CN112121633A - Peculiar smell scavenger and preparation method thereof - Google Patents
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- CN112121633A CN112121633A CN202011026229.4A CN202011026229A CN112121633A CN 112121633 A CN112121633 A CN 112121633A CN 202011026229 A CN202011026229 A CN 202011026229A CN 112121633 A CN112121633 A CN 112121633A
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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
- B01D53/007—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 by irradiation
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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
- B01D53/8621—Removing nitrogen compounds
- B01D53/8634—Ammonia
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- 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
- B01D53/864—Removing carbon monoxide or hydrocarbons
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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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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
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- 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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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/802—Visible light
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Abstract
The invention belongs to the technical field of peculiar smell removal, and particularly relates to a peculiar smell remover and a preparation method thereof, wherein the peculiar smell remover is prepared from the following raw materials in parts by weight: 1-2% of copper chlorophyll sensitized nano titanium dioxide, 94-97.8% of absolute ethyl alcohol, 0.2-2% of anionic surfactant and 1-2% of dispersing agent, and the preparation method is simple in process. The main components of the odor scavenger provided by the invention are the copper chlorophyllin sensitized nano titanium dioxide and the absolute ethyl alcohol, the odor scavenger is environment-friendly and nontoxic, the copper chlorophyllin sensitized nano titanium dioxide is relatively simple in components in the absolute ethyl alcohol compared with a water solvent, stable in properties, good in dispersion effect, long in storage time and convenient to transport and store, and the copper chlorophyllin sensitized nano titanium dioxide has a good absorption effect on natural visible light, does not need to be irradiated by ultraviolet rays, and has a good use effect under the condition of natural visible light irradiation.
Description
Technical Field
The invention belongs to the technical field of odor removal, and particularly relates to an odor remover and a preparation method thereof.
Background
With the development of economic level, the living standard of people is increasingly improved, and the requirements of people on keeping environment clean and air fresh are higher and higher. However, with the acceleration of urbanization, environmental pollution is becoming more serious, and the probability of harmful substances and peculiar smells (oxygen-containing organic substances such as aldehyde, phenol and alcohol, sulfur compounds such as hydrogen sulfide and sulfur dioxide, nitrogen compounds such as ammonia and amines) which are contacted with people is increasing, so that the substances contacted with people for a long time can cause great harm to the nervous system, the respiratory system, the endocrine system, the digestive system and the like of people, and have great influence on health. How to efficiently and conveniently remove peculiar smell and harmful gas in a living scene and improve the living environment is a problem which people pay more attention to.
The common methods for removing odor harmful substances such as formaldehyde and the like at present comprise chemical odor removal, photocatalyst odor removal, activated carbon adsorption and the like. The chemical scavenger may have secondary pollution to human body and environment and the photocatalyst needs proper light irradiation after long-term use.
Disclosure of Invention
The invention aims to provide an odor scavenger which has relatively simple components, stable property, environmental friendliness and no toxicity, does not need special illumination conditions and can play a role under the illumination condition of natural visible light.
In order to achieve the technical purpose, the invention provides an odor scavenger which is characterized by being prepared from the following raw materials in parts by weight:
as an improvement, the anionic surfactant is one or more of alkyl sodium sulfonate and alkyl sodium sulfate.
As a further improvement, the dispersant is at least one of sodium polyacrylate salt and ammonium polyacrylate salt.
As a further improvement, the dispersant is sodium hexametaphosphate.
