CN115551807A - 镧/钼复合氧化物、抗菌性烧结体和抗病毒性烧结体 - Google Patents
镧/钼复合氧化物、抗菌性烧结体和抗病毒性烧结体 Download PDFInfo
- Publication number
- CN115551807A CN115551807A CN202180033977.1A CN202180033977A CN115551807A CN 115551807 A CN115551807 A CN 115551807A CN 202180033977 A CN202180033977 A CN 202180033977A CN 115551807 A CN115551807 A CN 115551807A
- Authority
- CN
- China
- Prior art keywords
- lanthanum
- composite oxide
- molybdenum composite
- crystal phase
- molybdenum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052746 lanthanum Inorganic materials 0.000 title claims abstract description 103
- 229910052750 molybdenum Inorganic materials 0.000 title claims abstract description 98
- 239000011733 molybdenum Substances 0.000 title claims abstract description 98
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 title claims abstract description 96
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 239000002131 composite material Substances 0.000 title claims abstract description 94
- 230000000844 anti-bacterial effect Effects 0.000 title claims description 32
- 230000000840 anti-viral effect Effects 0.000 title claims description 31
- 239000013078 crystal Substances 0.000 claims abstract description 74
- 238000002441 X-ray diffraction Methods 0.000 claims description 25
- 238000001228 spectrum Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 13
- 238000005245 sintering Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000000634 powder X-ray diffraction Methods 0.000 claims description 9
- 239000012071 phase Substances 0.000 description 74
- 239000000843 powder Substances 0.000 description 61
- 238000010304 firing Methods 0.000 description 34
- 238000011156 evaluation Methods 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 16
- 150000002604 lanthanum compounds Chemical class 0.000 description 16
- 239000005078 molybdenum compound Substances 0.000 description 16
- 150000002752 molybdenum compounds Chemical class 0.000 description 16
- 238000001514 detection method Methods 0.000 description 13
- 239000011812 mixed powder Substances 0.000 description 13
- 238000012360 testing method Methods 0.000 description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 9
- 241000894006 Bacteria Species 0.000 description 8
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 8
- 230000009471 action Effects 0.000 description 8
- 239000007790 solid phase Substances 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 6
- 239000011259 mixed solution Substances 0.000 description 6
