CN114456622B - Coating with formaldehyde purification and antibacterial functions - Google Patents
Coating with formaldehyde purification and antibacterial functions Download PDFInfo
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- CN114456622B CN114456622B CN202210131758.3A CN202210131758A CN114456622B CN 114456622 B CN114456622 B CN 114456622B CN 202210131758 A CN202210131758 A CN 202210131758A CN 114456622 B CN114456622 B CN 114456622B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
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Abstract
The invention relates to a coating with formaldehyde purification and antibacterial functions, which is characterized by comprising Bi 4 Ti 3 O 12 ‑CoMo 2 S 4 The preparation process of the photocatalytic material comprises the following steps: (1) dissolving bismuth nitrate and tetrabutyl titanate with a certain molar ratio in glycerol, and ultrasonically mixing uniformly; (2) adding urea, ethanolamine and polyethylene glycol into the solution, and continuously and uniformly mixing by ultrasonic waves; (3) transferring the mixed solution obtained in the step (2) into a high-pressure reaction kettle, and carrying out solvothermal reaction for 10-20h at the temperature of 180- 4 Ti 3 O 12 (ii) a (4) Linear Bi 4 Ti 3 O 12 Dissolving in deionized water, adding cobalt nitrate and sodium molybdate, mixing uniformly, adding thiourea and polyvinylpyrrolidone, stirring and heating for reaction; (5) calcining the product in protective atmosphere to obtain linear Bi 4 Ti 3 O 12 Coated CoMo 2 S 4 The core-shell structure photocatalytic material.
Description
Technical Field
The invention belongs to the technical field of building coatings.
Background
Along with the continuous improvement of the life quality of people, the use frequency of the coating is more and more, and the gradual release of formaldehyde in building materials and furniture can cause respiratory dysfunction, hepatotoxic lesion and the like, thereby seriously threatening the health of human bodies. In addition, because the wall coating contains organic or mineral components, bacteria and mould are easy to breed, and the indoor appearance is influenced while the health of human bodies is harmed. The coating is concerned as an important component of home decoration, and has important practical significance for endowing the home decoration with functions of aldehyde removal, antibiosis and the like.
CN105694572A discloses an antibacterial enhanced water-based paint additive, which comprises the following components in percentage by mass: 68.9-89.88% of deionized water, 5-15% of needle-shaped inorganic material whiskers, 5-15% of nano zinc oxide antibacterial agent, 0.01-0.05% of water-based dispersing agent, 0.01-0.05% of water-based coupling agent and 0.1-1% of anti-settling wetting agent. The antibacterial enhanced water-based paint additive is added to a water-based paint product in a proportion of 5-15%, so that the antibacterial property, the film-forming property, the scratch-resistant property and the anti-settling property of the product can achieve good effects. CN112080178A discloses a visible light response anti-fouling antibacterial coating, a coating and a preparation method thereof. The components of the coating comprise a photocatalytic material, a film forming agent and a hydrophilic solvent. The coating is an anti-fouling and antibacterial coating formed by coating the coating on the external surface of an object and curing, the photocatalytic material is a nano-structured bismuth sulfide/carbon-based composite material prepared by a one-step hydrothermal method, and the nano-structured bismuth sulfide/carbon-based composite material, a film-forming agent and a hydrophilic solvent are uniformly mixed to prepare the visible light response anti-fouling and antibacterial coating.
Disclosure of Invention
The invention aims to provide a coating and a preparation method thereof, which endow the coating with good functions of formaldehyde removal, antibacterial property and the like.