The invention also provides a preparation method of the odor scavenger, which comprises the following steps:
s1 Synthesis of Nano titanium dioxide
Adding tetrabutyl titanate into absolute ethyl alcohol at room temperature, mixing and stirring, slowly dropwise adding glacial acetic acid into the mixed solution, violently stirring to obtain a light yellow transparent solution, slowly dropwise adding distilled water, continuously stirring after dropwise adding to obtain light yellow transparent sol, aging at room temperature for 24 hours, then carrying out vacuum drying, grinding to obtain a white precursor, calcining the precursor in an electric furnace at 400 ℃, and grinding to obtain white nano titanium dioxide powder;
s2: synthesizing chlorophyll sensitized nano titanium dioxide
Dissolving copper chlorophyll in absolute ethyl alcohol to prepare a saturated solution, then adding the absolute ethyl alcohol, uniformly stirring, then adding the titanium dioxide powder prepared in the step S1, stirring at room temperature, standing in the dark for 24 hours, then centrifugally separating the nano titanium dioxide, washing with alcohol until the supernatant is colorless, then drying in vacuum, naturally cooling to room temperature, and grinding to obtain light green to dark green copper chlorophyll sensitized nano titanium dioxide;
s3: dissolving copper chlorophyll sensitized titanium dioxide in absolute ethyl alcohol added with anionic surfactant and dispersant, and stirring to form suspension.
As a further improvement, in step S2, the volume ratio of the saturated solution of copper chlorophyll to the post-added absolute ethyl alcohol is 3: 1, adding titanium dioxide powder with the mass accounting for 0.5 percent of the total weight of the saturated solution of the copper chlorophyll and the absolute ethyl alcohol.
As a further improvement, the temperature for vacuum drying the nano titanium dioxide in the step S1 is 80 ℃, and the drying time is 24 hours.
As a further improvement, the temperature for vacuum drying of the titanium dioxide obtained by centrifugal separation in the step S2 is 80 ℃ and the drying time is 8 hours.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
the main components of the odor scavenger provided by the invention are the copper chlorophyllin sensitized nano titanium dioxide and the absolute ethyl alcohol, the odor scavenger is environment-friendly and nontoxic, the copper chlorophyllin sensitized nano titanium dioxide is relatively simple in components in the absolute ethyl alcohol compared with a water solvent, stable in properties, good in dispersion effect, long in storage time and convenient to transport and store, and the copper chlorophyllin sensitized nano titanium dioxide has a good absorption effect on natural visible light, does not need to be irradiated by ultraviolet rays, and has a good use effect under the condition of natural visible light irradiation.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
The odor scavenger is prepared from the following raw materials in parts by weight:
specifically, the anionic surfactant is sodium alkyl sulfonate, and the dispersant is sodium polyacrylate.
The preparation method comprises the following steps:
s1 Synthesis of Nano titanium dioxide
Taking 35 parts by weight of absolute ethyl alcohol at room temperature, adding 10 parts by weight of tetra-n-butyl titanate, mixing and stirring, slowly dripping glacial acetic acid into the mixed solution after 0.5 hour, violently stirring for 0.5 hour to obtain a light yellow transparent solution, slowly dripping 8 parts by weight of distilled water, continuously stirring for 1 hour after dripping is finished to obtain light yellow transparent sol, aging at room temperature for 24 hours, carrying out vacuum drying at the drying temperature of 80 ℃ for 24 hours, grinding to obtain a white precursor, calcining the precursor in an electric furnace at the temperature of 400 ℃, and grinding to obtain white nano titanium dioxide powder;
s2: synthesizing chlorophyll sensitized nano titanium dioxide
Dissolving copper chlorophyll in absolute ethyl alcohol to prepare a saturated solution, then adding the absolute ethyl alcohol, and uniformly stirring, wherein the volume ratio of the saturated solution of copper chlorophyll to the later added absolute ethyl alcohol is 3: 1, adding the titanium dioxide powder prepared in the step S1, wherein the mass of the titanium dioxide powder accounts for 0.5% of the total weight of the saturated solution of the copper chlorophyll and the absolute ethyl alcohol, stirring for 3 hours at room temperature, standing for 24 hours in the dark, centrifugally separating the nano titanium dioxide, washing with alcohol until the supernatant is colorless, then vacuum-drying for 8 hours at 80 ℃, naturally cooling to room temperature, and grinding to obtain the light green to dark green copper chlorophyll sensitized nano titanium dioxide;
s3: dissolving the chlorophyll copper-sensitized titanium dioxide in absolute ethyl alcohol added with sodium alkyl sulfonate and sodium polyacrylate, and stirring to form suspension.
