CN114984914B - Gangue-based adsorption material, gangue-based adsorption deodorizing material and application - Google Patents
Gangue-based adsorption material, gangue-based adsorption deodorizing material and application Download PDFInfo
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Abstract
The application provides a gangue-based adsorption material, a gangue-based adsorption deodorizing material and application, wherein the gangue-based adsorption material consists of an active component and a carrier component; the active component is one or more of ethylene urea, glutamic acid, L-lysine, glycine, manganese dioxide and potassium permanganate; the carrier component is one or more of bentonite, diatomite and coal gangue. The gangue-based adsorption deodorizing material consists of a gangue-based adsorbing material and deodorizing components, wherein the deodorizing components are tea leaves and/or dried orange peel. The gangue-based adsorption material disclosed by the application has the advantages that the active component is combined with the carrier component, so that the adsorption quantity and adsorption rate of formaldehyde gas at room temperature are greatly improved, the adsorption capacity of formaldehyde in the environment is enhanced, and the purification requirement of formaldehyde in indoor air is further met. The odor removing component, the active component and the carrier component are combined, so that the odor removing component has remarkable adsorption effect on the odor gas, and further the odor removing requirement on indoor air is met.
Description
Technical Field
The application belongs to the technical field of indoor air purification, relates to an air purification material, and in particular relates to a gangue-based adsorption material, a gangue-based adsorption deodorizing material and application.
Background
With the advancement of society and the improvement of the living standard of people, a large amount of building materials and finishing materials add to the comfort of the home environment, and also cause pollution of indoor air, wherein 65% of volatile organic pollutants come from formaldehyde gas. Formaldehyde is a colorless, strongly irritating gas that was identified as a class 1 carcinogen in 2004 by the world health organization international cancer research Institute (IARC). Short-term exposure to formaldehyde may cause abnormal immune functions of organs such as lung and liver, and long-term exposure to formaldehyde may cause more serious diseases such as cancer.
At present, formaldehyde removal, odor removal and sterilization methods mainly comprise a plant purification method, a ventilation method, a plasma method, a physical adsorption method, an ozone oxidation method, a photocatalytic oxidation method and the like. Wherein the physical adsorption method is one of the most widely used methods for removing formaldehyde and odor, and the common adsorption carrier is selected from active carbon, molecular sieve and the like. The existing adsorption carrier has limited adsorption capacity, and is difficult to meet the purification requirement of formaldehyde and the removal requirement of peculiar smell. In addition, the method has the defects of short service life, easy secondary pollution and the like.
Gangue is a main industrial solid waste separated from lump coal in the coal preparation process, and increases along with the increase of energy demand, and the gangue is highly efficiently treated to become a worldwide difficult problem because a large amount of accumulation occupies a large area of land resources, thereby inducing environmental problems such as land degradation, groundwater pollution and the like.
Disclosure of Invention
Aiming at the defects existing in the prior art, the application aims to provide a gangue-based adsorption material, a gangue-based adsorption deodorizing material and application thereof, and solves the technical problems that the adsorption material in the prior art is difficult to meet the purification requirement of formaldehyde and the deodorizing requirement of the adsorption material.
In order to solve the technical problems, the application adopts the following technical scheme:
the gangue-based adsorption material consists of an active component and a carrier component, wherein the mass ratio of the active component to the carrier component is (0.6-1): 10;
the active component is one or more of ethylene urea, glutamic acid, L-lysine, glycine, manganese dioxide and potassium permanganate;
the carrier component is one or more of bentonite, diatomite and coal gangue.
The application also has the following technical characteristics:
preferably, the active component consists of ethylene urea, L-lysine and potassium permanganate, and the mass ratio of the ethylene urea to the L-lysine to the potassium permanganate is 5:1:1; the carrier component consists of bentonite, diatomite and coal gangue, wherein the mass ratio of the bentonite to the diatomite to the coal gangue is 5:3:2.
Preferably, or the active component consists of ethylene urea and glycine, wherein the mass ratio of the ethylene urea to the glycine is 1:1; the carrier component consists of bentonite, diatomite and coal gangue, wherein the mass ratio of the bentonite to the diatomite to the coal gangue is 6:3:1.
Specifically, the preparation method of the gangue-based adsorption material specifically comprises the following steps:
adding water into the active component and uniformly stirring to obtain an active component solution;
step two, adding a carrier component into the active component solution prepared in the step one, and uniformly stirring to prepare a mixture;
and thirdly, impregnating the mixture obtained in the second step for 20-30 h, and curing the impregnated mixture at 80-90 ℃ for 3-5 h to obtain the gangue-based adsorption material.
