CN106172493A - A kind of nano-photo catalytic antibacterial and preparation method thereof - Google Patents
A kind of nano-photo catalytic antibacterial and preparation method thereof Download PDFInfo
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- CN106172493A CN106172493A CN201610608299.8A CN201610608299A CN106172493A CN 106172493 A CN106172493 A CN 106172493A CN 201610608299 A CN201610608299 A CN 201610608299A CN 106172493 A CN106172493 A CN 106172493A
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 61
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 57
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims abstract description 32
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 17
- 235000005074 zinc chloride Nutrition 0.000 claims abstract description 16
- 239000011592 zinc chloride Substances 0.000 claims abstract description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 22
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 239000002068 microbial inoculum Substances 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 11
- 230000003115 biocidal effect Effects 0.000 description 10
- 239000004408 titanium dioxide Substances 0.000 description 10
- 235000012239 silicon dioxide Nutrition 0.000 description 9
- 244000063299 Bacillus subtilis Species 0.000 description 8
- 235000014469 Bacillus subtilis Nutrition 0.000 description 8
- 241000191967 Staphylococcus aureus Species 0.000 description 8
- 241000588724 Escherichia coli Species 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000003242 anti bacterial agent Substances 0.000 description 5
- 239000011941 photocatalyst Substances 0.000 description 5
- 241000193830 Bacillus <bacterium> Species 0.000 description 4
- 241000194107 Bacillus megaterium Species 0.000 description 4
- -1 hydroxyl radical free radical Chemical class 0.000 description 4
- 238000007146 photocatalysis Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002070 germicidal effect Effects 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000005923 long-lasting effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001868 water Inorganic materials 0.000 description 2
- HGWOWDFNMKCVLG-UHFFFAOYSA-N [O--].[O--].[Ti+4].[Ti+4] Chemical compound [O--].[O--].[Ti+4].[Ti+4] HGWOWDFNMKCVLG-UHFFFAOYSA-N 0.000 description 1
- 230000016571 aggressive behavior Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 210000002429 large intestine Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
-
- B01J35/39—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Abstract
A kind of nano-photo catalytic antibacterial and preparation method thereof.Described nano-photo catalytic antibacterial contains following component by mass percentage: nano titanium oxide 40 80%, nano silicon 10 50%, zinc chloride 3 10%.The antibacterial of the present invention is the most easy to change, and has taken into account quick-acting and long-acting antibacterial effect and have relatively low cost simultaneously.
Description
Technical field
The invention belongs to antibacterial field, particularly relate to a kind of nano-photo catalytic antibacterial and preparation method thereof.
Background technology
Photocatalysis (or being photocatalyst) antibacterial is to utilize N-type semiconductor material, such as TiO2、ZnO、Fe2O3Etc. can be
With the OH adsorbed on its surface under the catalytic action of light-Or H2The reaction of O molecule generates hydroxyl radical free radical (i.e. OH), utilizes OH
The strong oxidizing property being had produces suppression to microorganism and kills effect.Conventional photocatalysis antibacterial agent is TiO2Photocatalysis antibacterial
Agent.
TiO2Deng oxide semiconductor, its photocatalysis, can be applicable to utilize water to produce hydrogen, oxygen, water processes, deodorization,
Deodorize, oxidation remove the atmosphere pollutions etc. such as NOx, are a kind of Mobyneb antibacterial.But when not light irradiates, no
Generation antibacterial effect, i.e. oxidation photocatalyst are in order to produce active oxygen, and illumination is requisite.Its main anti-sterilization machine
Reason is TiO2Produced electron hole pair after illumination, and with OH-and O of its surface adsorption2Effect generates hydroxyl radical free radical and surpasses
Oxide anion free radical O2 -, both free radicals are the most active, and when running into antibacterial, direct aggression antibacterial is thin
Born of the same parents, extract organic H atom or attack its unsaturated bond, cause bacterioprotein variation and lipidolysis, kill carefully with this
Bacterium also is allowed to decompose, sterilized, mildew-resistant, the effect of deodorization.