Example two
The odor scavenger is prepared from the following raw materials in parts by weight:
specifically, the anionic surfactant is sodium alkyl sulfate, and the dispersant is ammonium polyacrylate.
The preparation method of the odor scavenger comprises the following steps:
s1: synthesis of nano titanium dioxide
Taking 35 parts by weight of absolute ethyl alcohol at room temperature, adding 10 parts by weight of tetra-n-butyl titanate, mixing and stirring, slowly dripping glacial acetic acid into the mixed solution after 0.5 hour, violently stirring for 0.5 hour to obtain a light yellow transparent solution, slowly dripping 8 parts by weight of distilled water, continuously stirring for 1 hour after dripping is finished to obtain light yellow transparent sol, aging at room temperature for 24 hours, carrying out vacuum drying at the drying temperature of 80 ℃ for 24 hours, grinding to obtain a white precursor, calcining the precursor in an electric furnace at the temperature of 400 ℃, and grinding to obtain white nano titanium dioxide powder;
s2: synthesizing chlorophyll sensitized nano titanium dioxide
Dissolving copper chlorophyll in absolute ethyl alcohol to prepare a saturated solution, then adding the absolute ethyl alcohol, and uniformly stirring, wherein the volume ratio of the saturated solution of copper chlorophyll to the later added absolute ethyl alcohol is 3: 1, adding the titanium dioxide powder prepared in the step S1, wherein the mass of the titanium dioxide powder accounts for 0.5% of the total weight of the saturated solution of the copper chlorophyll and the absolute ethyl alcohol, stirring for 3 hours at room temperature, standing for 24 hours in the dark, centrifugally separating the nano titanium dioxide, washing with alcohol until the supernatant is colorless, then vacuum-drying for 8 hours at 80 ℃, naturally cooling to room temperature, and grinding to obtain the light green to dark green copper chlorophyll sensitized nano titanium dioxide;
s3: dissolving the chlorophyll copper-sensitized titanium dioxide in absolute ethyl alcohol added with sodium alkyl sulfonate and sodium polyacrylate, and stirring to form suspension.
EXAMPLE III
The odor scavenger is prepared from the following raw materials in parts by weight:
specifically, the anionic surfactant is a mixture of sodium alkyl sulfonate and sodium alkyl sulfate, and the dispersant is sodium hexametaphosphate.
The preparation method of the odor scavenger comprises the following steps:
s1: synthesis of nano titanium dioxide
Taking 35 parts by weight of absolute ethyl alcohol at room temperature, adding 10 parts by weight of tetra-n-butyl titanate, mixing and stirring, slowly dripping glacial acetic acid into the mixed solution after 0.5 hour, violently stirring for 0.5 hour to obtain a light yellow transparent solution, slowly dripping 8 parts by weight of distilled water, continuously stirring for 1 hour after dripping is finished to obtain light yellow transparent sol, aging at room temperature for 24 hours, carrying out vacuum drying at the drying temperature of 80 ℃ for 24 hours, grinding to obtain a white precursor, calcining the precursor in an electric furnace at the temperature of 400 ℃, and grinding to obtain white nano titanium dioxide powder;
s2: synthesizing chlorophyll sensitized nano titanium dioxide
Dissolving copper chlorophyll in absolute ethyl alcohol to prepare a saturated solution, then adding the absolute ethyl alcohol, and uniformly stirring, wherein the volume ratio of the saturated solution of copper chlorophyll to the later added absolute ethyl alcohol is 3: 1, adding the titanium dioxide powder prepared in the step S1, wherein the mass of the titanium dioxide powder accounts for 0.5% of the total weight of the saturated solution of the copper chlorophyll and the absolute ethyl alcohol, stirring for 3 hours at room temperature, standing for 24 hours in the dark, centrifugally separating the nano titanium dioxide, washing with alcohol until the supernatant is colorless, then vacuum-drying for 8 hours at 80 ℃, naturally cooling to room temperature, and grinding to obtain the light green to dark green copper chlorophyll sensitized nano titanium dioxide;
s3: dissolving the chlorophyll copper-sensitized titanium dioxide in absolute ethyl alcohol added with sodium alkyl sulfonate and sodium polyacrylate, and stirring to form suspension.