- -1 for example Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 241000191967 Staphylococcus aureus Species 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 241000700605 Viruses Species 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 241000712461 unidentified influenza virus Species 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241001534160 Escherichia virus Qbeta Species 0.000 description 2
- 241001263478 Norovirus Species 0.000 description 2
- 241000589517 Pseudomonas aeruginosa Species 0.000 description 2
- 230000000845 anti-microbial effect Effects 0.000 description 2
- 230000002155 anti-virotic effect Effects 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 150000002603 lanthanum Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 241001515965 unidentified phage Species 0.000 description 2
- 238000004438 BET method Methods 0.000 description 1
- 241001118702 Border disease virus Species 0.000 description 1
- 241000710780 Bovine viral diarrhea virus 1 Species 0.000 description 1
- 241000710777 Classical swine fever virus Species 0.000 description 1
- 241000711573 Coronaviridae Species 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 241000714201 Feline calicivirus Species 0.000 description 1
- 241000192125 Firmicutes Species 0.000 description 1
- 229910002287 La2Mo2O9 Inorganic materials 0.000 description 1
- RJQXTJLFIWVMTO-TYNCELHUSA-N Methicillin Chemical compound COC1=CC=CC(OC)=C1C(=O)N[C@@H]1C(=O)N2[C@@H](C(O)=O)C(C)(C)S[C@@H]21 RJQXTJLFIWVMTO-TYNCELHUSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 241000191963 Staphylococcus epidermidis Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 208000037584 hereditary sensory and autonomic neuropathy Diseases 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- CZMAIROVPAYCMU-UHFFFAOYSA-N lanthanum(3+) Chemical compound [La+3] CZMAIROVPAYCMU-UHFFFAOYSA-N 0.000 description 1
- 230000004298 light response Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229960003085 meticillin Drugs 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000010532 solid phase synthesis reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000012856 weighed raw material Substances 0.000 description 1
Images
Classifications
-
- 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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/28—Molybdenum
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G39/00—Compounds of molybdenum
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/30—Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6
- C01F17/32—Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6 oxide or hydroxide being the only anion, e.g. NaCeO2 or MgxCayEuO
