CN101731275A - Silicon-zinc nano mesoporous inorganic antibacterial and preparation method thereof - Google Patents
Silicon-zinc nano mesoporous inorganic antibacterial and preparation method thereof Download PDFInfo
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- CN101731275A CN101731275A CN200910156603A CN200910156603A CN101731275A CN 101731275 A CN101731275 A CN 101731275A CN 200910156603 A CN200910156603 A CN 200910156603A CN 200910156603 A CN200910156603 A CN 200910156603A CN 101731275 A CN101731275 A CN 101731275A
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- LGERWORIZMAZTA-UHFFFAOYSA-N silicon zinc Chemical compound [Si].[Zn] LGERWORIZMAZTA-UHFFFAOYSA-N 0.000 title claims abstract description 16
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000011787 zinc oxide Substances 0.000 claims abstract description 14
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 11
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000013335 mesoporous material Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000005751 Copper oxide Substances 0.000 claims abstract description 8
- 229910000431 copper oxide Inorganic materials 0.000 claims abstract description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 7
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 7
- 239000011701 zinc Substances 0.000 claims abstract description 7
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 7
- -1 polyethylene Polymers 0.000 claims abstract description 6
- 239000004698 Polyethylene Substances 0.000 claims abstract description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims abstract description 5
- 229920000573 polyethylene Polymers 0.000 claims abstract description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 5
- 238000005245 sintering Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 239000003242 anti bacterial agent Substances 0.000 claims description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical group [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 6
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical group CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 4
- 229920001400 block copolymer Polymers 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 239000001294 propane Substances 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 3
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 3
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 3
- UQMOLLPKNHFRAC-UHFFFAOYSA-N tetrabutyl silicate Chemical compound CCCCO[Si](OCCCC)(OCCCC)OCCCC UQMOLLPKNHFRAC-UHFFFAOYSA-N 0.000 claims description 3
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004246 zinc acetate Substances 0.000 claims description 3
- 239000011592 zinc chloride Substances 0.000 claims description 3
- 235000005074 zinc chloride Nutrition 0.000 claims description 3
- ZPEJZWGMHAKWNL-UHFFFAOYSA-L zinc;oxalate Chemical compound [Zn+2].[O-]C(=O)C([O-])=O ZPEJZWGMHAKWNL-UHFFFAOYSA-L 0.000 claims description 3
- 238000005352 clarification Methods 0.000 claims description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 2
- 241000894006 Bacteria Species 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 238000009987 spinning Methods 0.000 abstract 1
- 239000003053 toxin Substances 0.000 abstract 1
- 231100000765 toxin Toxicity 0.000 abstract 1
- 229920000428 triblock copolymer Polymers 0.000 abstract 1
- 241000588724 Escherichia coli Species 0.000 description 6
- 230000002421 anti-septic effect Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- 230000000845 anti-microbial effect Effects 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004599 antimicrobial Substances 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 239000005312 bioglass Substances 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 201000003176 Severe Acute Respiratory Syndrome Diseases 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 230000000843 anti-fungal effect Effects 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 206010064097 avian influenza Diseases 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 208000037801 influenza A (H1N1) Diseases 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- ONVGIJBNBDUBCM-UHFFFAOYSA-N silver;silver Chemical compound [Ag].[Ag+] ONVGIJBNBDUBCM-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 201000010740 swine influenza Diseases 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 229910000166 zirconium phosphate Inorganic materials 0.000 description 1
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a silicon-zinc nano mesoporous inorganic antibacterial and a preparation method thereof. The preparation method comprises the following steps: stirring polyethylene glycol-polypropylene glycol-polyethylene glycol triblock copolymer, deionized water and acid together, adding a silicone source, a zinc source and a copper source, and heating to continuously stir to obtain sol-gel solution; and drying and sintering the sol-gel to obtain the silicon-zinc mesoporous material. The silicon-zinc nano mesoporous inorganic antibacterial consists of silicon dioxide and zinc oxide, and can also be added with copper oxide, wherein the silicon dioxide serves as a network support for the antibacterial; and the zinc oxide and the copper oxide serve as active bodies of the antibacterial; and mesopores prepared by the method have an ordered structure. The antibacterial has the characteristics of simple preparation method, strong bacteria resistance, durable antibacterial effect, stable bacteria resistance, no toxin to human bodies and the like, and can be widely applied to the fields such as ceramics, plastics, spinning, coatings, water treatment and the like.
Description
Technical field
The present invention relates to a kind of nano mesoporous inorganic antibacterial and preparation method thereof, specially refer to a kind of silicon-zinc nano mesoporous inorganic antibacterial material and preparation method.
Background technology
Environmental pollution is serious day by day, microorganism harm humans health such as a large amount of virus, bacterium, fungi.Particularly in recent years, owing to be subjected to the influence of " SARS (Severe Acute Respiratory Syndrome) ", " bird flu ", " H1N1 Flu-A ", people's health consciousness constantly strengthens, and the demand of anti-biotic material and goods thereof is improved greatly.