The odor scavenger prepared by the embodiment has good odor removing effect on peculiar smells of kitchens, decoration formaldehyde and the like, culture excrement peculiar smells, automobile interior peculiar smells and the like under the condition of natural visible light when being sprayed for use, has obvious effect on removing substances such as formaldehyde, ammonia gas, benzene and the like, and has short removal time. According to the relevant national standards, the removal rate of the extracted air is over 80 percent, and the removal rate of the formaldehyde, the bank and the benzene is over 90 percent.
The peculiar smell remover provided by the invention can be used by adding water according to a certain proportion when in specific use, but can not be stored after being added with water and needs to be used up at one time.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. The peculiar smell remover is characterized by being prepared from the following raw materials in parts by weight:
2. an odor scavenger according to claim 1, wherein said anionic surfactant is at least one of sodium alkyl sulfonate and sodium alkyl sulfate.
3. An odor scavenger according to claim 1, wherein said dispersant is at least one of a sodium polyacrylate salt and an ammonium polyacrylate salt.
4. An odor scavenger according to claim 1 wherein said dispersant is sodium hexametaphosphate.
5. A method of preparing an odor scavenger according to claim 1, comprising the steps of:
s1 Synthesis of Nano titanium dioxide
Adding tetrabutyl titanate into absolute ethyl alcohol at room temperature, mixing and stirring, slowly dropwise adding glacial acetic acid into the mixed solution, violently stirring to obtain a light yellow transparent solution, slowly dropwise adding distilled water, continuously stirring after dropwise adding to obtain light yellow transparent sol, aging at room temperature for 24 hours, then carrying out vacuum drying, grinding to obtain a white precursor, calcining the precursor in an electric furnace at 400 ℃, and grinding to obtain white nano titanium dioxide powder;
s2: synthesizing chlorophyll sensitized nano titanium dioxide
Dissolving copper chlorophyll in absolute ethyl alcohol to prepare a saturated solution, then adding the absolute ethyl alcohol, uniformly stirring, then adding the titanium dioxide powder prepared in the step S1, stirring at room temperature, standing in the dark for 24 hours, then centrifugally separating the nano titanium dioxide, washing with alcohol until the supernatant is colorless, then drying in vacuum, naturally cooling to room temperature, and grinding to obtain light green to dark green copper chlorophyll sensitized nano titanium dioxide;
s3: dissolving copper chlorophyll sensitized titanium dioxide in absolute ethyl alcohol added with anionic surfactant and dispersant, and stirring to form suspension.
6. The method for preparing an odor scavenger according to claim 5, wherein in the step S2, the volume ratio of the saturated solution of copper chlorophyll to the post-added absolute ethyl alcohol is 3: 1, adding titanium dioxide powder with the mass accounting for 0.5 percent of the total weight of the saturated solution of the copper chlorophyll and the absolute ethyl alcohol.
7. The method for preparing an odor scavenger according to claim 5, wherein the temperature of the nano titanium dioxide vacuum drying in step S1 is 80 ℃ and the drying time is 24 hours.
8. The method according to claim 5, wherein the temperature of vacuum drying the titanium dioxide obtained by centrifugal separation in step S2 is 80 ℃ and the drying time is 8 hours.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537061A (en) * | 2022-09-23 | 2022-12-30 | 四川宏凯化工科技有限公司 | Water-based paint odor scavenger and preparation method thereof |
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