CN118454673A - C/gamma-Fe for purifying automobile2O3/TiO2Nanocomposite dispersion and method for preparing the same - Google Patents
C/gamma-Fe for purifying automobile2O3/TiO2Nanocomposite dispersion and method for preparing the same Download PDFInfo
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- CN118454673A CN118454673A CN202410344304.3A CN202410344304A CN118454673A CN 118454673 A CN118454673 A CN 118454673A CN 202410344304 A CN202410344304 A CN 202410344304A CN 118454673 A CN118454673 A CN 118454673A
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- 229910001566 austenite Inorganic materials 0.000 title claims abstract description 49
- 239000006185 dispersion Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 25
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 96
- 239000002114 nanocomposite Substances 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 44
- 238000000746 purification Methods 0.000 claims abstract description 17
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052709 silver Inorganic materials 0.000 claims abstract description 13
- 239000004332 silver Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 12
- 229940119217 chamomile extract Drugs 0.000 claims description 11
- 235000020221 chamomile extract Nutrition 0.000 claims description 11
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 229920002472 Starch Polymers 0.000 claims description 7
- 235000019698 starch Nutrition 0.000 claims description 7
- 239000008107 starch Substances 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 5
- 238000005530 etching Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 239000011812 mixed powder Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 230000000844 anti-bacterial effect Effects 0.000 claims description 2
- 230000000840 anti-viral effect Effects 0.000 claims description 2
- 230000001877 deodorizing effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 20
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 18
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 12
- 230000001699 photocatalysis Effects 0.000 abstract description 8
- 238000002360 preparation method Methods 0.000 abstract description 7
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 6
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 4
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- 230000005389 magnetism Effects 0.000 abstract description 2
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- 239000002957 persistent organic pollutant Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- 239000003973 paint Substances 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 230000036541 health Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
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Abstract
The invention discloses a C/gamma-Fe 2O3/TiO2 nano composite material dispersion liquid for automobile purification, in particular to raw material components thereof, and a preparation method of the C/gamma-Fe 2O3/TiO2 nano composite material dispersion liquid for automobile purification. Compared with the prior art, the technical scheme of the invention has the following advantages: the paint does not contain formaldehyde, benzene, dimethylbenzene and other volatile harmful substances, and is safer and more environment-friendly; (2) The separation and recovery of the photocatalytic material are realized through the magnetism of gamma-Fe 2O3, so that the reusability of the photocatalytic material is improved; (3) The silver dispersion liquid is added to synthesize a new MOFs material through a high-speed shearing stirring method, and the material has a special pore structure and can absorb and decompose a large amount of organic pollutant gases such as formaldehyde in a short time.
Description
Technical Field
The invention belongs to the field of purification materials, and particularly relates to a C/gamma-Fe 2O3/TiO2 nano composite material dispersion liquid for automobile purification and a preparation method thereof.
Background
In recent years, the whole people establish new consciousness of family health protection, and environmental health becomes an important means for people to protect. Market demands such as space purification, environment treatment, health protection and the like are further stimulated, large consumption behaviors of indoor/in-vehicle space purification, health protection and the like are promoted, and healthy industries such as space purification, environment treatment, health protection and the like and cross-boundary healthy products and services are expected to meet new development opportunities.
The odor source in the automobile mainly comprises the emission of automobile parts and materials, including the emission of parts and materials such as seats, instrument panels, door panels, ceilings, carpets and the like. Among these off-flavors are not only formaldehyde, benzene, toluene, TVOC and other pollutants, but also bacteria, viruses, PM2.5, PM10 and the like, which can cause irreversible harm to the health of people such as respiratory system, circulatory system and nervous system.
The existing method for removing the peculiar smell in the vehicle mainly comprises the steps of active carbon adsorption, wherein the active carbon can only adsorb pollutants and cannot degrade, the peculiar smell in the vehicle cannot be permanently purified fundamentally, and the active carbon can simply reach a full state after adsorbing quantitative impurities and has no effect, so that the application time is relatively short.
