CN111634988A - Reactive Oxygen Species (ROS) purification membrane and preparation method and application thereof - Google Patents
Reactive Oxygen Species (ROS) purification membrane and preparation method and application thereof Download PDFInfo
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- CN111634988A CN111634988A CN202010460975.8A CN202010460975A CN111634988A CN 111634988 A CN111634988 A CN 111634988A CN 202010460975 A CN202010460975 A CN 202010460975A CN 111634988 A CN111634988 A CN 111634988A
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- 239000003642 reactive oxygen metabolite Substances 0.000 title claims abstract description 67
- 239000012528 membrane Substances 0.000 title claims abstract description 40
- 238000000746 purification Methods 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 22
- 239000011230 binding agent Substances 0.000 claims abstract description 15
- 238000011049 filling Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 229920001684 low density polyethylene Polymers 0.000 claims description 10
- 239000004702 low-density polyethylene Substances 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 8
- 230000002000 scavenging effect Effects 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 230000001954 sterilising effect Effects 0.000 claims description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000004887 air purification Methods 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 4
- 239000004700 high-density polyethylene Substances 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 2
- 239000000378 calcium silicate Substances 0.000 claims description 2
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000002086 nanomaterial Substances 0.000 claims description 2
- 239000003504 photosensitizing agent Substances 0.000 claims description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 2
- 241000894006 Bacteria Species 0.000 abstract description 13
- 239000012535 impurity Substances 0.000 abstract description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 14
- 241000588724 Escherichia coli Species 0.000 description 8
- 241000282414 Homo sapiens Species 0.000 description 7
- 229910001297 Zn alloy Inorganic materials 0.000 description 6
- 238000000227 grinding Methods 0.000 description 6
- 239000011812 mixed powder Substances 0.000 description 6
- 241000700605 Viruses Species 0.000 description 5
- 208000015181 infectious disease Diseases 0.000 description 4
- 230000002458 infectious effect Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 241000893536 Epimedium Species 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000018905 epimedium Nutrition 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003904 radioactive pollution Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a Reactive Oxygen Species (ROS) purification membrane; the ROS purification membrane comprises, by weight, 5-40 parts of a powder material capable of generating ROS, 20-60 parts of a filling material and 10-30 parts of a binding agent, is prepared by adjusting a formula and a forming process, can be applied to the field of water treatment, and can be used for filtering impurities such as silt, rust and the like in water and killing bacteria in the water.
Description
Technical Field
The invention relates to a Reactive Oxygen Species (ROS) purification membrane and a preparation method thereof, and the ROS purification membrane is applied to the fields of water treatment, air purification and the like by utilizing the characteristic that generated ROS kill bacteria.
Background
Due to unexpected negative effects of people on highly developed industries, adverse prevention causes three global crises, namely resource shortage, environmental pollution and ecological destruction. Environmental pollution refers to the act of adding a substance to the environment that exceeds the self-cleaning ability of the environment and creates a hazard, either naturally or artificially. Or the environment is polluted by harmful substances due to human factors, so that the constitution or the state of the environment is changed, the environment quality is reduced, the phenomena of normal production and living conditions of an ecological system and human beings are disturbed and destroyed, and the growth and the reproduction of organisms and the normal life of the human beings are harmfully influenced.
Air and water are indispensable factors for human life and production, and air and water pollution is more and more serious along with industrial development. When the concentration of pollutants in the air reaches or exceeds a harmful degree, the normal survival and development of an ecological system and human beings are damaged, harm is caused to the human beings and the organisms, and the water body is changed in aspects of chemical, physical, biological or radioactive pollution and the like due to the intervention of certain substances, so that the effective utilization of water is influenced, the health of the human body is harmed or the ecological environment is damaged, and the water quality is deteriorated.
The pollutants in the air except harmful gases and particles have a large amount of microbes such as bacteria and viruses, one part of the pollutants is attached to the particles in the air, the particles with the diameter of more than 10 mu m can fall to the ground together with the microbes such as the bacteria and the viruses, and the particles with the diameter of less than 10 mu m can carry the bacteria and the viruses to float in the air for a long time; the other part is contained in the droplets, when people sneeze, cough, sing and talk, the droplets are sprayed from the oral cavity and the nostrils, bacteria and viruses in the droplets or 'droplet cores' formed by evaporation of the droplets attached to the droplets can be rapidly dispersed everywhere indoors and float in the indoor air for a long time, and the propagation of respiratory infectious diseases is very easy to cause.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a Reactive Oxygen Species (ROS) purification membrane and a preparation method thereof, and the ROS purification membrane is applied to the fields of water treatment, air purification and the like by utilizing the characteristic that bacteria are killed by generated ROS.
In order to achieve the above object, in one aspect, the present invention provides a Reactive Oxygen Species (ROS) purification membrane, comprising the following components in parts by weight:
5-40 parts of ROS powder material;
20-60 parts of a filling material;
10-30 parts of a binder.