Specifically, in the first step, the mass ratio of water to active components is (6-8): (0.6-1).
The application also protects the application of the gangue-based adsorption material as formaldehyde adsorption material in indoor air purification.
Specifically, the application includes: 5g of gangue-based adsorption material is put into a closed container, the initial formaldehyde concentration in the closed container is 3mg/mL, and after 24 hours of standing, the residual formaldehyde concentration in the closed container is 0.02-0.8 mg/mL.
Preferably, the application comprises: 5g of gangue-based adsorption material is placed in a closed container, the initial formaldehyde concentration in the closed container is 3mg/mL, and after 24 hours of standing, the residual formaldehyde concentration in the closed container is 0.02mg/mL.
The application also protects a gangue-based adsorption deodorizing material, which consists of the gangue-based adsorption material and deodorizing components; the odor-removing component is tea leaves and/or dried orange peel;
the mass ratio of the gangue-based adsorption material to the odor-removing component is (10.7-11): (1-2).
The application also protects the application of the gangue-based adsorption deodorizing material as formaldehyde adsorption material and peculiar smell removing material in indoor air purification.
Compared with the prior art, the application has the following technical effects:
the active component of the gangue-based adsorption material can react with formaldehyde to generate hydroxymethyl derivatives by utilizing the amino groups of the active component, so that the chemical decomposition of formaldehyde is realized. The carrier component has a microporous structure, and has a large specific surface area, so that on one hand, enough adhesion space can be provided for the active component, and on the other hand, formaldehyde can be adsorbed. The active component is combined with the carrier component, so that the adsorption quantity and adsorption rate of formaldehyde gas at room temperature are greatly improved, the adsorption capacity of formaldehyde in the environment is enhanced, and the purification requirement of formaldehyde in indoor air is further met.
The odor removing component is also added on the basis of the active component and the carrier component, and the odor removing component is combined with the active component and the carrier component, so that the odor removing material has remarkable adsorption effect on odor gases such as the sour bamboo shoots, the odorized eggs and the like, and further meets the requirements on removing the odor of indoor air.
In the gangue-based adsorption material, the carrier component adopts bentonite, diatomite and gangue, and the gangue-based adsorption material has the advantages of simple components, no toxicity and low economic cost.
The gangue-based adsorption material adopts the gangue, so that the efficient secondary utilization of the gangue is realized, the economic added value of the gangue is improved, and the environment-friendly effect is realized.
Drawings
FIG. 1 is a schematic diagram of a preparation process of a gangue-based adsorption material and a gangue-based adsorption deodorizing material.
The following examples illustrate the application in further detail.
Detailed Description
All the raw materials in the present application, unless otherwise specified, are known in the prior art, for example, coal gangue, bentonite and diatomaceous earth are known in the prior art to have a particle size of 200 mesh, and the composition of oxides in the coal gangue, bentonite and diatomaceous earth is shown in tables 1, 2 and 3:
TABLE 1 oxide composition of gangue
| Oxide compound | CaO | MgO | SiO 2 | Al 2 O 3 | Fe 2 O 3 | TiO 2 | K 2 O | Na 2 O | Loss |
| wt.％ | 0.82 | 1.57 | 61.39 | 23.76 | 4.14 | 0.79 | 2.82 | 1.62 | 2.11 |
Table 2 oxide composition of bentonite
| Oxide compound | SiO 2 | Al 2 O 3 | CaO | MgO | K 2 O | Na 2 O | Fe 2 O 3 | FeO | Loss |
| wt.％ | 69.32 | 14.27 | 1.99 | 2.69 | 1.04 | 1.58 | 1.84 | 0.63 | 0.27 |
TABLE 3 oxide composition of diatomaceous earth
| Oxide compound | SiO 2 | Al 2 O 3 | Fe 2 O 3 | CaO | MgO | Loss |
| wt.％ | 92.75 | 2.57 | 0.54 | 0.29 | 0.19 | 2.89 |
In the application, the following components are added:
the performance test process of formaldehyde adsorption effect is: 5g of the adsorption material is placed in a closed container, the initial formaldehyde concentration in the closed container is 3mg/mL, and after 24 hours of standing, the residual formaldehyde concentration in the closed container is detected by adopting a formaldehyde detection kit known in the prior art.
