CN104824024A - Preparation method of multifunctional nano composite material - Google Patents
Preparation method of multifunctional nano composite material Download PDFInfo
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- CN104824024A CN104824024A CN201510243392.9A CN201510243392A CN104824024A CN 104824024 A CN104824024 A CN 104824024A CN 201510243392 A CN201510243392 A CN 201510243392A CN 104824024 A CN104824024 A CN 104824024A
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- multifunctional nanocomposites
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Abstract
The invention relates to a preparation method of a multifunctional nano composite material capable of implementing high-efficiency sterilization and powerfully decomposing harmful organic matters. The nano composite material comprises the following components in percentage by mass: 5-12% of anatase titanium dioxide, 2-4% of nano silver, 1-2% of surfactant, 0.5-1% of stabilizer and 81-91.5% of solvent. The nano composite material has the advantages of high sterilization capacity, long effect, simple construction, low cost and the like, and can thoroughly decompose harmful organic matters.
Description
Technical field
The invention belongs to technical field of function materials, particularly a kind of efficient sterilizing, powerful Nano-composite materials method of decomposing harmful organic substance.
Technical background
The continuous reinforcement of ecological, environmental protective consciousness and the day by day deficient of traditional multifunctional nanocomposites, the research for nano composite material provides social background and ecological significance.In daily life, harmful organic substance and bacterium etc. are seen everywhere, and as harmful organic substances such as meeting emitting formaldehyde, benzene, ammonia such as new furniture, new house finishing, new cars, the places such as kitchen, toilet, public place are the gathering ground of bacterium, fungi.The existence of these harmful organic substances and bacterium, the healthy of people in serious threat.Therefore, research and develop a kind of efficient sterilizing, powerful decomposition harmful organic substance nano composite material is the problem that an existing social effect has again economic implications.This technological invention has following functions and feature: (1) nano-TiO
2photo-catalyst: nano-TiO
2photocatalysis utilizes natural daylight to get final product catalysis, and the harmful organic substances such as powerful decomposing formaldehyde, benzene, ammonia, the speed of decomposing harmful substances and sterilization and effect are the several times of common photocatalyst material.Give full play to the function of high-efficiency antimicrobial, powerful degradable organic pollutant, removing peculiar smell, auto purification; and there is the features such as non-secondary pollution, nonirritant, safety non-toxic; can digital preservation ecological natural environment, be one of green material with DEVELOPMENT PROSPECT most.(2) bactericidal nano-silver: Nano Silver is by damage DNA of bacteria, interruption cell signal, the oxidative damage of active oxygen radical, thalline content leaks, dehydrase inactivation, can have extraordinary suppression and killing action to mould, staphylococcus, Escherichia coli and most of germ, virus, and effect is lasting.The present invention introduces a kind of preparation method of multifunctional nanocomposites, and it has, and sterilizing ability is strong, effect lasting, thoroughly decompose the features such as harmful organic substance.
Summary of the invention
(1) an object of the present invention provides the preparation method of the simple multifunctional nanocomposites of a kind of technique.
(2) object two of the present invention overcome traditional sterilization, sterilised products sterilizing ability weak, the difficulty such as harmful organic substance and bacteria removal can not be decomposed thoroughly.
(3) three of object of the present invention is by nano-TiO
2with Nano Silver compound, obtain that there is the multifunctional nanocomposites that sterilizing ability is strong, effect lasting, thoroughly decompose harmful organic substance.
The present invention takes following technical scheme:
Step one: with analytically pure tetrabutyl titanate (Ti (OC
4h
9)
4) be predecessor, absolute ethyl alcohol is solvent, and acetic acid is chelating agent, adjusts pH value by nitric acid.Concrete preparation process is: by butyl titanate ([CH
3(CH
2)
3o]
4ti) be added drop-wise to vigorous stirring in absolute ethyl alcohol, fully stir, obtain yellow solution, then add acetic acid, nitric acid and deionized water successively to it, continue to stir, finally obtain stable TiO
2colloidal sol.Above-mentioned colloidal sol is carried out annealing in process, and annealing temperature is respectively 450 DEG C, 500 DEG C, 550 DEG C, temperature retention time 5 hours.Then Temperature fall, obtains anatase TiO
2powder sample, by powder sample ball milling 24 hours, the TiO in powder sample
2particle size is 5-25 nm.
The weight part ratio of step 2: according to gellan gum: NaCl=1:9 mixes, and then the mixture mixed is put into the high-shearing dispersion emulsifying machine reactor being placed in ultrasound field, then adds deionized water, be heated to 65
0c, rotating speed is 1100rpm/min, fully stirs and obtains mixed solution, then add deionized water to it, until mixture can be dissolved completely in water after stirring.Add ethylene glycol to above-mentioned mixed solution, fully stir, make mixture even.Triethanolamine is dissolved in 65
0then add in C hot water in above-mentioned mixed solution, continue to stir, make mixture even.Finally, add in mixed solution by silver nitrate and lemon aqueous acid, rotating speed brings up to 3500 rpm/min, stirs 2 hours, obtains Nano silver solution.In Nano silver solution, nano-Ag particles is of a size of 10nm-25nm
Step 3: above-mentioned two kinds of nano materials be distributed in deionized water or 75% alcohol, then add surfactant and stabilizing agent, can obtain that sterilizing ability is strong, effect is lasting, thoroughly decompose the multifunctional nanocomposites of harmful organic substance.
Described multifunctional nanocomposites, it is characterized in that: anatase titanium dioxide mass percent is 5% ~ 12%, Nano Silver mass percent is 2% ~ 4%, and surfactant qualities percentage is 1% ~ 2%, stabilizing agent mass percent is 0.5% ~ 1%, and solvent quality percentage is 81% ~ 91.5%.