The coating with formaldehyde purifying and antibacterial functions is characterized by comprising Bi 4 Ti 3 O 12 -CoMo 2 S 4 The preparation process of the photocatalytic material comprises the following steps:
(1) dissolving bismuth nitrate and tetrabutyl titanate with a certain molar ratio in glycerol, and ultrasonically mixing uniformly;
(2) adding urea, ethanolamine and polyethylene glycol into the solution, and continuously and uniformly mixing by ultrasonic waves;
(3) transferring the mixed solution obtained in the step (2) into a high-pressure reaction kettle, and carrying out solvothermal reaction for 10-20h at the temperature of 180- 4 Ti 3 O 12 ；
(4) Linear Bi 4 Ti 3 O 12 Dissolving in deionized water, adding cobalt nitrate and sodium molybdate, mixing uniformly, adding thiourea and polyvinylpyrrolidone, stirring and heating for reaction;
(5) calcining the product in protective atmosphere to obtain linear Bi 4 Ti 3 O 12 Coated CoMo 2 S 4 The core-shell structure photocatalytic material.
Preferably, the molar ratio of bismuth nitrate to tetrabutyl titanate, urea and ethanolamine is 4: 3: (2-3): (2-3);
preferably, the adding ratio of the bismuth nitrate to the polyethylene glycol is (4-20) mmol: (12-20) mg;
preferably, the molecular weight of the polyethylene glycol is 500-700;
preferably, the heating temperature in the step (4) is 80-100 ℃, and the heating time is 10-24 h;
preferably, the calcination condition in step (5) is 300-380 ℃ for 1-3 h.
Preferably, the molar ratio of the cobalt nitrate to the sodium molybdate to the thiourea is 1: 2: 4.
preferably, the ratio of the cobalt nitrate to the polyvinylpyrrolidone is (3-15) mmol: (10-30 mg).
The technical effects are as follows:
the method adopts solvothermal reaction to obtain Bi with special morphology through regulating and controlling raw materials 4 Ti 3 O 12 Then loading the outer surface thereof with CoMo 2 S 4 The composite material has a large specific surface area, exposed active sites are increased, and the technical problem that conventional coating powder is easy to agglomerate is effectively solved; in addition, a heterojunction is easily formed in the heat treatment process, so that the effective separation and migration of photogenerated electron holes are promoted, the photocatalytic efficiency is effectively improved, and the antibacterial and aldehyde-removing performances are excellent.
Drawings
FIG. 1 is an SEM image of a composite material of example 1 as prepared herein.
Detailed Description
Example 1
(1) Dissolving 40mmol of bismuth nitrate and 30mmol of tetrabutyl titanate in 80ml of glycerol, and uniformly mixing by ultrasonic waves;
(2) adding 20mmol of urea, 30mmol of ethanolamine and polyethylene glycol into the solution, wherein the adding ratio of bismuth nitrate to polyethylene glycol is 40 mmol: 120 mg; continuously carrying out ultrasonic mixing uniformly;
(3) transferring the mixed solution obtained in the step (2) into a high-pressure reaction kettle, and carrying out solvothermal reaction for 10 hours at 180 ℃ to obtain linear Bi 4 Ti 3 O 12 ；
(4) Linear Bi 4 Ti 3 O 12 Dissolving in 30ml deionized water, adding 5mmol cobalt nitrate and 10mmol sodium molybdate, mixing, adding 20mol thiourea and 15mg polyvinylpyrrolidoneHeating while stirring for reaction; the reaction temperature is 90 ℃, and the reaction time is 12 h;
(5) calcining the product at 300 ℃ for 1h under Ar atmosphere to obtain linear Bi 4 Ti 3 O 12 Coated CoMo 2 S 4 The core-shell structure photocatalytic material.
Example 2
(1) Dissolving 40mmol of bismuth nitrate and 30mmol of tetrabutyl titanate in 80ml of glycerol, and uniformly mixing by ultrasonic waves;
(2) adding 25mmol of urea, 25mmol of ethanolamine and polyethylene glycol into the solution, wherein the adding ratio of bismuth nitrate to polyethylene glycol is 40 mmol: 130 mg; continuously carrying out ultrasonic mixing uniformly;
(3) transferring the mixed solution obtained in the step (2) into a high-pressure reaction kettle, and carrying out solvothermal reaction for 10 hours at 180 ℃ to obtain linear Bi 4 Ti 3 O 12 ；
(4) Linear Bi 4 Ti 3 O 12 Dissolving in 30ml of deionized water, then adding 4mmol of cobalt nitrate and 8mmol of sodium molybdate, mixing uniformly, and then continuously adding 16mol of thiourea and 18mg of polyvinylpyrrolidone, stirring and heating for reaction; the reaction temperature is 90 ℃, and the reaction time is 12 h;
(5) calcining the product at 300 ℃ for 1h under Ar atmosphere to obtain linear Bi 4 Ti 3 O 12 Coated CoMo 2 S 4 The core-shell structure photocatalytic material.