Disclosure of Invention
Aiming at the situation, the invention provides the C/gamma-Fe 2O3/TiO2 nano composite material dispersion liquid for purifying the automobile and the preparation method thereof, wherein the composite material has larger specific surface area, better adsorption capacity for pollutants and effective separation performance for photo-generated electrons and hole energy, so that the C/gamma-Fe 2O3/TiO2 nano composite material has obvious photocatalytic activity, and the C/gamma-Fe 2O3/TiO2 nano composite material with obvious photocatalytic activity has good degradation effect for pollutants such as formaldehyde, CO 2、SO2、NOx, bacterial viruses and the like in the automobile under visible light/low light, so that the peculiar smell in the automobile is purified permanently, and the composite material does not contain formaldehyde, benzene, xylene and other volatile harmful substances, and is safer and more environment-friendly.
The invention provides the following technical scheme: the invention provides a C/gamma-Fe 2O3/TiO2 nano composite material dispersion liquid for automobile purification, which comprises the following raw materials in parts by weight: 70-80 parts of deionized water, 10-20 parts of C/gamma-Fe 2O3/TiO2 nano composite material, 5-10 parts of chamomile extract and 2-3 parts of silver dispersion.
In the scheme, the method comprises the following steps: the C/gamma-Fe 2O3/TiO2 nanometer composite material dispersion liquid for automobile purification comprises the following specific use methods: after the C/gamma-Fe 2O3/TiO2 composite solution is sprayed on the surface of an automobile ceiling and solidified at 50-60 ℃, the antibacterial/antiviral/deodorizing performance of the space in the automobile can be effectively realized.
As another object of the present invention: the invention also provides a preparation method of the C/gamma-Fe 2O3/TiO2 nano composite material dispersion liquid for automobile purification, which specifically comprises the following steps:
(1) Preparing a C/gamma-Fe 2O3/TiO2 nano composite material by adopting a calcination method and an acid etching method;
(2) Evenly mixing 70-80 parts of deionized water, 10-20 parts of C/gamma-Fe 2O3/TiO2 nano composite material, 5-10 parts of chamomile extract and 2-3 parts of silver dispersion;
(3) Stirring by a high-speed dispersing homogenizer to obtain uniform C/gamma-Fe 2O3/TiO2 nano composite material dispersion.
Further, the C/gamma-Fe 2O3/TiO2 nano composite material is prepared from 20-40 parts of starch, 5-8 parts of gamma-Fe 2O3 and 50-75 parts of TiO 2 as raw materials, and the specific steps of preparing the C/gamma-Fe 2O3/TiO2 nano composite material by adopting a calcination method and an acid etching method are as follows:
(1) Uniformly mixing 20-40 parts of starch, 5-8 parts of gamma-Fe 2O3 and 50-75 parts of TiO 2, heating the uniformly mixed powder to 800 ℃ at the speed of 3-10 ℃/min in a muffle furnace, keeping the temperature for 2-4 hours, and cooling to normal temperature at the speed of 10-15 ℃/min to obtain a calcined product;
(2) The calcined product is washed for a plurality of times by hydrochloric acid heat solution with the concentration of 3.0-5.0mol/L and deionized water in sequence, and iron and other metal oxides or salts are removed;
(3) Finally, drying in a baking oven at 45-60 ℃ to obtain the C/gamma-Fe 2O3/TiO2 nano composite material.
Further, carbonizing the starch in the step (1) for 2-4 hours at 800 ℃ to obtain C in the C/gamma-Fe 2O3/TiO2 nano composite material.
The beneficial effects obtained by the invention by adopting the structure are as follows: compared with the prior art, the C/gamma-Fe 2O3/TiO2 nano composite material dispersion liquid for automobile purification and the preparation method thereof provided by the invention have the following advantages:
(1) The nanocomposite does not contain formaldehyde, benzene, dimethylbenzene and other volatile harmful substances, and is safer and more environment-friendly;
(2) The separation and recovery of the photocatalytic material are realized through the magnetism of gamma-Fe 2O3, so that the reusability of the photocatalytic material is improved;
(3) The silver dispersion liquid is added to synthesize a new MOFs material through a high-speed shearing stirring method, and the material has a special pore structure and can absorb and decompose a large amount of organic pollutant gases such as formaldehyde in a short time.
The preparation method of the C/gamma-Fe 2O3/TiO2 nano composite material dispersion liquid provided by the invention has the advantages that the composite material has larger specific surface area, better adsorption capacity on pollutants and effective separation of photo-generated electrons and holes, so that the C/gamma-Fe 2O3/TiO2 nano composite material has remarkable photocatalytic activity.