The performance test process of the peculiar smell removing effect comprises the following steps: 5g of the adsorption deodorizing material is put into a closed container, 1g of the odor bamboo shoots are contained in the closed container, and after the closed container is placed for 24 hours, the odor removing effect of the adsorption deodorizing material is judged by smelling the odor.
The following specific embodiments of the present application are given according to the above technical solutions, and it should be noted that the present application is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solutions of the present application fall within the protection scope of the present application.
Example 1:
the embodiment provides a coal gangue-based adsorption material, which consists of an active component and a carrier component, wherein the active component consists of 0.5g of ethylene urea, 0.1g of L-lysine and 0.1g of potassium permanganate; the carrier component consists of 5g of bentonite, 3g of kieselguhr and 2g of coal gangue.
As shown in fig. 1, the preparation method of the gangue-based adsorption material comprises the following steps:
step one, adding 8mL of water into the active component, stirring for 0.5h to fully dissolve the active component, and preparing an active component solution;
step two, placing the active component solution prepared in the step one into a stirring tank, adding the carrier components which are mixed in advance, and fully and uniformly stirring to prepare a mixture;
and thirdly, soaking the mixture obtained in the second step for 24 hours, and then placing the soaked mixture into a constant-temperature drying oven for curing for 4 hours at 90 ℃ to obtain the coal gangue-based adsorption material.
In this example, the formaldehyde adsorption effect of examples 1 to 9 was tested, and the results are shown in table 4.
Example 2:
this example shows a coal gangue-based adsorbent material consisting of an active component and a carrier component, wherein the active component consists of 0.5g of ethylene urea and 0.5g of glycine; the carrier component consists of 6g of bentonite, 3g of kieselguhr and 1g of coal gangue.
In this embodiment, the preparation method of the gangue-based adsorption material is basically the same as that of embodiment 1, except that: in step one, the water was 6mL.
In this example, the formaldehyde adsorption effect of the gangue-based adsorbent was tested, and the results are shown in table 4.
Comparative example 1:
this comparative example shows an adsorbent material consisting of a carrier component consisting of 6g bentonite, 3g diatomaceous earth and 1g coal gangue.
In this comparative example, the method for producing the adsorbent was substantially the same as in example 1, except that: in this comparative example, no active ingredient was added in step one.
In this comparative example, the formaldehyde adsorption effect of the adsorbent was tested, and the results are shown in table 4.
Comparative example 2:
this comparative example shows an adsorbent material consisting of a carrier component consisting of 7g bentonite and 3g diatomaceous earth.
In this comparative example, the method for producing the adsorbent was substantially the same as in example 1, except that: in this comparative example, no active ingredient was added in step one.
In this comparative example, the formaldehyde adsorption effect of the adsorbent was tested, and the results are shown in table 4.
Example 3:
this example shows a coal gangue-based adsorbent material consisting of an active component and a carrier component, wherein the active component consists of 0.5g of ethylene urea and 0.5g of glycine; the carrier component consists of 9g of bentonite and 1g of coal gangue.
In this embodiment, the preparation method of the gangue-based adsorption material is basically the same as that of embodiment 1, except that: in step one, the water was 6mL.
In this example, the formaldehyde adsorption effect of the gangue-based adsorbent was tested, and the results are shown in table 4.
Example 4:
this example shows a coal gangue-based adsorbent material consisting of an active component and a carrier component, wherein the active component consists of 0.5g of ethylene urea and 0.5g of L-lysine; the carrier component consists of 5g of bentonite, 3g of kieselguhr and 2g of coal gangue.
In this embodiment, the preparation method of the gangue-based adsorption material is basically the same as that of embodiment 1, except that: in step one, the water was 6mL.
In this example, the formaldehyde adsorption effect of the gangue-based adsorbent was tested, and the results are shown in table 4.
Example 5:
the present example shows a coal gangue-based adsorption material consisting of an active component and a carrier component, wherein the active component consists of 0.5g of ethylene urea and 0.1g of L-glycine; the carrier component consists of 5g of bentonite, 3g of kieselguhr and 2g of coal gangue.
In this embodiment, the preparation method of the gangue-based adsorption material is basically the same as that of embodiment 1, except that: in step one, the water was 6mL.
In this example, the formaldehyde adsorption effect of the gangue-based adsorbent was tested, and the results are shown in table 4.