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P1/00—Disinfectants; Antimicrobial compounds or mixtures thereof
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/009—Preparation by separation, e.g. by filtration, decantation, screening
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/04—Mixing
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
- B01J37/088—Decomposition of a metal salt
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/495—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
- C04B35/6262—Milling of calcined, sintered clinker or ceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
-
- 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
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/74—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by peak-intensities or a ratio thereof only
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/90—Other properties not specified above
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3227—Lanthanum oxide or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3256—Molybdenum oxides, molybdates or oxide forming salts thereof, e.g. cadmium molybdate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5409—Particle size related information expressed by specific surface values
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/604—Pressing at temperatures other than sintering temperatures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
- C04B2235/6586—Processes characterised by the flow of gas
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/76—Crystal structural characteristics, e.g. symmetry
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/80—Phases present in the sintered or melt-cast ceramic products other than the main phase
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Pest Control & Pesticides (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Geology (AREA)
- Wood Science & Technology (AREA)
- Plant Pathology (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Catalysts (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
本发明的镧/钼复合氧化物将La2Mo2O9作为主晶相、将前述La2Mo2O9以外的镧/钼复合氧化物作为副晶相。
Description
技术领域
本发明涉及镧/钼复合氧化物、抗菌性烧结体和抗病毒性烧结体。
背景技术
已知有具备抗菌性和抗病毒性的无机系材料。作为该种无机系材料，例如已知有Ag、Cu等金属系材料、ZnO、CaO等金属氧化物系材料、TiO2等光催化剂系材料等。
然而，Ag等金属系材料存在随着时间的经过而容易惰性化的问题。特别是Ag昂贵，还产生成本上的问题。另外，金属氧化物系材料与金属系材料相比，存在抗菌性等低的问题。另外，光催化剂系材料存在在无光的环境下、无法体现抗菌性等的问题。
由于这种事情等，以往作为具备抗菌性和抗病毒性的新型的无机系材料，提供了由La2Mo2O9形成的陶瓷(参照非专利文献1)。La2Mo2O9是包含镧和钼的复合氧化物，作为兼具抗菌性和抗病毒性的新材料备受关注。需要说明的是，镧在稀土元素中较廉价，是容易获得的材料。
现有技术文献
非专利文献
非专利文献1：Takumi Matsumoto,et al.,"Preparation of hydrophobicLa2Mo2O9 ceramics with antibacterial and antiviral properties",Journal ofHazardous Materials,Elsevier Science,Netherlands,volume 378,15October2019,article 120610