Described multifunctional nanocomposites, is characterized in that: described TiO
2particle size is 5nm-25nm.
Described multifunctional nanocomposites, is characterized in that: in described Nano silver solution, nano-Ag particles is of a size of 10nm-25nm.
Described multifunctional nanocomposites, is characterized in that: described solvent is deionized water or 75% alcohol.
Described multifunctional nanocomposites, is characterized in that: described surfactant is that fatty acid sorb is smooth, one or both in polysorbate.
Described multifunctional nanocomposites, is characterized in that: described stabilizing agent is one or both in sodium carboxymethylcellulose, xanthans.
Embodiment
Step one: by 20ml butyl titanate ([CH
3(CH
2)
3o]
4ti) be added drop-wise to vigorous stirring in 40mL absolute ethyl alcohol, stir 30min, obtain yellow solution, then add 4mL acetic acid, 2mL nitric acid and 3mL deionized water to it, continue to stir 2h, finally obtain stable TiO
2colloidal sol.Above-mentioned colloidal sol is carried out annealing in process, and annealing temperature is 500 DEG C, temperature retention time 5 hours.Then Temperature fall, obtains anatase TiO
2powder sample, by powder sample ball milling 24 hours, the TiO in powder sample
2particle size is 8 nm.
The weight part ratio of step 2: according to gellan gum: NaCl=1:9 mixes, and then the mixture mixed is put into the high-shearing dispersion emulsifying machine reactor being placed in ultrasound field, then adds deionized water, be heated to 65
0c, rotating speed is 1100rpm/min, fully stirs and obtains mixed solution, then add deionized water to it, until mixture can be dissolved completely in water after stirring.Add ethylene glycol to above-mentioned mixed solution, fully stir, make mixture even.Triethanolamine is dissolved in 65
0then add in C hot water in above-mentioned mixed solution, continue to stir, make mixture even.Finally, add in mixed solution by silver nitrate and lemon aqueous acid, rotating speed brings up to 3500 rpm/min, stirs 2 hours, can obtain Nano silver solution.
Step 3: get 6g TiO
2and 3g Nano silver solution is distributed in 89g deionized water, stir 1 hour, it is smooth then to add 1.2g fatty acid sorb, stirs 30 minutes, finally adds 0.8g sodium carboxymethylcellulose, fully stir, can obtain the multifunctional nanocomposites of transparent and stable.
Claims (6)
1. the multifunctional nanocomposites described in, it is characterized in that: anatase titanium dioxide mass percent is 5% ~ 12%, Nano Silver mass percent is 2% ~ 4%, and surfactant qualities percentage is 1% ~ 2%, stabilizing agent mass percent is 0.5% ~ 1%, and solvent quality percentage is 81% ~ 91.5%.
2. multifunctional nanocomposites according to claim 1, is characterized in that: described TiO
2particle size is 5nm-25nm.
3. multifunctional nanocomposites according to claim 1, is characterized in that: in described Nano silver solution, nano-Ag particles is of a size of 10nm-25nm.
4. multifunctional nanocomposites according to claim 1, is characterized in that: described solvent is deionized water or 75% alcohol.
5. multifunctional nanocomposites according to claim 1, is characterized in that: described surfactant is that fatty acid sorb is smooth, one or both in polysorbate.
6. multifunctional nanocomposites according to claim 1, is characterized in that: described stabilizing agent is one or both in sodium carboxymethylcellulose, xanthans.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510243392.9A CN104824024A (en) | 2015-05-14 | 2015-05-14 | Preparation method of multifunctional nano composite material |
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| CN201510243392.9A CN104824024A (en) | 2015-05-14 | 2015-05-14 | Preparation method of multifunctional nano composite material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634362A (en) * | 2016-12-30 | 2017-05-10 | 苏州律点信息科技有限公司 | Building coating capable of adsorbing formaldehyde |
| CN106818866A (en) * | 2016-12-13 | 2017-06-13 | 新昌县奥而特农业科技有限公司 | The bactericide of composite nanometer particle and its preparation and application |
| CN111357767A (en) * | 2020-04-03 | 2020-07-03 | 祁海强 | Preparation method of high-dispersion anti-discoloration nano-silver antibacterial agent material |
| CN113951277A (en) * | 2020-02-24 | 2022-01-21 | 巫远程 | Efficient composite nano sterilizing and virus killing solution and application |
-
2015
- 2015-05-14 CN CN201510243392.9A patent/CN104824024A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106818866A (en) * | 2016-12-13 | 2017-06-13 | 新昌县奥而特农业科技有限公司 | The bactericide of composite nanometer particle and its preparation and application |
| CN106634362A (en) * | 2016-12-30 | 2017-05-10 | 苏州律点信息科技有限公司 | Building coating capable of adsorbing formaldehyde |
| CN113951277A (en) * | 2020-02-24 | 2022-01-21 | 巫远程 | Efficient composite nano sterilizing and virus killing solution and application |
| CN111357767A (en) * | 2020-04-03 | 2020-07-03 | 祁海强 | Preparation method of high-dispersion anti-discoloration nano-silver antibacterial agent material |
| CN111357767B (en) * | 2020-04-03 | 2021-02-23 | 李建勋 | Preparation method of high-dispersion anti-discoloration nano-silver antibacterial agent material |
| CN112438274A (en) * | 2020-04-03 | 2021-03-05 | 祁海强 | Preparation method of high-dispersion anti-discoloration nano-silver antibacterial agent material |
| CN112616853A (en) * | 2020-04-03 | 2021-04-09 | 祁海强 | Preparation method of high-dispersion anti-discoloration nano-silver antibacterial agent material |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150812 |
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| WD01 | Invention patent application deemed withdrawn after publication |