Example 6:
the embodiment provides a coal gangue-based adsorption material, which consists of an active component and a carrier component, wherein the active component consists of 0.5g of ethylene urea and 0.1g of potassium permanganate; the carrier component consists of 5g of bentonite, 3g of kieselguhr and 2g of coal gangue.
In this embodiment, the preparation method of the gangue-based adsorption material is basically the same as that of embodiment 1, except that: in step one, the water was 6mL.
In this example, the formaldehyde adsorption effect of the gangue-based adsorbent was tested, and the results are shown in table 4.
Example 7:
the present example shows a coal gangue-based adsorption material consisting of an active component and a carrier component, wherein the active component consists of 0.5g of ethylene urea and 0.1g of manganese dioxide; the carrier component consists of 5g of bentonite, 3g of kieselguhr and 2g of coal gangue.
In this embodiment, the preparation method of the gangue-based adsorption material is basically the same as that of embodiment 1, except that: in step one, the water was 6mL.
In this example, the formaldehyde adsorption effect of the gangue-based adsorbent was tested, and the results are shown in table 4.
Example 8:
the embodiment provides a coal gangue-based adsorption material, which consists of an active component and a carrier component, wherein the active component consists of 0.5g of manganese dioxide and 0.1g of potassium permanganate; the carrier component consists of 5g of bentonite, 3g of kieselguhr and 2g of coal gangue.
In this embodiment, the preparation method of the gangue-based adsorption material is basically the same as that of embodiment 1, except that: in step one, the water was 6mL.
In this example, the formaldehyde adsorption effect of the gangue-based adsorbent was tested, and the results are shown in table 4.
Example 9:
the embodiment provides a coal gangue-based adsorption material, which consists of an active component and a carrier component, wherein the active component consists of 0.5g of ethylene urea, 0.1g of manganese dioxide and 0.1g of potassium permanganate; the carrier component consists of 5g of bentonite, 3g of kieselguhr and 2g of coal gangue.
In this embodiment, the preparation method of the gangue-based adsorption material is basically the same as that of embodiment 1, except that: in step one, the water was 6mL.
In this example, the formaldehyde adsorption effect of the gangue-based adsorbent was tested, and the results are shown in table 4.
Example 10:
the embodiment provides a coal gangue-based adsorption material, which consists of an active component and a carrier component, wherein the active component consists of 0.5g of ethylene urea, 0.1g of L-lysine and 0.1g of potassium permanganate; the carrier component consists of 6g of bentonite, 3g of kieselguhr and 1g of coal gangue.
In this example, the preparation method of the gangue-based adsorption material is exactly the same as that of example 1.
Example 11:
this example shows a coal gangue-based adsorbent material consisting of an active component and a carrier component, wherein the active component consists of 0.5g of ethylene urea and 0.5g of glycine; the carrier component consists of 9g of bentonite and 1g of coal gangue.
In this embodiment, the preparation method of the gangue-based adsorption material is basically the same as that of embodiment 1, except that: in step one, the water was 6mL.
Example 12:
the embodiment provides a coal gangue-based adsorption deodorizing material, as shown in fig. 1, wherein the deodorizing components are added into the coal gangue-based adsorption material of the embodiment 1 and uniformly mixed to prepare the coal gangue-based adsorption deodorizing material; the smell removing component is pericarpium Citri Tangerinae. In the embodiment, the mass of the gangue-based adsorption deodorizing material is 10.7g, and the mass of the deodorizing component is 1g.
In this example, the performance test was performed on the deodorizing effect of the gangue-based adsorption deodorizing material, and the results are shown in table 5.
Example 13:
the embodiment provides a coal gangue-based adsorption deodorizing material, as shown in fig. 1, wherein the deodorizing components are added into the coal gangue-based adsorption material of the embodiment 1 and uniformly mixed to prepare the coal gangue-based adsorption deodorizing material; the smell removing component is tea. In the embodiment, the mass of the gangue-based adsorption deodorizing material is 10.7g, and the mass of the deodorizing component is 2g.
In this example, the performance test was performed on the deodorizing effect of the gangue-based adsorption deodorizing material, and the results are shown in table 5.
Example 14:
the embodiment provides a coal gangue-based adsorption deodorizing material, wherein the deodorizing component is added into the coal gangue-based adsorption material of the embodiment 11 and uniformly mixed to prepare the coal gangue-based adsorption deodorizing material; the smell removing component is pericarpium Citri Tangerinae. In the embodiment, the mass of the gangue-based adsorption deodorizing material is 11g, and the mass of the deodorizing component is 1g.