发明内容
发明要解决的问题
包含镧和钼的复合氧化物虽然兼具抗菌性和抗病毒性，但是对于其抗菌性和抗病毒性，存在进一步改善的余地。
用于解决问题的方案
本发明的目的在于，提供：兼具优异的抗菌性和抗病毒性的镧/钼复合氧化物等。
本发明人等为了实现前述目的进行了深入研究，结果发现：将La2Mo2O9作为主晶相、将前述La2Mo2O9以外的镧/钼复合氧化物作为副晶相的镧/钼复合氧化物兼具优异的抗菌性和抗病毒性，至此完成了本发明。
用于解决前述课题的方案如以下所述。即，
<1>一种镧/钼复合氧化物，其将La2Mo2O9作为主晶相、将前述La2Mo2O9以外的镧/钼复合氧化物作为副晶相。
<2>根据前述<1>所述的镧/钼复合氧化物，其中，前述副晶相包含选自由La2Mo3O12、La6MoO12、La7Mo7O30、La2Mo4O15、La2MoO6、La4MoO9和LaMo2O5组成的组中的至少1种。
<3>根据前述<1>或<2>所述的镧/钼复合氧化物，其中，通过粉末X射线衍射法得到的X射线衍射光谱中，源自前述主晶相的衍射峰中不与副晶相的峰重叠的峰中最大的衍射峰的强度X、与源自前述副晶相的衍射峰中不与主晶相重叠的峰中最大的衍射峰的强度Y的比率为Y/X<1。
<4>一种抗菌性烧结体，其是使前述<1>～<3>中任一项所述的镧/钼复合氧化物烧结而成的。
<5>一种抗病毒性烧结体，其是使前述<1>～<3>中任一项所述的镧/钼复合氧化物烧结而成的。
发明的效果
根据本发明，可以提供：兼具优异的抗菌性和抗病毒性的镧/钼复合氧化物等。
附图说明
图1为实施例1的镧/钼复合氧化物粉末的X射线衍射光谱
图2为实施例2的镧/钼复合氧化物粉末的X射线衍射光谱
图3为实施例3的镧/钼复合氧化物粉末的X射线衍射光谱
图4为比较例2的镧/钼复合氧化物粉末的X射线衍射光谱
图5为实施例1的烧结体的X射线衍射光谱
图6为实施例2的烧结体的X射线衍射光谱
图7为实施例3的烧结体的X射线衍射光谱
具体实施方式
〔镧/钼复合氧化物〕
本实施方式的镧/钼复合氧化物是将La2Mo2O9作为主晶相、将La2Mo2O9以外的镧/钼复合氧化物作为副晶相的镧(La)和钼(Mo)的复合氧化物。
作为前述La2Mo2O9以外的镧/钼复合氧化物(亦即，作为前述副晶相)，优选包含选自由La2Mo3O12、La6MoO12、La7Mo7O30、La2Mo4O15、La2MoO6、La4MoO9和LaMo2O5组成的组中的至少1种。
作为前述副晶相，特别优选包含选自由La2Mo3O12、La6MoO12、La7Mo7O30和LaMo2O5组成的组中的至少1种。
需要说明的是，本实施方式的镧/钼复合氧化物中，将作为副晶相包含的La2Mo2O9以外的镧/钼复合氧化物有时称为“镧/钼副复合氧化物”。另外，本实施方式的镧/钼复合氧化物中，将作为主晶相包含的La2Mo2O9有时称为“镧/钼主复合氧化物”。
镧/钼复合氧化物的形态可以为粉末，也可以为使该粉末烧结而成的烧结体。
镧/钼复合氧化物中的主晶相和副晶相可以通过对利用粉末X射线衍射法得到的镧/钼复合氧化物的X射线衍射光谱进行解析而确定。
如后述，将得到的X射线衍射光谱中、强度高的顺序源自3个衍射峰的晶相定义为主晶相(主相)，将该主晶相的光谱以外的光谱定义为副晶相。构成主晶相的镧/钼主复合氧化物(亦即，La2Mo2O9)的确定、和构成副晶相的镧/钼副复合氧化物(La2Mo3O12等)的确定通过分别与La2Mo2O9、La2Mo3O12等的公知的X射线衍射光谱数据的比较而进行。
需要说明的是，本实施方式的镧/钼复合氧化物中，通过粉末X射线衍射法得到的X射线衍射光谱中，源自前述主晶相的衍射峰中不与副晶相的峰重叠的峰中最大的衍射峰的强度X、与源自前述副晶相的衍射峰中不与主晶相的峰重叠的峰中最大的衍射峰的强度Y的比率为Y/X<1。
本实施方式的镧/钼复合氧化物经以下所示的制备工序、烧成工序而制造。
调整工序是将镧化合物和钼化合物混合制备混合粉末的工序。
镧化合物是为了制造镧/钼复合氧化物所需的包含镧(La)的化合物，例如可以举出La(OH)3、La2O3、La2(CO3)3等。作为镧化合物，例如也可以使用选自由La(OH)3、La2O3、La2(CO3)3组成的组中的至少1种。需要说明的是，作为镧化合物，优选La(OH)3。
钼化合物是为了制造镧/钼复合氧化物所需的包含钼(Mo)的化合物，例如可以举出MoO3、MoO2、MoO、Mo(OH)3、Mo(OH)5等。作为钼化合物，例如也可以使用选自由MoO3、MoO2、MoO、Mo(OH)3、Mo(OH)5组成的组中的至少1种。需要说明的是，作为钼化合物，优选MoO3。
镧化合物和钼化合物的混合比优选按照以摩尔比计成为La：Mo＝1：1的方式进行调整。
镧化合物和钼化合物的混合通过彼此为固相状态的镧化合物和钼化合物而进行。镧化合物和钼化合物彼此为粉末，它们可以以彼此粉末的状态混合，也可以在它们的粉末中加入低级醇(乙醇)等溶剂进行湿式混合。镧化合物和钼化合物的混合例如可以以利用了氧化铝球(氧化铝鹅卵石)等的湿式混合进行。需要说明的是，经湿式混合的混合物(湿式混合物)通过热水烫干燥、喷雾干燥等而适宜干燥。
通过这种调整工序，得到镧化合物和钼化合物的混合粉末。
烧成工序是将制备工序中得到的混合粉末以固相状态进行烧成的工序。例如烧成工序中，将前述混合粉末以固相状态、在500℃以上且700℃以下的温度条件下烧成2小时以上。烧成工序在通常的大气气氛下进行而无需在特殊的合成空气的气氛下进行。
通过该烧成工序，前述混合粉末中的固相状态的镧化合物与固相状态的钼化合物反应，得到包含La2Mo2O9作为主晶相、包含La2Mo3O12等作为副晶相的粉末状的镧/钼复合氧化物(镧/钼复合氧化物粉末)。
需要说明的是，本说明书中，将为了使前述混合粉末中的镧化合物和钼化合物反应而进行的上述烧成工序有时称为“第1烧成工序”。该第1烧成工序是在镧/钼复合氧化物粉末被烧结前进行的烧成工序(预焙烧工序)。