The antibacterial agent kind mainly contains three kinds at present: organic, natural and inorganic.And inorganic antiseptic is owing to having that easy industrialization, weather resistance are good, stable performance, has a broad antifungal spectrum gain great popularity.Inorganic antiseptic mainly is to be carrier with the inorganic material, by load silver, copper, zinc plasma or simple substance, prepares the antibacterial agent with antibacterial bacteriostatic ability.Normally used carrier has zeolite, apatite, glass, silica gel, basic zirconium phosphate, titanium oxide, clay, aluminium oxide etc., and the antibacterial activity body of loading is a silver.Just developed with the zeolite nineties as Japan and to be the silver ion antimicrobial agent of carrier and to introduce to the market; but silver ion or silver-colored simple substance usually can variable colors; thereby reduce its antibacterial activity and give application for limiting; simultaneously because zeolite pore is little; characteristics such as the duct is short; useful load is little, and silver ion or simple substance are moved to the surface and variable color easily.
Since mesoporous material is found, the excellent specific property of mesoporous material just has been subjected to scholar's extensive concern always, because of it has orderly pore passage structure, high specific surface area and pore volume, regular one dimension six circumference cylindricality ducts, pore-size distribution homogeneous and controlled, the chemical stability height, and the template of synthetic this kind mesoporous material is simple and easy to, and effectively reduces manufacturing cost, thereby shown unique development potentiality in fields such as catalysis, absorption.Chinese patent 200410066666.3 discloses a kind of inorganic mesoporous antiseptic material and preparation method thereof, at first prepare a kind of mesoporous SiO 2 agent in this patent, by zinc supported source or silver-colored source in mesoporous, obtain being loaded with the inorganic antiseptic of zinc oxide or silver-colored simple substance by high temperature sintering under protection gas then; Chinese patent 200610024773.9 discloses mesoporous carrying silver antimicrobials of sodium rice and preparation method thereof, and this patent is carrier with the mesoporous silicon oxide, loads silver ion, and sintering obtains the inorganic antiseptic of Ag-bearing simple substance under high temperature protection gas then; The similarity of these two patents all is to utilize mesoporous silicon oxide to be carrier, by absorption silver ion or zinc ion, at high temperature sinters mesoporous antiseptic material then into.
Summary of the invention
The object of the present invention is to provide a kind of silicon-zinc nano mesoporous inorganic antibacterial and preparation method.
The technical solution used in the present invention is as follows:
One, a kind of silicon-zinc nano mesoporous inorganic antibacterial:
Be made up of silica and zinc oxide, also can add copper oxide, wherein silica is as the network supporter of antibacterial agent, and zinc oxide is as the active body of antibacterial agent, and specific surface area is at 400-900m
2/ g, the aperture is at 3-20nm, pore volume 0.5-1.0m
3/ g,
Described inorganic nanometer-sized mesoporous material consist of SiO
2-ZnO-CuO, its mass percent is SiO
2: ZnO: CuO=(80～95): (5～15): (0～5);
Two, a kind of preparation method of silicon-zinc nano mesoporous inorganic antibacterial, comprise following several steps: polyethylene glycol-propane diols-polyethyleneglycol block copolymer, deionized water and acid are stirred together to clarification, add silicon source, zinc source and Tong Yuan, be heated to 70～100 ℃ then, continue to stir 24～48 hours, obtain sol gel solution, the oven dry sol-gel, 550 ℃～700 ℃ sintering temperatures 6 hours, obtain silicon-zinc mesoporous material; Wherein polyethylene glycol-propane diols-polyethyleneglycol block copolymer accounts for the 0.5-3% of the mass percent of whole solution.
Described silicon source is ethyl orthosilicate, methyl silicate or butyl silicate; The zinc source is zinc chloride, zinc nitrate, zinc acetate or zinc oxalate; The copper source is: copper nitrate, copper chloride or copper sulphate.
Described acid is hydrochloric acid, sulfuric acid or nitric acid.
The beneficial effect that the present invention has is: compared with prior art, the present invention contains the mesoporous antibacterial agent of the zinc-copper of anti-microbial property by direct preparation, wherein silica is as the network supporter of antibacterial agent, zinc oxide, copper oxide are as the active body of antibacterial agent, and the mesoporous of this method preparation is ordered structure.The preparation method is simple for such antibacterial agent, and anti-microbial property is strong, and antibacterial efficacy is lasting, and anti-microbial property is stable, to characteristics such as human body are nontoxic, can be widely used in fields such as pottery, plastics, weaving, coating and water treatment.Preparation technology of the present invention is simpler than the preparation technology of other antibacterial agents simultaneously, easier industrialization production.
