CN114570345A - Based on nanometer TiO2Preparation method of basic VOCs catalytic purification material - Google Patents

Based on nanometer TiO2Preparation method of basic VOCs catalytic purification material Download PDF

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CN114570345A
CN114570345A CN202111336077.2A CN202111336077A CN114570345A CN 114570345 A CN114570345 A CN 114570345A CN 202111336077 A CN202111336077 A CN 202111336077A CN 114570345 A CN114570345 A CN 114570345A
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catalytic purification
purification material
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孙宏放
曹文华
王廷意
邢钰婷
臧日强
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Heu Qingdao Ship Science And Technology Co ltd
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Abstract

The invention discloses a nano TiO-based material2A preparation method of a basic VOCs catalytic purification material based on nano TiO2The basic VOCs catalytic purification material is prepared from the following raw materials in parts by mass: 4-7 parts of resorcinol, 2-8 parts of activated carbon powder, 3-8 parts of nano photocatalyst, 8-15 parts of nano alumina powder, 4-8 parts of zinc powder,5-9 parts of magnesium powder, 0.6-1 part of anhydrous sodium carbonate, 4-9 parts of polyvinyl alcohol, 23-50 parts of deionized water and 20-30 parts of nano titanium dioxide powder. The irradiation technology is non-toxic, the reaction condition is mild, no cross-linking agent, initiator and any substance toxic to human bodies are added in the reaction process, and secondary pollution can be effectively avoided.