前述烧成工序后，得到镧/钼复合氧化物粉末。得到的镧/钼复合氧化物粉末可以根据需要进行造粒。例如，在得到的镧/钼复合氧化物粉末中添加乙醇等溶剂，且进行利用了氧化铝球等的湿式混合粉碎，从而制备浆料，使该浆料的干燥物通过规定网眼的筛子，由此得到造粒成规定大小的镧/钼复合氧化物粉末。
另外，使镧/钼复合氧化物粉末烧结，也可以作为烧结体使用。例如，使用规定的加压机，将镧/钼复合氧化物粉末成型为规定形状(例如圆柱状、圆板状等)，使得到的成型体在规定的温度条件(例如900℃以上)下进行烧成，从而烧结，由此得到镧/钼复合氧化物粉末的烧结体。
需要说明的是，本说明书中，将为了使镧/钼复合氧化物粉末烧结而进行的烧成工序有时称为“第2烧成工序”。该第2烧成工序是为了使镧/钼复合氧化物粉末烧结而进行的正式烧成工序，可以在大气气氛下进行。
本实施方式的镧/钼复合氧化物以烧结前的粉末的状态(亦即，镧/钼复合氧化物粉末)体现抗菌性(抗菌活性)和抗病毒性(抗病毒活性)。另外，本实施方式的镧/钼复合氧化物在烧结后也与烧结前同样地体现抗菌性和抗病毒性。镧/钼复合氧化物的抗菌性和抗病毒性的评价方法如后述。
镧/钼复合氧化物对金黄色葡萄球菌(革兰氏阳性菌)、大肠杆菌(革兰氏阴性菌)等体现抗菌性。另外推测，镧/钼复合氧化物对肺炎杆菌、耐甲氧西林金黄色葡萄球菌、表皮葡萄球菌、绿脓杆菌、多重耐药性绿脓杆菌等体现抗菌性。
另外，镧/钼复合氧化物对噬菌体Qβ、噬菌体
等体现抗病毒性。需要说明的是，噬菌体Qβ无包膜，已知作为诺如病毒的替代病毒，噬菌体
有包膜，已知作为流感病毒的替代病毒。另外推测，镧/钼复合氧化物对猫杯状病毒(人诺如病毒的替代)、人流感病毒、猪霍乱病毒、牛病毒性腹泻病毒、边界病病毒、川崎病毒、冠状病毒、禽流感病毒等体现抗病毒性。
另外，本实施方式的镧/钼复合氧化物为拒水性。
本实施方式的镧/钼复合氧化物可以直接以粉末的状态(镧/钼复合氧化物粉末)使用，也可以将镧/钼复合氧化物粉末配合在涂料、树脂等其他材料中使用。另外，如上述，镧/钼复合氧化物可以以烧结体的状态使用。
以下，基于实施例对对本发明进一步详细地进行说明。需要说明的是，本发明不受这些实施例的任何限定。
〔实施例1〕
(基于固相法的镧/钼复合氧化物粉末的制作)
准备La(OH)3作为镧化合物，准备MoO3作为钼化合物。然后，按照以摩尔比计成为1：1(La：Mo＝1：1)的方式分别称量镧化合物的原料粉末与钼化合物的原料粉末。将称量后的各原料粉末与规定量的乙醇一起混合，将得到的湿式混合物干燥，从而得到混合粉末。需要说明的是，混合粉末中，固相状态的镧化合物与固相状态的钼化合物成为彼此混合的状态。
然后，将前述混合粉末在大气气氛下、以550℃的温度条件进行10小时烧成，从而得到由镧化合物与钼化合物的反应物形成的烧成粉末(第1次烧成工序)。然后，为了将得到的烧成粉末造粒，进行以下所示的操作。
与规定量的乙醇一起放入至树脂罐内，对于它们的混合物，实施利用了氧化铝鹅卵石的湿式混合粉碎，从而得到浆料。
之后，将得到的浆料以80℃的温度条件干燥约2小时，使得到的干燥物通过网眼为250μm的筛子，从而得到作为造粒粉末的实施例1的镧/钼复合氧化物粉末。
(烧结体的制作)
使用规定的加压机(成型压力：98MPa)将造粒后的前述镧/钼复合氧化物粉末粉末加压成型，之后，在压力150MPa下，进行CIP处理(低温静液压加压成型处理)，从而得到圆板状的成型体(直径：17mm、厚度：2.5mm)。然后，将该成型体在大气气氛下、以900℃的温度条件烧成10小时，从而得到烧结体(第2次烧成工序)。对得到的烧结体进一步进行平面研磨，从而得到后述的接触角等的评价用的实施例1的烧结体(直径：15mm、厚度：2.0mm的圆板状)。
〔实施例2〕
造粒后的镧/钼复合氧化物粉末的制造过程中，将混合粉末的烧成温度变更为600℃，除此之外，与实施例1同样地制作实施例2的镧/钼复合氧化物粉末。然后，使用该镧/钼复合氧化物粉末，根据与实施例1同样的方法，制作实施例2的烧结体(评价用的烧结体)。
〔实施例3〕
造粒后的镧/钼复合氧化物粉末的制造过程中，将混合粉末的烧成温度变更为650℃，除此之外，与实施例1同样地制作实施例3的镧/钼复合氧化物粉末。然后，使用该镧/钼复合氧化物粉末，根据与实施例1同样的方法，制作实施例3的烧结体(评价用的烧结体)。
〔比较例1〕
作为比较例1，示出由络合物聚合法制作的非专利文献1中记载的粉末、和烧结体。比较例1的粉末和烧结体的制作方法如非专利文献1中记载，以下，简单说明。
使2.503g的La(NO3)3·6H2O和1.021g的(NH4)6Mo7O24·4H2O溶解于10ml的蒸馏水，制作混合溶液。需要说明的是，混合溶液中的镧离子和钼离子以摩尔比计成为1：1。然后，在该混合溶液中，加入柠檬酸和乙二醇。需要说明的是，前述混合溶液中，结合了镧离子与钼离子的金属离子、跟柠檬酸以摩尔比计成为1：2。另外，前述混合液中，乙二醇与柠檬酸以摩尔比计成为2：3。
将前述混合溶液以80℃搅拌6小时，从而得到凝胶状的前体。使该前体以200℃干燥24小时，之后，利用乳钵和研杵将干燥后的前体粉碎10分钟。然后，将得到的粉碎物以500℃的温度条件烧成12小时，从而得到比较例1的粉末。
(烧结体的制作)
对在上述粉末中以2体积％的比例加入了作为粘结剂的乙二醇而成者，在100MPa下进行3分钟单轴加压成型，从而得到直径10mm的成型体(粒料)。将得到的成型体在规定的合成空气气氛下、以900℃的温度条件烧成12小时，从而得到烧结体。需要说明的是，合成空气是氮气(80％)与氧气(20％)的混合气体，以1.0L/分钟的流速供给。
〔比较例2〕
将混合粉末的烧成温度变更为800℃，除此之外，与实施例1同样地得到比较例2的造粒粉末。
〔使用了粉末XRD的晶相的确定(1)〕
对于第1次烧成后得到的各实施例等粉末(烧结前)，利用粉末X射线衍射法(XRD：X-ray diffraction)，确定晶相中的主晶相和副晶相。测定条件如以下所述。
<测定条件>
测定装置：粉末X射线衍射装置(装置名“Smart lab”、Rigaku Corporation制)
检测器：D/teX Ultra250.