As a preferred embodiment of the present invention, the ROS powder material includes titanium dioxide powder, a composite of a metal oxide and a metal, a phthalocyanine-based photosensitizer, a carbon nanomaterial, and the like.
In a preferred embodiment of the present invention, the filler includes glass fiber powder, calcium carbonate, calcium silicate, talc powder, diatomaceous earth, fly ash, activated carbon powder, and the like.
As a preferred embodiment of the present invention, the binder comprises one or more of Low Density Polyethylene (LDPE), High Density Polyethylene (HDPE), Linear Low Density Polyethylene (LLDPE), ethylene-vinyl acetate copolymer (EVA), polypropylene (PP), or ultra-high molecular weight polyethylene.
In another aspect, the present invention further provides a method for preparing the Reactive Oxygen Species (ROS) scavenging film, comprising the steps of:
1) mixing the ROS powder material, the filling material and the binder for 20-40 minutes in proportion;
2) filling the mixed material obtained in the step 1) into a prepared mould;
3) moving the die in the step 2) into an inert gas protection sintering furnace, and sintering at the temperature of 150-380 ℃ for 30-90 minutes;
4) demolding the sintered and molded purification membrane in the step 3), and cutting to obtain a finished product;
preferably, the ROS purifying membrane comprises the following materials in proportion: 5-40 parts of ROS powder material, 20-60 parts of filling material and 10-30 parts of binder.
The active oxygen (ROS) purification membrane prepared by the invention can be applied to the fields of water treatment and air purification.
In conclusion, the active oxygen (ROS) purification membrane is prepared by adjusting a formula and a forming process, can be applied to the field of water treatment, filters impurities such as silt, rust and the like in water and kills bacteria in the water, and can be used for an air purification device to release active oxygen so as to effectively kill bacteria, viruses and other microorganisms in the air.
Drawings
FIG. 1 is a schematic diagram of the principle of reactive oxygen species generation by the Reactive Oxygen Species (ROS) scavenging membrane of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
14 g of ZnO/Zn alloy powder, 78 g of activated carbon powder and 45 g of LDPE binder are respectively put into a mixing tank to be mixed for 20 minutes, the mixed powder is added into a straight tube grinding tool to be compacted by a compactor, the mixture is baked for 60 minutes at 180 ℃, and the ROS purification membrane A1 (the size: the outer diameter is 45mm, the inner diameter is 20mm, and the length is 180mm) is obtained by demoulding and cutting.
Respectively putting 14 g of ZnO/Zn alloy powder, 78 g of activated carbon powder and 45 g of LDPE binder into a mixing tank, mixing for 20 minutes, adding the mixed powder into a straight tube grinding tool, compacting by a compactor, baking for 60 minutes at 180 ℃ in a nitrogen protection sintering furnace, and demolding and cutting to obtain the ROS purification membrane A2 (the size: the outer diameter is 45mm, the inner diameter is 20mm, and the length is 180 mm).
28 g of ZnO/Zn alloy powder, 65 g of activated carbon powder and 45 g of LDPE binder are respectively put into a mixing tank to be mixed for 20 minutes, the mixed powder is added into a straight tube grinding tool to be compacted by a compactor, the mixture is baked for 60 minutes at 180 ℃ in a nitrogen protection sintering furnace, and the ROS purification membrane A3 (the size: the outer diameter is 45mm, the inner diameter is 20mm, and the length is 180mm) is obtained by demoulding and cutting.
Respectively putting 14 g of ZnO/Zn alloy powder, 78 g of calcium carbonate powder and 45 g of LDPE binder into a mixing tank, mixing for 20 minutes, adding the mixed powder into a straight tube grinding tool, compacting by a compactor, baking for 70 minutes at 190 ℃, and demolding and cutting to obtain the ROS purification film B1 (the size: the outer diameter is 45mm, the inner diameter is 20mm, and the length is 180 mm).
Respectively putting 14 g of ZnO/Zn alloy powder, 78 g of calcium carbonate powder and 45 g of LDPE binder into a mixing tank, mixing for 20 minutes, adding the mixed powder into a straight tube grinding tool, compacting by a compactor, baking for 70 minutes at 190 ℃ in a nitrogen protection sintering furnace, and demolding and cutting to obtain the ROS purification film B2 (the size: the outer diameter is 45mm, the inner diameter is 20mm, and the length is 180 mm).
28 g of ZnO/Zn alloy powder, 65 g of calcium carbonate powder and 45 g of LDPE binder are respectively put into a mixing tank to be mixed for 20 minutes, the mixed powder is added into a straight tube grinding tool to be compacted by a compactor, the mixture is baked for 70 minutes at 190 ℃ in a nitrogen protection sintering furnace, and the ROS purification membrane B3 (the size: the outer diameter is 45mm, the inner diameter is 20mm, and the length is 180mm) is obtained by demoulding and cutting.
Example two
And respectively carrying out escherichia coli and mixed bacteria removal comparison tests on the prepared ROS purification membranes A1, A2, A3, B1, B2 and B3, wherein the escherichia coli is marked with 90000CFU/ml, and the mixed bacteria are tested by using underground water.