The C/gamma-Fe 2O3/TiO2 nano composite material with obvious photocatalytic activity is sprayed on an automobile ceiling, and after being cured for 5-10 minutes at 50-60 ℃, the composite material has good degradation effect on pollutants such as formaldehyde, CO 2、SO2、NOx, bacterial viruses and the like in the automobile under visible light/low light level, so that the peculiar smell in the automobile is permanently purified fundamentally.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Firstly, preparing a C/gamma-Fe 2O3/TiO2 nano composite material:
(1) Firstly, uniformly mixing 30 parts of starch, 8 parts of gamma-Fe 2O3 and 62 parts of TiO 2, heating the uniformly mixed powder to 800 ℃ at the speed of 3-10 ℃/min in a muffle furnace, then keeping the temperature for 2-4 hours, and cooling to normal temperature at the speed of 10-15 ℃/min to obtain a calcined product;
(2) The calcined product is washed for 3 times by a hydrochloric acid hot solution with the concentration of 3.0-5.0mol/L and deionized water in sequence, and iron and other metal oxides or salts are removed;
(3) Finally, drying in a baking oven at 45-60 ℃ to obtain the C/gamma-Fe 2O3/TiO2 nano composite material.
The composite material dispersion liquid comprises the following components: 80 parts of deionized water, 10 parts of C/gamma-Fe 2O3/TiO2 nano composite material, 8 parts of chamomile extract and 2 parts of silver dispersion.
(1) Preparing a C/gamma-Fe 2O3/TiO2 nano composite material by adopting a calcination method and an acid etching method;
(2) Evenly mixing 80 parts of deionized water, 10 parts of C/gamma-Fe 2O3/TiO2 nano composite material, 8 parts of chamomile extract and 2 parts of silver dispersion;
(3) Stirring by a high-speed dispersing homogenizer to obtain uniform C/gamma-Fe 2O3/TiO2 nano composite material dispersion.
The prepared C/gamma-Fe 2O3/TiO2 nanometer composite material dispersion liquid is sprayed on 10 vehicles successively, after curing for 5 minutes at 50-60 ℃, the vehicles are placed in an outdoor space after 12 hours, doors and windows of the vehicles are closed, the air quality in the vehicles is tested after 12 hours, the formaldehyde content of the vehicles is lower than 0.01mg/m 3 standard of 'in-passenger-vehicle air quality evaluation guidelines' in China, and the TVOC content is lower than 0.05mg/m 3.
Example 2
First, a C/gamma-Fe 2O3/TiO2 nanocomposite was prepared by the method of example 1.
The composite material dispersion liquid comprises the following components: 70 parts of deionized water, 20 parts of C/gamma-Fe 2O3/TiO2 nano composite material, 7 parts of chamomile extract and 3 parts of silver dispersion. A homogeneous C/gamma-Fe 2O3/TiO2 nanocomposite dispersion was prepared using the above components and the method of example 1.
The prepared uniform C/gamma-Fe 2O3/TiO2 nanometer composite material dispersion liquid is sprayed on 10 vehicles successively, after curing for 10 minutes at 50-60 ℃, the vehicles are placed in an outdoor space after 12 hours, doors and windows of the vehicles are closed, the air quality in the vehicles is tested after 12 hours, the formaldehyde content of the vehicles is lower than 0.01mg/m 3 standard of 'in-passenger-vehicle air quality evaluation guidelines' in China, and the TVOC content is lower than 0.05mg/m 3.
Comparative example 1
The composition of the dispersion liquid is as follows: 80 parts of deionized water, 10 parts of TiO 2 nanocomposite, 8 parts of chamomile extract and 2 parts of silver dispersion.
(1) Uniformly mixing 80 parts of deionized water, 10 parts of TiO 2 nanocomposite, 8 parts of chamomile extract and 2 parts of silver dispersion;
(2) Stirring by a high-speed dispersing homogenizer to obtain uniform nanocomposite dispersion.
10 Vehicles are sprayed in turn by adopting the prepared dispersion liquid, after curing for 10 minutes at 50-60 ℃, the vehicles are placed in an outdoor space after 12 hours, doors and windows of the vehicles are closed, the air quality in the vehicles is tested after 12 hours, the formaldehyde content of the vehicles is higher than 0.01mg/m 3 of national standard of 'evaluation guidelines for air quality in passenger vehicles', and the TVOC content is higher than 0.05mg/m 3.