光学系：集中型光学系Bragg-Brentaro型
X射线输出：40kV-30mA
步距幅度：0.0200°
扫描轴：2θ/θ
扫描范围：10.00°～80.00°
旋转：有
<主晶相和副晶相的定义>
将得到的X射线衍射光谱中、强度高的顺序源自3个衍射峰的晶相定义为主晶相(主相)。而且，将该主晶相的光谱以外的光谱定义为副晶相。
各实施例等的X射线衍射光谱的结果(烧结前)示于图1～图4，晶相的确定结果示于表1。需要说明的是，关于比较例1的结果，参照非专利文献1的记载。需要说明的是，后述的比较例1的各评价结果也参照非专利文献1的记载。
〔杂质的含有率〕
对于第1次烧成后得到的各实施例等的粉末(烧结前)，基于X射线衍射光谱求出由镧和钼以外的元素构成的杂质的含有率。其结果，各实施例等中的杂质的含有率以氧化物换算计均为1％以下。
〔粉末的比表面积〕
对于第1次烧成后得到的各实施例等的粉末(烧结前)，依据JIS R 1626：1996“精细陶瓷粉体的基于气体吸附BET法的比表面积的测定方法”，测定比表面积(m2/g)。其结果，实施例1～3的镧/钼复合氧化物粉末的比表面积均为3.0m2/g。
〔接触角〕
对于各实施例等的烧结体，为了评价对水的拒水性，依据JIS 3257：1999“基板玻璃表面的润湿性试验方法”，测定接触角(°)。测定结果示于表1。
〔使用了粉末XRD的晶相的确定(2)〕
利用玛瑙乳钵和研杵将各实施例等的烧结体粉碎，得到粉碎物。该粉碎物为烧结体的粉碎物，是第2次烧成后得到的粉末。而且，对于得到的各实施例等粉碎物，同样地利用上述粉末X射线衍射法，进行晶相的确定。各实施例等的X射线衍射光谱的结果(烧结后)示于图5～图6，晶相的确定结果示于表1。
〔抗菌性能评价〕
对于实施例3的镧/钼复合氧化物粉末，依据JIS Z 2801：2012并进行抗菌性能评价试验。具体而言，使用金黄色葡萄球菌(Staphylococcus aureus)作为试验菌，求出2小时后、4小时后、和6小时后的抗菌活性值R。抗菌活性值R对各作用时间(2、4或6小时后)分别根据R＝Ut-At求出。Ut为无加工试验品中的各作用时间t(2、4或6小时后)的活菌数的对数值(平均值)，At为加工试验品中的各作用时间t(2、4或6小时后)的活菌数的对数值(平均值)。各试验品的样品数为3个。
需要说明的是，计数将接种菌液的浓度设为2.6×106cfu/ml、接种菌液的接种量设为每个样品0.1ml时的活菌数(cfu/cm2)。
另外，抗菌性能评价中的检测下限(定义)如以下所述。将经过0小时的活菌数设为N0、经过t小时的活菌数设为N的情况下，将该活菌存活率N/N0的常用对数表示为log(N/N0)。时间t为作用时间。虽然抗菌活性值R的值为2.0以上(亦即，R≥2.0)，但是Log(Nt/N0)-Log(Nt+2/N0)≤0.5时，将Log(Nt/N0)和Log(Nt+2/N0)哪个小的值作为检测下限。
