluminum salt is in the range of 0.1mol/L to 0.5 mol/L. However, the water-soluble aluminum salt has no significant effect on the removal rate of the harmful gas as a whole.
Secondly, the purification effect is analyzed on the whole, and the following can be clearly known: the air purifier comprises the following components in percentage by weight: when the concentration of the tetrahydrotitanium oxide and hydrochloric acid is 0.01mol/L, the concentration of the ferroferric oxide is 0.1mol/L, the concentration of the hydrochloric acid is 0.8mol/L, the concentration of the potassium salt is 0.3mol/L and the concentration of the water-soluble aluminum salt is 0.3mol/L, the air purifying agent has the optimal purifying effect on indoor polluted air. At this time, the effect of removing indoor pollutants is: the removal rate of formaldehyde reaches 94.7%, the removal rate of benzene reaches 78.9%, the removal rate of toluene reaches 84.3%, the removal rate of xylene reaches 79.2%, and the removal rate of TVOC reaches 75.6%.
Finally, the air purifying agent prepared by photocatalyst on the market is tested and compared with the air purifying agent claimed in the application for indoor air purifying effect. That is, by comparing comparative example 9 and comparative example 10 with examples 1 to 9 and comparative examples 1 to 8, it is clear that: the removal rate of the air purifiers on the market to pollutants is less than 30%, while the removal rate of the air purifiers protected in the application to pollutants in indoor air is as high as more than 70%. The air purifying agent applied and protected in the application has a far higher purifying effect on indoor polluted air than the air purifying agent on the market.
The above description is only for the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention; all equivalent changes made within the scope of the claims of the present invention are covered by the claims of the present invention.
Claims (9)
1. An air purifying agent, comprising: tetrahydrotitanium oxide, hydrochloric acid, potassium salt, ferroferric oxide, water-soluble aluminum salt and hydrochloric acid, wherein the solvent is water;
the quantity concentration of each component substance is as follows:
0.002-0.02 mol/L of tetrahydroxytitanium oxide and hydrochloric acid;
0.1-0.5 mol/L of potassium salt;
ferroferric oxide is 0.05-0.3 mol/L;
0.4-2.7 mol/L of hydrochloric acid;
0.1 to 0.5mol/L of a water-soluble aluminum salt.
2. The air purifying agent as claimed in claim 1, wherein the tetrahydroxytitanium oxide monohydrochloride is a mixture of tetrahydroxytitanium oxide monohydrochloride and tetrahydroxytitanium oxide monohydrochloride.
3. The air purifying agent as claimed in claim 1, wherein the ferroferric oxide is paramagnetic ferroferric oxide.
4. The air purifying agent as claimed in claim 1, wherein the grain size of the paramagnetic ferroferric oxide is less than or equal to 30 nm.
5. The air purifying agent according to claim 1, wherein the particle size of the tetrahydroxytitanium oxide and hydrochloric acid is less than or equal to 5 um.
6. The air purifying agent as claimed in claim 1, wherein the ratio of the amounts of the ferroferric oxide and the hydrochloric acid is 1 (8-9).
7. The preparation method of the air purifying agent is characterized by comprising the following steps of:
the ratio of the amount of the substances is (0.05-0.3): (0.002-0.02) respectively weighing ferroferric oxide and tetrahydrotitanium oxide and hydrochloric acid, and mixing to obtain a mixture;
adding hydrochloric acid into the mixture, wherein the mass ratio of the ferroferric oxide to the hydrochloric acid is as follows: 1, (8-9), uniformly mixing to obtain a mixed solution;
sequentially adding the potassium salt and the water-soluble aluminum salt to the mixed solution, wherein the ratio of the ferroferric oxide to the potassium salt to the water-soluble aluminum salt is as follows: (0.05-0.3): (0.1-0.5): (0.1-0.5) to obtain the air purifying agent.
8. The method for preparing an air purifying agent according to claim 7, wherein the tetrahydroxytitanium oxide and hydrochloric acid are prepared by the following steps:
mixing water with the same volume as the isopropanol to obtain a solvent;
titanium tetrachloride is then added to the solvent in the following proportions: 100mL (60 g-85 g);
heating at 50-55 ℃ for 30-60 minutes to obtain a mixed solution;
and drying the mixed solution to obtain the tetrahydrotitanium oxide and hydrochloric acid.
9. The method for preparing an air purifying agent according to claim 8, wherein the step of drying the mixed liquid comprises the following steps:
and putting the mixed solution into a rotary evaporator, and drying at 65-75 ℃.
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| CN101330825A (en) * | 2005-12-16 | 2008-12-24 | 日轮化学株式会社 | Aqueous composition containing metal composition, and deodorizing agent, antibacterial agent and antifungal agent composed of such aqueous composition |
| RU2472707C1 (en) * | 2011-10-05 | 2013-01-20 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пермский национальный исследовательский политехнический университет" | Method of producing titanium dioxide |
| CN110252114A (en) * | 2019-06-20 | 2019-09-20 | 深圳市中拓智森环保科技有限公司 | Air cleaning agent solution and preparation method thereof |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330825A (en) * | 2005-12-16 | 2008-12-24 | 日轮化学株式会社 | Aqueous composition containing metal composition, and deodorizing agent, antibacterial agent and antifungal agent composed of such aqueous composition |
| RU2472707C1 (en) * | 2011-10-05 | 2013-01-20 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пермский национальный исследовательский политехнический университет" | Method of producing titanium dioxide |
| CN110252114A (en) * | 2019-06-20 | 2019-09-20 | 深圳市中拓智森环保科技有限公司 | Air cleaning agent solution and preparation method thereof |
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