Comparative example 2
The composition of the dispersion liquid is as follows: 70 parts of deionized water, 20 parts of TiO 2 nanocomposite, 7 parts of chamomile extract and 3 parts of silver dispersion.
(1) Uniformly mixing 70 parts of deionized water, 20 parts of TiO 2 nanocomposite, 7 parts of chamomile extract and 3 parts of silver dispersion;
(2) Stirring by a high-speed dispersing homogenizer to obtain uniform nanocomposite dispersion.
10 Vehicles are sprayed in turn by adopting the prepared dispersion liquid, after curing for 10 minutes at 50-60 ℃, the vehicles are placed in an outdoor space after 12 hours, doors and windows of the vehicles are closed, the air quality in the vehicles is tested after 12 hours, the formaldehyde content of the vehicles is higher than 0.01mg/m 3 of national standard of 'evaluation guidelines for air quality in passenger vehicles', and the TVOC content is higher than 0.05mg/m 3.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The C/gamma-Fe 2O3/TiO2 nanocomposite dispersion for automobile purification is characterized by comprising the following raw materials in parts by weight: 70-80 parts of deionized water, 10-20 parts of C/gamma-Fe 2O3/TiO2 nano composite material, 5-10 parts of chamomile extract and 2-3 parts of silver dispersion.
2. The C/γ -Fe 2O3/TiO2 nanocomposite dispersion for automotive purification according to claim 1, characterized in that it is specifically used by: after the C/gamma-Fe 2O3/TiO2 composite solution is sprayed on the surface of an automobile ceiling and solidified at 50-60 ℃, the antibacterial/antiviral/deodorizing performance of the space in the automobile can be effectively realized.
3. The method for preparing a C/γ -Fe 2O3/TiO2 nanocomposite dispersion for purification of automobiles according to any one of claims 1 to 2, characterized by comprising the steps of:
(1) Preparing a C/gamma-Fe 2O3/TiO2 nano composite material by adopting a calcination method and an acid etching method;
(2) Evenly mixing 70-80 parts of deionized water, 10-20 parts of C/gamma-Fe 2O3/TiO2 nano composite material, 5-10 parts of chamomile extract and 2-3 parts of silver dispersion;
(3) Stirring by a high-speed dispersing homogenizer to obtain uniform C/gamma-Fe 2O3/TiO2 nano composite material dispersion.
4. The method for preparing a C/γ -Fe 2O3/TiO2 nanocomposite dispersion for purification of automobiles according to claim 3, wherein the C/γ -Fe 2O3/TiO2 nanocomposite is prepared from, as raw materials, 20 to 40 parts of starch, 5 to 8 parts of γ -Fe 2O3, and 50 to 75 parts of TiO 2;
The specific steps for preparing the C/gamma-Fe 2O3/TiO2 nanometer composite material by adopting a calcination method and an acid etching method are as follows:
(1) Uniformly mixing 20-40 parts of starch, 5-8 parts of gamma-Fe 2O3 and 50-75 parts of TiO 2, heating the uniformly mixed powder to 800 ℃ at the speed of 3-10 ℃/min in a muffle furnace, keeping the temperature for 2-4 hours, and cooling to normal temperature at the speed of 10-15 ℃/min to obtain a calcined product;
(2) The calcined product is washed for a plurality of times by hydrochloric acid heat solution with the concentration of 3.0-5.0mol/L and deionized water in sequence, and iron and other metal oxides or salts are removed;
(3) Finally, drying in a baking oven at 45-60 ℃ to obtain the C/gamma-Fe 2O3/TiO2 nano composite material.
5. The method for preparing a C/γ -Fe 2O3/TiO2 nanocomposite dispersion for purification of automobiles according to claim 4, wherein the starch in step (1) is carbonized at 800 ℃ for 2 to 4 hours to obtain C in the C/γ -Fe 2O3/TiO2 nanocomposite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410344304.3A CN118454673A (en) | 2024-03-25 | 2024-03-25 | C/gamma-Fe for purifying automobile2O3/TiO2Nanocomposite dispersion and method for preparing the same |
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| CN202410344304.3A CN118454673A (en) | 2024-03-25 | 2024-03-25 | C/gamma-Fe for purifying automobile2O3/TiO2Nanocomposite dispersion and method for preparing the same |
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