Embodiment
Embodiment 1:
5.00 gram P123 are dissolved in the 161.7mL deionized water, adding hydrochloric acid makes the pH value of solution be lower than 2, be stirred to heavy clear, add the 14.75g ethyl orthosilicate, 0.84g the copper nitrate of zinc chloride and 0.76g stirred 72 hours down at 70 ℃, after the oven dry, calcined 6 hours down at 550 ℃, obtain mesoporous material.Be labeled as Sample A, be used for the Escherichia coli antibacterial experiment at last.(silica: zinc oxide: copper oxide is 85: 10: 5).
Embodiment 2:
4.50 gram F104 are dissolved in the 445.5mL deionized water, add sulfuric acid and make the pH value of solution be lower than 2, be stirred to heavy clear, add the 24.03g butyl silicate, 1.43g zinc nitrate and 0.22g copper chloride stirred 36 hours down at 100 ℃, after the oven dry, calcine 6h down, obtain mesoporous material at 650 ℃.Be labeled as sample B, be used for the Escherichia coli antibacterial experiment at last.(silica: zinc oxide: copper oxide is 90: 8: 2).
Embodiment 3:
3 gram F65 are dissolved in the 597mL deionized water, add nitric acid and make the pH value of solution be lower than 2, be stirred to heavy clear, add the 10.15g methyl silicate, 1.69g zinc acetate and 0.79g Salzburg vitriol stirred 1 day down at 120 ℃, after the oven dry, calcine 6h down, obtain mesoporous bioglass at 700 ℃.Be labeled as sample C, be used for the Escherichia coli antibacterial experiment at last.(silica: zinc oxide: copper oxide is 80: 15: 5).
Embodiment 4:
4 gram F85 are dissolved in the 196mL deionized water, add nitric acid and make the pH value of solution be lower than 2, it is clearly heavy to be stirred to, and adds 16.47g ethyl orthosilicate and 0.58g zinc oxalate, stirs 1 day down at 120 ℃, after the oven dry, calcines 6h down at 700 ℃, obtains mesoporous bioglass.Be labeled as sample D, be used for the Escherichia coli antibacterial experiment at last.(silica: zinc oxide is 95: 5).
In the above-mentioned example, P123 is EO
20PO
70EO
20, F104 is EO
27PO
61EO
27, F65 is EO
20PO
30EO
20, F85 is EO
26PO
39EO
26, EO is an oxireme, PO is a propylene oxide.
Above-mentioned 4 embodiment carry out antibacterial experiment according to the antibiotic industry standard of Japan to Escherichia coli, obtain minimal inhibitory concentration among each embodiment, are listed in the table below 1, and each embodiment has shown that all Escherichia coli are had antibacterial ability preferably.
Each embodiment antibacterial agent of table 1 is to colibacillary minimal inhibitory concentration
| ??Sample | ??MIC(ppm) |
| ??A | ??350 |
| ??B | ??400 |
| ??C | ??300 |
| ??D | ??450 |
Claims (5)
1. silicon-zinc nano mesoporous inorganic antibacterial, it is characterized in that: be made up of silica and zinc oxide, also can add copper oxide, wherein silica is as the network supporter of antibacterial agent, and zinc oxide is as the active body of antibacterial agent, and specific surface area is at 400-900m
2/ g, the aperture is at 3-20nm, pore volume 0.5-1.0m
3/ g.
2. a kind of silicon-zinc nano mesoporous inorganic antibacterial according to claim 1 is characterized in that, described inorganic nanometer-sized mesoporous material consist of SiO
2-ZnO-CuO, its mass percent is SiO
2: ZnO: CuO=(80～95): (5～15): (0～5);
3. preparation method who makes the described a kind of silicon-zinc nano mesoporous inorganic antibacterial of claim 1, it is characterized in that, comprise following several steps: polyethylene glycol-propane diols-polyethyleneglycol block copolymer, deionized water and acid are stirred together to clarification, add silicon source, zinc source and Tong Yuan, be heated to 70～100 ℃ then, continue to stir 24～48 hours, obtain sol gel solution, the oven dry sol-gel 550 ℃～700 ℃ sintering temperatures 6 hours, obtains silicon-zinc mesoporous material; Wherein polyethylene glycol-propane diols-polyethyleneglycol block copolymer accounts for the 0.5-3% of the mass percent of whole solution.
4. the preparation method of a kind of silicon-zinc nano mesoporous inorganic antibacterial according to claim 3 is characterized in that, described silicon source is ethyl orthosilicate, methyl silicate or butyl silicate; The zinc source is zinc chloride, zinc nitrate, zinc acetate or zinc oxalate; The copper source is: copper nitrate, copper chloride or copper sulphate.
5. the preparation method of a kind of silicon-zinc nano mesoporous inorganic antibacterial according to claim 3, it is characterized in that: described acid is hydrochloric acid, sulfuric acid or nitric acid.
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2009
- 2009-12-29 CN CN200910156603A patent/CN101731275A/en active Pending
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Application publication date: 20100616 |