Comparative example 1
(1) Dissolving 40mmol of bismuth nitrate and 30mmol of tetrabutyl titanate in 80ml of glycerol, and uniformly mixing by ultrasonic waves;
(2) adding 25mmol of urea, 25mmol of ethanolamine and polyethylene glycol into the solution, wherein the adding ratio of bismuth nitrate to polyethylene glycol is 40 mmol: 130 mg; continuously carrying out ultrasonic mixing uniformly;
(3) transferring the mixed solution obtained in the step (2) into a high-pressure reaction kettle, carrying out solvothermal reaction for 10 hours at 180 ℃, calcining the product for 1 hour at 300 ℃ under Ar atmosphere to obtain linear Bi 4 Ti 3 O 12 。
Comparative example 2
(1) Adding 4mmol of cobalt nitrate and 8mmol of sodium molybdate into 30ml of deionized water, uniformly mixing, and then continuously adding 16mol of thiourea and 18mg of polyvinylpyrrolidone, stirring and heating for reaction; the reaction temperature is 90 ℃, and the reaction time is 12 h;
(2) the product was calcined at 300 ℃ for 1h under an Ar atmosphere.
Testing the antibacterial rate of the photocatalytic material prepared in the examples 1-2 and the comparative examples 1-2 to staphylococcus aureus by a GB/T21867-2008 antibacterial assay method; the formaldehyde purification rate was tested according to JC/T1075-2010 (test time 48 h).
| Purification rate of formaldehyde | Rate of inhibition of bacteria | |
| Example 1 | 94.2％ | 99.9％ |
| Example 2 | 92.9％ | 99.9％ |
| Comparative example 1 | 84.1％ | 92.1％ |
| Comparative example 2 | 80.5％ | 93.3％ |
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (7)
1. The coating with formaldehyde purifying and antibacterial functions is characterized by comprising Bi 4 Ti 3 O 12 -CoMo 2 S 4 The preparation process of the photocatalytic material comprises the following steps:
(1) dissolving bismuth nitrate and tetrabutyl titanate with a certain molar ratio in glycerol, and ultrasonically mixing uniformly;
(2) adding urea, ethanolamine and polyethylene glycol into the solution, and continuously and uniformly mixing by ultrasonic waves;
(3) transferring the mixed solution obtained in the step (2) into a high-pressure reaction kettle, and carrying out solvothermal reaction for 10-20h at the temperature of 180- 4 Ti 3 O 12 ；
(4) Linear Bi 4 Ti 3 O 12 Dissolving in deionized water, adding cobalt nitrate and sodium molybdate, mixing uniformly, adding thiourea and polyvinylpyrrolidone, stirring and heating for reaction;
(5) calcining the product in a protective atmosphere to obtain linear Bi 4 Ti 3 O 12 Coated CoMo 2 S 4 The core-shell structure photocatalytic material.
2. The coating with formaldehyde-purifying and antibacterial functions as claimed in claim 1, wherein the molar ratio of bismuth nitrate to tetrabutyl titanate, urea to ethanolamine is 4: 3: (2-3): (2-3).
3. The coating with formaldehyde-purifying and antibacterial functions as claimed in claim 1, wherein the addition ratio of bismuth nitrate to polyethylene glycol is (4-20) mmol: (12-20) mg.
4. The coating with formaldehyde-purifying and antibacterial functions as claimed in claim 1, wherein the heating temperature in step (4) is 80-100 ℃, and the heating time is 10-24 h.