Common photocatalyst antibacterial agent has wide spectrum, durable, safe feature, obtains wide in terms of textile, hygienic article
General application, but nano-TiO2Can only absorb excitation wavelength is that 385nm (ultraviolet wavelength) light below reacts.Thus, commonly
Photocatalyst antibacterial agent must irradiate competence exertion antibacterial action at ultraviolet, and this makes the application of photocatalyst antibacterial agent by certain
Limit.In order to overcome above-mentioned deficiency, document is had to report composite photocatalitic germicide.As CN 1784974A discloses oneization
The composite photocatalitic germicide of work technical field, its component and percentage by weight are TiO273.7-87.0%, SiO2 10.7-
72.6%, Ag 2.3-3.7%, the particle size of each component is nanoscale.But Ag release in the antibacterial that this technology prepares
Hurry up, the long-lasting deficiency of sterilization and easy to change.
Summary of the invention
For solving the problems referred to above, an object of the present invention is to provide a kind of nano-photo catalytic antibacterial.The present invention's is anti-
Microbial inoculum is the most easy to change, and has taken into account quick-acting and long-acting antibacterial effect and have relatively low cost simultaneously.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that
A kind of nano-photo catalytic antibacterial, contains following raw material by mass percentage:
Nano titanium oxide 40-80%, for example, 42%, 46%, 52%, 58%, 66%, 75% etc.,
Nano silicon 10-50%, for example, 12%, 16%, 22%, 28%, 36%, 45% etc.,
Zinc chloride 5-20%, for example, 6%, 8%, 11%, 14%, 18% etc..
The present invention, by nano titanium oxide and nano silicon, being applied in combination of zinc chloride, not only greatly reduces
The production cost of antibacterial, and make the long-acting and quick-acting antibacterial effect of antibacterial all reach preferable effect, and owing to making
Instead of Ag with Zn makes antibacterial the most easy to change.
As preferably, the nano-photo catalytic antibacterial of the present invention, contains following raw material by mass percentage:
Nano titanium oxide 50-70%
Nano silicon 25-40%
Zinc chloride 10-15%.
As preferably, the particle diameter of nano titanium oxide is 50-300nm, for example, 70-150nm, 100-250nm, 150-
200nm etc., preferably 100-200nm.
As preferably, the particle diameter of nano silicon is 50-300nm, for example, 70-150nm, 100-250nm, 150-
200nm etc., preferably 100-200nm.
Above-mentioned nano titanium oxide, the particle size range of nano silicon make effective sterilization component of antibacterial slowly release
Put.
Nano titanium oxide can obtain by the way of commercially available, and as preferably, nano titanium oxide is made by the following method
Standby: the metatitanic acid four fourth fat ethanol solution of 0.3-0.5M, for example, 0.33M, 0.39M, 0.42M, 0.48M etc. is placed in reactor
Hydro-thermal reaction, reaction terminates rear sucking filtration, and washing is dried, baking after grinding；Take out after stove is cold to grind and i.e. obtain nanometer titanium dioxide
Titanium.The nano titanium oxide uniform particle sizes of the method synthesis of the present invention, surface area is big, and antibacterial effect is more preferable.
Preferably, the temperature of hydro-thermal reaction is 120-200 DEG C, for example, 125 DEG C, 136 DEG C, 145 DEG C, 155 DEG C, 170 DEG C,
185 DEG C, 196 DEG C etc., preferably 150-180 DEG C；The time of hydro-thermal reaction is 5-24 hour, for example, 7 hours, 11 hours, 16
Hour, 22 hours etc., preferably 10-16 hour.
Preferably, the temperature of drying is 70-100 DEG C, for example, 75 DEG C, 80 DEG C, 86 DEG C, 91 DEG C, 99 DEG C etc..
Preferably, the temperature of roasting is 500-700 DEG C, for example, 520 DEG C, 580 DEG C, 620 DEG C, 660 DEG C, 690 DEG C etc., excellent
Elect 550-650 DEG C as；The time of roasting is more than 1 hour, for example, 3 hours, 7 hours, 10 hours, 14 hours etc., is preferably
3-6 hour.
An object of the present invention also resides in the preparation method providing a kind of nano-photo catalytic antibacterial of the present invention,
Comprise the steps:
(1) the ethanol colloidal sol of nano titanium oxide is mixed with the ethanol colloidal sol of nano silicon；
(2) in step (1) gained mixed solution, add liquor zinci chloridi, temperature reaction, obtain described nanometer light and urge
Change antibacterial.