Description

Based on nanometer TiO2Preparation method of basic VOCs catalytic purification material
Technical Field
The invention relates to the field of catalysts, in particular to a catalyst based on nano TiO2A preparation method of a basic VOCs catalytic purification material.
Background
Volatile Organic Compounds, commonly referred to as VOCs, are the first letter of the three Volatile Organic Compounds, and total Volatile Organic Compounds are sometimes also referred to as TVOC. VOCs (volatile organic compounds) are, by definition of the World Health Organization (WHO), various organic compounds having a boiling point of 50 ℃ to 260 ℃ at ambient temperature. In China, VOCs refer to organic compounds with saturated vapor pressure of more than 70Pa at normal temperature and boiling point of below 260 ℃ at normal pressure, or all organic compounds with vapor pressure of more than or equal to 10Pa and volatility at 20 ℃.
The existing catalytic purification material has weak adsorption capacity and cannot float VOCs with air concentration at the bottom, so the invention provides a preparation process of the VOCs catalytic purification material.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a nano TiO-based material2The preparation method of the basic VOCs catalytic purification material is used for overcoming the technical problems in the prior related art.
Therefore, the invention adopts the following specific technical scheme:
according to one aspect of the present invention, there is provided a nano TiO based material2A preparation method of a basic VOCs catalytic purification material.
The nano TiO base2The basic VOCs catalytic purification material is prepared from the following raw materials in parts by mass:
4-7 parts of resorcinol, 2-8 parts of activated carbon powder, 3-8 parts of nano photocatalyst, 8-15 parts of nano alumina powder, 4-8 parts of zinc powder, 5-9 parts of magnesium powder, 0.6-1 part of anhydrous sodium carbonate, 4-9 parts of polyvinyl alcohol, 23-50 parts of deionized water and 20-30 parts of nano titanium dioxide powder.
According to another aspect of the present invention, there is provided a nano TiO based material2A preparation method of a basic VOCs catalytic purification material.
The nano TiO base2The basic VOCs catalytic purification material comprises the following steps:
putting the nano photocatalyst, the activated carbon powder, the zinc powder, the magnesium powder, the nano alumina powder, the anhydrous sodium carbonate and the nano titanium dioxide powder in parts by weight into a ball mill filled with nitrogen for grinding, and then grinding for later use to obtain mixed powder A;
putting the mixed powder A into a smelting furnace, heating and melting at high temperature, keeping the melting temperature unchanged, continuously smelting for 2-3 h, and mixing and stirring at the rotating speed of 250-370 r/min in the smelting process to obtain mixed liquid B;
and (3) adding a solution formed by mixing resorcinol, polyvinyl alcohol and deionized water into the mixed liquid B, aging to obtain a mixed liquid C, drying the mixed liquid C to obtain powder, and carrying out heat treatment on the powder to obtain the VOCs catalytic purification material.
Further, the drying temperature of the powder obtained by drying the mixed liquid C is 60-120 ℃, and the aging time of the mixed liquid C obtained after aging is 0.1-10 h.
According to another aspect of the present invention, there is provided a nano TiO-based material2A preparation method of a basic VOCs catalytic purification material,
the preparation method of the nano titanium dioxide powder comprises the following steps:
irradiating the nano titanium dioxide under electron beams, and then putting the irradiated nano titanium dioxide into a ball mill to be ground into powder;
then putting the nano titanium dioxide powder into a three-neck flask containing the mixed solution under the protection of nitrogen, introducing N2, and stirring for 0.5h to obtain an obtained sample;
washing the sample with alcohol, washing with water, drying in vacuum drying ovenSoxhlet extraction at 40 deg.c for 8 hr and vacuum drying to obtain nanometer TiO material2A base powder.
Further, the electron beam energy is 2MeV, the radiation dose is 13kGy, and the dose rate is 5 kGy/pass.
Further, the mixed solution is prepared from the following raw materials in parts by weight:
7 parts of dimethylaminoethyl methacrylate, 0.7 part of Tween 80 and 0.2 part of sodium dihydrogen phosphate solution, wherein the drying temperature of the vacuum drying oven is 75 ℃, and the drying time is 24 hours.
The beneficial effects of the invention are as follows: the irradiation technology is non-toxic, the reaction condition is mild, and no cross-linking agent, initiator or any substance toxic to human bodies is added in the reaction process, so that secondary pollution can be effectively avoided; after standing in the solution formed by mixing resorcinol, polyvinyl alcohol and deionized water, the adsorption effect of the material is improved, and the material also has a good adsorption effect in air with low concentration of VOCs, and is suitable for popularization and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 shows a nano TiO-based material according to an embodiment of the present invention2A flow chart of a preparation method of the basic VOCs catalytic purification material;
FIG. 2 shows a nano TiO-based material according to an embodiment of the present invention2A flow chart of nano titanium dioxide powder of a preparation method of the basic VOCs catalytic purification material.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to an embodiment of the present invention, there is provided a nano TiO based optical fiber2A preparation method of a basic VOCs catalytic purification material.
The nano TiO base2The basic VOCs catalytic purification material is prepared from the following raw materials in parts by mass:
4-7 parts of resorcinol, 2-8 parts of activated carbon powder, 3-8 parts of nano photocatalyst, 8-15 parts of nano alumina powder, 4-8 parts of zinc powder, 5-9 parts of magnesium powder, 0.6-1 part of anhydrous sodium carbonate, 4-9 parts of polyvinyl alcohol, 23-50 parts of deionized water and 20-30 parts of nano titanium dioxide powder.
In order to clearly understand the technical scheme of the invention, the technical scheme of the invention is described in detail through specific examples.
Example one
Based on nanometer TiO2The preparation method of the basic VOCs catalytic purification material comprises the following steps of:
4-7 parts of resorcinol, 2-8 parts of activated carbon powder, 3-8 parts of nano photocatalyst, 8-15 parts of nano alumina powder, 4-8 parts of zinc powder, 5-9 parts of magnesium powder, 0.6-1 part of anhydrous sodium carbonate, 4-9 parts of polyvinyl alcohol, 23-50 parts of deionized water and 20-30 parts of nano titanium dioxide powder.
The nano TiO base2The basic VOCs catalytic purification material comprises the following steps:
putting the nano photocatalyst, the activated carbon powder, the zinc powder, the magnesium powder, the nano alumina powder, the anhydrous sodium carbonate and the nano titanium dioxide powder in parts by weight into a ball mill filled with nitrogen for grinding, and then grinding for later use to obtain mixed powder A;
putting the mixed powder A into a smelting furnace, heating and melting at high temperature, keeping the melting temperature unchanged, continuously smelting for 2-3 h, and mixing and stirring at the rotating speed of 250-370 r/min in the smelting process to obtain mixed liquid B;