In this example, the performance test was performed on the deodorizing effect of the gangue-based adsorption deodorizing material, and the results are shown in table 5.
Example 15:
the embodiment provides a coal gangue-based adsorption deodorizing material, wherein the deodorizing component is added into the coal gangue-based adsorption material of the embodiment 11 and uniformly mixed to prepare the coal gangue-based adsorption deodorizing material; the smell removing component is tea. In the embodiment, the mass of the gangue-based adsorption deodorizing material is 11g, and the mass of the deodorizing component is 2g.
In this example, the performance test was performed on the deodorizing effect of the gangue-based adsorption deodorizing material, and the results are shown in table 5.
Table 4 results of formaldehyde adsorption effect performance test of examples 1 to 9 and comparative examples 1 and 2
TABLE 5 results of odor removal Effect test of examples 11 to 15
| Example 12 | Example 13 | Example 14 | Example 15 | |
| Detection result | Has no odor and pericarpium Citri Tangerinae smell | Slightly stink | Slightly stink and slightly orange peel flavor | Slightly stink |
From examples 1 to 9 and comparative examples 1 and 2, the following can be concluded:
in examples 1 to 9, the residual formaldehyde concentrations were all below 0.8mg/m 3 Wherein the residual formaldehyde concentration of example 1 and example 2 is 0.02mg/m 3 Is lower than the limit value of 0.10mg/m of formaldehyde concentration in indoor air specified by national sanitation standard 3 The lower the residual formaldehyde concentration, the better the adsorption effect. While the residual formaldehyde concentrations of comparative examples 1 and 2 were each 0.9mg/m or more 3 。
From the above analysis, the adsorption effect of formaldehyde was significantly better for examples 1 to 9 than for comparative examples 1 and 2. In examples 1 to 9, an active component capable of chemically decomposing formaldehyde was further added to the carrier component, and the physical adsorption of formaldehyde by the carrier component was combined, so that the coal gangue-based adsorbent of the present application had a good adsorption effect on formaldehyde, as compared with comparative examples 1 and 2.
From examples 11 to 15, the following can be concluded:
in examples 11 to 15, the gangue-based adsorption deodorizing materials have a good deodorizing effect. In comparison with examples 1 to 9, examples 11 to 15 are also added with a deodorizing component which, in combination with the active component and the carrier component, can exert a good adsorption effect on the odor molecules and thus achieve a good deodorizing effect.
Claims (4)
1. The gangue-based adsorption deodorizing material is characterized by comprising a gangue-based adsorbing material and deodorizing components, wherein the mass ratio of the gangue-based adsorbing material to the deodorizing components is (10.7-11): (1-2);
the odor-removing component is tea leaves or dried orange peel; the gangue-based adsorption material consists of an active component and a carrier component, wherein the mass ratio of the active component to the carrier component is (0.6-1): 10;
the active component consists of ethylene urea, L-lysine and potassium permanganate, wherein the mass ratio of the ethylene urea to the L-lysine to the potassium permanganate is 5:1:1; the carrier component consists of bentonite, diatomite and coal gangue, wherein the mass ratio of the bentonite to the diatomite to the coal gangue is 5:3:2;
or the active component consists of ethylene urea and glycine, wherein the mass ratio of the ethylene urea to the glycine is 1:1; the carrier component consists of bentonite, diatomite and coal gangue, wherein the mass ratio of the bentonite to the diatomite to the coal gangue is 6:3:1.
2. The gangue based adsorption deodorizing material as claimed in claim 1, wherein the preparation method of the gangue based adsorbing material comprises the following steps:
adding water into the active component and uniformly stirring to obtain an active component solution;
step two, adding a carrier component into the active component solution prepared in the step one, and uniformly stirring to prepare a mixture;
and thirdly, impregnating the mixture obtained in the second step for 20-30 h, and curing the impregnated mixture at 80-90 ℃ for 3-5 h to obtain the gangue-based adsorption material.
3. The gangue based adsorption deodorizing material according to claim 2, wherein in the first step, the mass ratio of water to active ingredient is (6-8): (0.6-1).
4. The use of the gangue-based adsorption deodorizing material according to claim 1 as a formaldehyde adsorbing material and an odor removing material for indoor air purification.
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