As preferably, in the ethanol colloidal sol of nano titanium oxide, the mass concentration of nano titanium oxide is 10-25%, such as
It is 12%, 16%, 19%, 22%, 24% etc..
As preferably, in the ethanol colloidal sol of nano silicon, the mass concentration of nano silicon is 10-25%, such as
It is 12%, 16%, 19%, 22%, 24% etc..
As preferably, the ethanol colloidal sol of nano titanium oxide and nano silicon the volume ratio of ethanol colloidal sol be 1:
0.1-2, for example, 1:0.3,1:0.6,1:0.9,1:1.2,1:1.6,1:1.9 etc., preferably 1:0.5-1.
As preferably, in liquor zinci chloridi, the mass concentration of zinc chloride is 5-15%, for example, 7%, 9%, 11%, 14%
Deng.
As preferably, the temperature of temperature reaction is 150-300 DEG C, for example, 156 DEG C, 165 DEG C, 170 DEG C, 190 DEG C, 205
DEG C, 226 DEG C, 240 DEG C, 260 DEG C, 280 DEG C, 291 DEG C etc., the time of reaction is 3-15h, for example, 5 hours, 7 hours, 10 little
Time, 14 hours etc..
Invariant color placed for a long time by the antibacterial of the present invention, and the bactericidal effect of 72h all can reach more than 99.5%.
Detailed description of the invention
For the present invention is better described, it is simple to understand technical scheme, the present invention's is typical but non-limiting
Embodiment is as follows:
Embodiment 1
A kind of nano-photo catalytic antibacterial, contains following raw material by mass percentage:
50-300 nanometer particle size titanium dioxide 40%
50-300 nanometer particle size silicon dioxide 50%
Zinc chloride 10%
Prepare nano titanium oxide in the present inventive method.
Nano-photo catalytic antibacterial is prepared according to the method for the present invention.
Embodiment 2
A kind of nano-photo catalytic antibacterial, contains following raw material by mass percentage:
100-150 nanometer particle size titanium dioxide 80%
50-200 nanometer particle size silica 1 0%
Zinc chloride 10%
Prepare nano titanium oxide in the present inventive method.
Nano-photo catalytic antibacterial is prepared according to the method for the present invention.
Embodiment 3
A kind of nano-photo catalytic antibacterial, contains following raw material by mass percentage:
150-250 nanometer particle size titanium dioxide 50%
200-300 nanometer particle size silicon dioxide 35%
Zinc chloride 15%.
Prepare nano titanium oxide in the present inventive method.
Nano-photo catalytic antibacterial is prepared according to the method for the present invention.
Embodiment 4
A kind of nano-photo catalytic antibacterial, contains following raw material by mass percentage:
250-300 nanometer particle size titanium dioxide 70%
50-100 nanometer particle size silicon dioxide 25%
Zinc chloride 5%.
Prepare nano titanium oxide in the present inventive method.
Nano-photo catalytic antibacterial is prepared according to the method for the present invention.
Comparative example 1
A kind of nano-photo catalytic antibacterial, contains following raw material by mass percentage:
350-550 nanometer particle size titanium dioxide 50%
500-1000 nanometer particle size silicon dioxide 35%
Zinc chloride 15%.
Prepare nano titanium oxide in the present inventive method.
Nano-photo catalytic antibacterial is prepared according to the method for the present invention.
Comparative example 2
150-250 nanometer particle size titanium dioxide 50%
200-300 nanometer particle size silicon dioxide 35%
Zinc chloride 15%.
Commercially available nano titanium oxide.
Nano-photo catalytic antibacterial is prepared according to the method for the present invention.
Comparative example 3
The nano-photo catalytic antibacterial that in CN 1784974A, embodiment 3 prepares.
Comparative example 4
A kind of nano-photo catalytic antibacterial, contains following raw material by mass percentage:
250-300 nanometer particle size titanium dioxide 70%
Zinc chloride 30%.
Prepare nano titanium oxide in the present inventive method.