1) ROS-purifying bactericidal membrane A1, A2, A3 and B1, B2, B3 Escherichia coli removal test
Preparing a labeling solution of 90000CFU/ml of escherichia coli, washing a test sample with pure water for 15min, and testing the removal rate of escherichia coli on ROS purification membranes A1, A2, A3, B1, B2 and B3 under the condition of a flow rate of 3L/min, wherein the test results are as follows:
TABLE-ROS purification Membrane Escherichia coli removal Rate
2) ROS-purifying membranes A1, A2, A3 and B1, B2, B3 infectious microbe removal test
Selecting underground water as test raw water, washing a test sample with pure water for 15min, and testing the removal rate of mixed bacteria of the ROS purification and sterilization membranes A1, A2, A3 and B1, B2 and B3 under the condition of the flow rate of 3L/min, wherein the test results are as follows:
epimedium ROS purification membrane infectious microbe removal rate
According to the detection results, the ROS material can be effectively protected and the activity of the ROS material can be retained by sintering the ROS purification membrane in an inert gas protection sintering furnace, the removal rate of Escherichia coli and infectious microbes is increased along with the increase of the addition amount, and when the addition amount is 20%, the Escherichia coli removal rate can reach 99.99%, and the infectious microbes removal rate can reach 99.9%.
EXAMPLE III
The prepared ROS purification membrane A3 is connected with underground water as test raw water, after the pure water of a test sample is washed for 15min, the water outlet end of the ROS purification membrane is respectively connected with 1 meter and 3 meter PE water pipes under the condition of flow rate of 3L/min, the sterilization efficiency of the water sample of the water is respectively tested, and the test result is as follows:
meter three ROS purification Membrane Sterilization Range test
According to the detection results, bacteria can be effectively killed at a position 1 m away from the water outlet end of the ROS purification membrane, the sterilization rate reaches 99%, the sterilization effect at a position 3 m away is weakened, and the sterilization rate is reduced to 95%.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (9)
1. The Reactive Oxygen Species (ROS) purification membrane is characterized by comprising the following components in parts by weight:
5-40 parts of ROS powder material;
20-60 parts of a filling material;
10-30 parts of a binder.
2. The Reactive Oxygen Species (ROS) scavenging membrane of claim 1, wherein: after water flow or air flow passes through the ROS purification membrane, the ROS purification membrane can release active oxygen into water or gas, so that the water or the gas can generate a sterilization effect.
3. The Reactive Oxygen Species (ROS) scavenging membrane of claim 1, wherein: the ROS powder material comprises one or a mixture of more than two of titanium dioxide powder, a composite material of metal oxide and metal, a phthalocyanine photosensitizer and a carbon nano material.
4. The Reactive Oxygen Species (ROS) scavenging membrane of claim 1, wherein: the filling material comprises one or a mixture of more than two of glass fiber powder, calcium carbonate, calcium silicate, talcum powder, diatomite, fly ash and activated carbon powder.
5. The Reactive Oxygen Species (ROS) scavenging membrane of claim 1, wherein: the binder comprises one or a mixture of a plurality of Low Density Polyethylene (LDPE), High Density Polyethylene (HDPE), Linear Low Density Polyethylene (LLDPE), ethylene-vinyl acetate copolymer (EVA), polypropylene (PP) or ultrahigh molecular weight polyethylene.
6. A method of making a Reactive Oxygen Species (ROS) scavenging membrane according to any one of claims 1-5, comprising the steps of:
1) mixing the ROS powder material, the filling material and the binder for 20-40 minutes in proportion;
2) filling the mixed material obtained in the step 1) into a prepared mould;
3) moving the die in the step 2) into an inert gas protection sintering furnace, and sintering at the temperature of 150-380 ℃ for 30-90 minutes;
4) and (3) demolding the sintered and molded purification membrane in the step 3), and cutting to obtain a finished product.
7. The method according to claim 6, wherein: the inert gas is nitrogen.
8. The method according to claim 6, wherein: in the step (1), the materials are prepared from the following components in parts by weight: 5-40 parts of ROS powder material, 20-60 parts of filling material and 10-30 parts of binder.
9. Use of a Reactive Oxygen Species (ROS) scavenging membrane according to any one of claims 1 to 8 in the fields of water treatment and air purification.
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| CN202010460975.8A CN111634988A (en) | 2020-05-27 | 2020-05-27 | Reactive Oxygen Species (ROS) purification membrane and preparation method and application thereof |
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| CN202010460975.8A CN111634988A (en) | 2020-05-27 | 2020-05-27 | Reactive Oxygen Species (ROS) purification membrane and preparation method and application thereof |
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| US20190246636A1 (en) * | 2016-09-20 | 2019-08-15 | Agency For Science, Technology And Research | Redox Active Metal/Metal Oxide Composites For Antimicrobial Applications |
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2020
- 2020-05-27 CN CN202010460975.8A patent/CN111634988A/en active Pending
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