5. The coating with formaldehyde-purifying and antibacterial functions as claimed in claim 1, wherein the calcination condition in step (5) is 300-380 ℃ for 1-3 h.
6. The coating with formaldehyde-purifying and antibacterial functions as claimed in claim 1, wherein the molar ratio of cobalt nitrate to sodium molybdate to thiourea is 1: 2: 4.
7. the coating with formaldehyde-purifying and antibacterial functions as claimed in claim 1, wherein the ratio of cobalt nitrate to polyvinylpyrrolidone is (3-15) mmol: (10-30 mg).
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| CN202210131758.3A CN114456622B (en) | 2022-02-14 | 2022-02-14 | Coating with formaldehyde purification and antibacterial functions |
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| CN202210131758.3A CN114456622B (en) | 2022-02-14 | 2022-02-14 | Coating with formaldehyde purification and antibacterial functions |
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| CN114456622A CN114456622A (en) | 2022-05-10 |
| CN114456622B true CN114456622B (en) | 2022-09-23 |
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| CN115717002A (en) * | 2022-11-24 | 2023-02-28 | 河南七彩异涂新材料科技有限公司 | Coating with formaldehyde purifying and antibacterial and mildew-proof functions and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104069848A (en) * | 2014-07-06 | 2014-10-01 | 南京师范大学 | Method for preparing pure phase bismuth titanate and titanium oxide composite material by using alcohol heat method |
| CN105753070A (en) * | 2016-02-25 | 2016-07-13 | 华侨大学 | Controllable preparation method of Co-Mo-S (cobalt-molybdenum-sulfur) ternary metal sulfide |
| CN108620057A (en) * | 2018-05-17 | 2018-10-09 | 陕西科技大学 | A kind of method of electrostatic spinning growth Bi2Ti2O7The preparation method of nano wire |
| CN110391089A (en) * | 2019-08-27 | 2019-10-29 | 信阳学院 | A kind of MoS2@CoS2The preparation method of composite material |
| CN113578309A (en) * | 2021-08-20 | 2021-11-02 | 合肥学院 | High-efficiency photocatalyst Bi4Ti3O12Preparation method of (1) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645965B (en) * | 2015-03-18 | 2017-10-27 | 重庆文理学院 | One kind is used for light-catalysed bismuth titanium oxide nano-material and preparation method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104069848A (en) * | 2014-07-06 | 2014-10-01 | 南京师范大学 | Method for preparing pure phase bismuth titanate and titanium oxide composite material by using alcohol heat method |
| CN105753070A (en) * | 2016-02-25 | 2016-07-13 | 华侨大学 | Controllable preparation method of Co-Mo-S (cobalt-molybdenum-sulfur) ternary metal sulfide |
| CN108620057A (en) * | 2018-05-17 | 2018-10-09 | 陕西科技大学 | A kind of method of electrostatic spinning growth Bi2Ti2O7The preparation method of nano wire |
| CN110391089A (en) * | 2019-08-27 | 2019-10-29 | 信阳学院 | A kind of MoS2@CoS2The preparation method of composite material |
| CN113578309A (en) * | 2021-08-20 | 2021-11-02 | 合肥学院 | High-efficiency photocatalyst Bi4Ti3O12Preparation method of (1) |
Non-Patent Citations (1)
| Title |
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| 铋掺杂TiO_2光催化剂在水性涂料中催化降解甲醛的研究;王东等;《广州化工》;20180430;第46卷(第07期);第51-53和59页 * |
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Effective date of registration: 20220829 Address after: No. 36, Zhaoyu Street, Huitong Industrial Park, Jinzhong Development Zone, Shanxi Demonstration Zone, Jinzhong City, Shanxi Province, 030600 Applicant after: SHANXI LIANGLONG PAINT Co.,Ltd. Address before: 273400 Linyi City, Shandong Province, Feixian County Industrial Park Applicant before: Feixian sanding Engineering Technology Center |
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