Nano-photo catalytic antibacterial is prepared according to the method for the present invention.
Comparative example 5
A kind of nano-photo catalytic antibacterial, contains following raw material by mass percentage:
250-300 nanometer particle size titanium dioxide 70%
50-100 nanometer particle size silicon dioxide 30%
Prepare nano titanium oxide in the present inventive method.
Nano-photo catalytic antibacterial is prepared according to the method for the present invention.
The antibacterial that embodiment 1-4 prepares, under ultraviolet irradiates, to escherichia coli, staphylococcus aureus, huge bud
Spore bacillus, bacillus subtilis (5 hours, 72 hours) antibiotic rate are more than 99.9%, under not having ultraviolet to irradiate, to large intestine bar
Bacterium, staphylococcus aureus, bacillus megaterium, bacillus subtilis (5 hours, 72 hours) antibiotic rate are more than 99.5%.
The antibacterial that comparative example 1-2 prepares, under ultraviolet irradiates, to escherichia coli, staphylococcus aureus, huge bud
Spore bacillus, bacillus subtilis (5 hours, 72 hours) antibiotic rate are less than 98%, do not have ultraviolet irradiate under, to escherichia coli,
Staphylococcus aureus, bacillus megaterium, bacillus subtilis (5 hours, 72 hours) antibiotic rate are less than 95%.
The antibacterial that comparative example 3 prepares, under ultraviolet irradiates, to escherichia coli, staphylococcus aureus, huge spore
Bacillus, bacillus subtilis (5 hours) antibiotic rate are more than 99.9%, and within 72 hours, antibiotic rate is less than 99%, shines not having ultraviolet
Penetrate down, to escherichia coli, staphylococcus aureus, bacillus megaterium, bacillus subtilis (5 hours) antibiotic rate be 99.5% with
On, within 72 hours, antibiotic rate is less than 98%.
The antibacterial that comparative example 4-5 prepares, under ultraviolet irradiates, to escherichia coli, staphylococcus aureus, huge bud
Spore bacillus, bacillus subtilis (5 hours, 72 hours) antibiotic rate are less than 97%, do not have ultraviolet irradiate under, to escherichia coli,
Staphylococcus aureus, bacillus megaterium, bacillus subtilis (5 hours, 72 hours) antibiotic rate are less than 95%.
From the comparison of embodiment 1-4 and comparative example 1-2 it can be seen that the present invention uses the titanium dioxide of specific nanometer particle size
With titanium dioxide and the effect of silicon dioxide acquirement that the effect of silicon dioxide acquirement is substantially better than particle diameter the most within the scope of the present invention
Really.
From the comparison of embodiment 1-4 and comparative example 3 it can be seen that the effect that the antibacterial that the present invention uses obtains relatively contrasts
In example 3, the antibacterial of acquisition is long-lasting notable more preferable, the antibacterial release of the present invention is described slowly.
From the comparison of embodiment 1-4 and comparative example 3-4 it can be seen that only use nano titanium oxide of the present invention, nanometer
Silicon dioxide, the combination of zinc chloride three could obtain preferable antibacterial effect, few one of them will largely effect on it and resist
Bacterium performance.
Applicant states, the present invention illustrates the method detailed of the present invention by above-described embodiment, but the present invention not office
It is limited to above-mentioned method detailed, does not i.e. mean that the present invention has to rely on above-mentioned method detailed and could implement.Art
Technical staff is it will be clearly understood that any improvement in the present invention, and the equivalence of raw material each to product of the present invention is replaced and auxiliary element
Interpolation, concrete way choice etc., within the scope of all falling within protection scope of the present invention and disclosure.
Claims (10)
1. a nano-photo catalytic antibacterial, contains following raw material by mass percentage:
Nano titanium oxide 40-80%
Nano silicon 10-50%
Zinc chloride 5-20%.
Nano-photo catalytic antibacterial the most according to claim 1, it is characterised in that contain the most former by mass percentage
Material:
Nano titanium oxide 50-70%
Nano silicon 25-40%
Zinc chloride 10-15%.
Nano-photo catalytic antibacterial the most according to claim 1 and 2, it is characterised in that the particle diameter of nano titanium oxide is
50-300nm, preferably 100-200nm.