and (3) adding a solution formed by mixing resorcinol, polyvinyl alcohol and deionized water into the mixed liquid B, aging to obtain a mixed liquid C, drying the mixed liquid C to obtain powder, and carrying out heat treatment on the powder to obtain the VOCs catalytic purification material.
Further, the drying temperature of the powder obtained by drying the mixed liquid C is 60-120 ℃, and the aging time of the mixed liquid C obtained after aging is 0.1-10 h.
Example two
For the convenience of understanding the above technical solution of the present invention, the following detailed description is made on the flow of the above solution of the present invention with reference to the accompanying drawings, and specifically is as follows:
according to the embodiment of the invention, the invention also provides a nano TiO-based material2A preparation method of a basic VOCs catalytic purification material.
As shown in FIG. 1, in the actual production process, the nano TiO-based material2The preparation of the basic VOCs catalytic purification material comprises the following steps:
step S101, putting the nano photocatalyst, the activated carbon powder, the zinc powder, the magnesium powder, the nano alumina powder, the anhydrous sodium carbonate and the nano titanium dioxide powder in parts by weight into a ball mill filled with nitrogen for grinding, and then, grinding for later use to obtain mixed powder A;
step S103, putting the mixed powder A into a smelting furnace, heating and melting at high temperature, keeping the melting temperature unchanged, continuing smelting for 2-3 hours, and mixing and stirring at the rotating speed of 250-370 r/min in the smelting process to obtain mixed liquid B;
and S105, putting the mixed powder A into a smelting furnace, heating and melting at high temperature, keeping the melting temperature unchanged, continuing smelting for 2-3 hours, and mixing and stirring at the rotating speed of 250-370 r/min in the smelting process to obtain mixed liquid B.
In one embodiment, the drying temperature of the powder obtained by drying the mixed liquid C is 60-120 ℃, and the aging time of the mixed liquid C obtained after aging is 0.1-10 h.
As shown in fig. 2, in the actual production processThe embodiment of the invention also provides a nano TiO-based material2A preparation method of a basic VOCs catalytic purification material,
the brewing of the nano titanium dioxide powder comprises the following steps;
step S201, irradiating the nano titanium dioxide under electron beams, and then putting the irradiated nano titanium dioxide into a ball mill to be ground into powder;
step S203, putting the nano titanium dioxide powder into a three-neck flask containing the mixed solution under the protection of nitrogen, introducing N2, and stirring for 0.5h to obtain an obtained sample;
and S205, washing the sample with alcohol, washing with water, drying in a vacuum drying oven, performing Soxhlet extraction at 40 ℃ for 8 hours, and performing vacuum drying again to obtain the nano TiO 2-based powder.
In one embodiment, the electron beam energy is 2MeV, the radiation dose is 13kGy, and the dose rate is 5 kGy/pass.
In one embodiment, the mixed solution is prepared from the following raw materials in parts by weight:
7 parts of dimethylaminoethyl methacrylate, 0.7 part of Tween 80 and 0.2 part of sodium dihydrogen phosphate solution, wherein the drying temperature of the vacuum drying oven is 75 ℃, and the drying time is 24h
In conclusion, by means of the technical scheme, the irradiation technology is non-toxic, the reaction condition is mild, and no cross-linking agent, initiator or any substance toxic to human bodies is added in the reaction process, so that secondary pollution can be effectively avoided; after standing in the solution formed by mixing resorcinol, polyvinyl alcohol and deionized water, the adsorption effect of the material is improved, and the material also has a good adsorption effect in air with low concentration of VOCs, and is suitable for popularization and use.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. Based on nanometer TiO2The preparation method of the basic VOCs catalytic purification material is characterized in that the material is based on nano TiO2The basic VOCs catalytic purification material is prepared from the following raw materials:
4-7 parts of resorcinol, 2-8 parts of activated carbon powder, 3-8 parts of nano photocatalyst, 8-15 parts of nano alumina powder, 4-8 parts of zinc powder, 5-9 parts of magnesium powder, 0.6-1 part of anhydrous sodium carbonate, 4-9 parts of polyvinyl alcohol, 23-50 parts of deionized water and 20-30 parts of nano titanium dioxide powder.
2. Based on nanometer TiO2The preparation method of the basic VOCs catalytic purification material is characterized in that the preparation method is used for the nano TiO 2-based VOCs catalytic purification material of claim 1, and comprises the following steps:
putting the nano photocatalyst, the activated carbon powder, the zinc powder, the magnesium powder, the nano alumina powder, the anhydrous sodium carbonate and the nano titanium dioxide powder in parts by weight into a ball mill filled with nitrogen for grinding, and then grinding for later use to obtain mixed powder A;
putting the mixed powder A into a smelting furnace, heating and melting at high temperature, keeping the melting temperature unchanged, continuously smelting for 2-3 h, and mixing and stirring at the rotating speed of 250-370 r/min in the smelting process to obtain mixed liquid B;
and (3) adding a solution formed by mixing resorcinol, polyvinyl alcohol and deionized water into the mixed liquid B, aging to obtain a mixed liquid C, drying the mixed liquid C to obtain powder, and carrying out heat treatment on the powder to obtain the VOCs catalytic purification material.
3. The method for preparing a nano TiO 2-based VOCs catalytic purification material as claimed in claim 2, wherein the drying temperature of the powder obtained by drying the mixed liquid C is 60-120 ℃, and the aging time of the mixed liquid C obtained after aging is 0.1-10 h.
4. The nano TiO-based material of claim 32The preparation method of the basic VOCs catalytic purification material is characterized in that the nano titanium dioxide powderThe preparation method comprises the following steps:
irradiating the nano titanium dioxide under electron beams, and then putting the irradiated nano titanium dioxide into a ball mill to be ground into powder;
then putting the nano titanium dioxide powder into a three-neck flask containing the mixed solution under the protection of nitrogen, introducing N2, and stirring for 0.5h to obtain an obtained sample;
washing the sample with alcohol, washing with water, drying in a vacuum drying oven, Soxhlet extracting at 40 deg.C for 8 hr, and vacuum drying again to obtain nanometer TiO2A base powder.
5. The nano TiO-based material of claim 32The preparation method of the basic VOCs catalytic purification material is characterized in that the energy of the electron beam is 2MeV, the radiation dose is 13kGy, and the dose rate is 5 kGy/pass.
6. The nano TiO-based material of claim 22The preparation method of the basic VOCs catalytic purification material is characterized in that the mixed solution is prepared from the following raw materials in parts by mass:
7 parts of dimethylaminoethyl methacrylate, 0.7 part of Tween 80 and 0.2 part of sodium dihydrogen phosphate solution, wherein the drying temperature of the vacuum drying oven is 75 ℃, and the drying time is 24 hours.
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