4. according to the nano-photo catalytic antibacterial described in any one of claim 1-3, it is characterised in that the grain of nano silicon
Footpath is 50-300nm, preferably 100-200nm.
5. according to the nano-photo catalytic antibacterial described in any one of claim 1-4, it is characterised in that nano titanium oxide passes through
Prepared by following method: the metatitanic acid four fourth fat ethanol solution of 0.3-0.5M is placed in hydro-thermal reaction in reactor, and reaction is taken out after terminating
Filter, washing, dry, baking after grinding；Take out after stove is cold to grind and i.e. obtain nano titanium oxide.
Nano-photo catalytic antibacterial the most according to claim 5, it is characterised in that the temperature of hydro-thermal reaction is 120-200,
It is preferably 150-180 DEG C；The time of hydro-thermal reaction is 5-24 hour, preferably 10-16 hour.
7. according to the nano-photo catalytic antibacterial described in claim 5 or 6, it is characterised in that the temperature of drying is 70-100 DEG C；
Preferably, the temperature of roasting is 500-700 DEG C, preferably 550-650 DEG C；The time of roasting is more than 1 hour, is preferably
3-6 hour.
8. a preparation method for the nano-photo catalytic antibacterial described in any one of claim 1-7, comprises the steps:
(1) the ethanol colloidal sol of nano titanium oxide is mixed with the ethanol colloidal sol of nano silicon；
(2) in step (1) gained mixed solution, add liquor zinci chloridi, temperature reaction, obtain described nano-photo catalytic and resist
Microbial inoculum.
Preparation method the most according to claim 8, it is characterised in that nano-silica in the ethanol colloidal sol of nano titanium oxide
The mass concentration changing titanium is 10-25%；
Preferably, in the ethanol colloidal sol of nano silicon, the mass concentration of nano silicon is 10-25%；
Preferably, the ethanol colloidal sol of nano titanium oxide and nano silicon the volume ratio of ethanol colloidal sol be 1:0.1-2,
It is preferably 1:0.5-1；
Preferably, in liquor zinci chloridi, the mass concentration of zinc chloride is 5-15%.
Preparation method the most according to claim 8 or claim 9, it is characterised in that the temperature of temperature reaction is 150-300 DEG C, instead
The time answered is 3-15h.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106977770A (en) * | 2017-03-24 | 2017-07-25 | 潘胜克 | A kind of micro- magnetoelectricity ion antibacterial agent and preparation method thereof |
| CN112690287A (en) * | 2020-12-01 | 2021-04-23 | 张晓龙 | Novel inorganic nano photocatalyst bactericide spray and preparation method thereof |
| CN115590035A (en) * | 2022-10-17 | 2023-01-13 | 广东粤港澳大湾区国家纳米科技创新研究院（Cn） | Composite antibacterial agent and preparation method thereof |
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| CN102499261A (en) * | 2011-11-17 | 2012-06-20 | 中国科学院宁波材料技术与工程研究所 | Preparation method for antibacterial agent |
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|---|---|---|---|---|
| CN1338210A (en) * | 2000-08-16 | 2002-03-06 | 周鹤轩 | Optical agricultural chemical |
| CN1784974A (en) * | 2005-11-10 | 2006-06-14 | 上海交通大学 | Composite photocatalitic germicide |
| CN102499261A (en) * | 2011-11-17 | 2012-06-20 | 中国科学院宁波材料技术与工程研究所 | Preparation method for antibacterial agent |
| CN105131336A (en) * | 2015-09-17 | 2015-12-09 | 无锡市长安曙光手套厂 | Antibacterial agent, preparation method and application thereof |
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| CN106977770A (en) * | 2017-03-24 | 2017-07-25 | 潘胜克 | A kind of micro- magnetoelectricity ion antibacterial agent and preparation method thereof |
| CN112690287A (en) * | 2020-12-01 | 2021-04-23 | 张晓龙 | Novel inorganic nano photocatalyst bactericide spray and preparation method thereof |
| CN115590035A (en) * | 2022-10-17 | 2023-01-13 | 广东粤港澳大湾区国家纳米科技创新研究院（Cn） | Composite antibacterial agent and preparation method thereof |
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