抗菌性能评价的结果(达到检测下限的时间、抗菌活性值R)示于表2。需要说明的是，即使达不到检测下限，Log(Nt/N0)-Log(Nt+2/N0)>0.5的情况下，将检测下限设为“6小时以上”，Log(Nt/N0)-Log(Nt+2/N0)≤0.5的情况下，非专利文献1中未记载，因此，在表2中表示为“-”。
〔抗病毒性能评价〕
对于实施例3的镧/钼复合氧化物粉末，依据JIS R 1756：2013“可见光响应型光催化剂、抗病毒(噬菌体)”并进行抗病毒性能评价试验。具体而言，使用噬菌体Qβ(bacteriophage Qβ)作为试验病毒，且求出2小时后、4小时后、和6小时后的抗病毒活性值(暗处)VD。抗病毒活性值(暗处)VD对于各作用时间(2、4或6小时后)、分别根据VD＝Log(UD)-Log(TD)求出。Log(UD)为无加工试验品中的各作用时间(2、4或6小时后)的噬菌体数的对数值(平均值)，Log(TD)为加工试验品中的各作用时间(2、4或6小时后)的噬菌体数的对数值(平均值)。各试验品的样品数为3个。
需要说明的是，计数将接种噬菌体液的浓度设为2.3×107cfu/ml、接种噬菌体液的接种量每个样品设为0.1ml时的噬菌体数(感染值)(cfu/cm2)。
另外，抗病毒性能评价中的检测下限(定义)如以下所述。将经过0小时的噬菌体数(感染值)设为N’0、经过t小时的噬菌体数(感染值)设为N’的情况下，将该噬菌体存活率N’/N’0的常用对数表示为log(N’/N’0)。时间t为作用时间。虽然抗病毒活性值VD的值为3.0以上(亦即，VD≥3.0)，但是Log(N’t/N’0)-Log(N’t+2/N’0)≤0.5时，将Log(N’t/N’0)和Log(N’t+2/N’0)中的较小值作为检测下限。
抗病毒性能评价的结果(达到检测下限的时间、抗病毒活性值VD)示于表2。需要说明的是，即使达不到检测下限，Log(N’t/N’0)-Log(N’t+2/N’0)>0.5的情况下，也将检测下限设为“6小时以上”。
需要说明的是，将关于比较例1的烧结前的粉末、和比较例1的烧结后的粉末(烧结体的粉碎物)的抗菌性能评价的结果(文献值)、和抗病毒性能评价的结果(文献值)也示于表2。
[表1]
[表2]
〔关于晶相等〕
图1为实施例1的镧/钼复合氧化物粉末的各X射线衍射光谱。如图1所示，确认了，实施例1的镧/钼复合氧化物在烧结前的状态下包含La2Mo2O9作为主晶相、包含La2Mo3O12和La2O3作为副晶相。需要说明的是，如图1所示，源自主晶相的峰中不与副主晶相的峰重叠的峰中最大的衍射峰(30.6°)的强度X、与源自副晶相的峰中不与主晶相的峰重叠的峰中最大的衍射峰(29.9°)的强度Y的比率(Y/X)为1.2。
图5为实施例1的烧结体的X射线衍射光谱。如图5所示，确认了，实施例1的镧/钼复合氧化物在烧结后的状态下包含La2Mo2O9作为主晶相、包含La2Mo3O12、La7Mo7O30和La2O3作为副晶相。需要说明的是，如图5所示，源自主晶相的峰中不与副晶相的峰重叠的峰中最大的衍射峰(24.9°)的强度X、与源自副晶相的最大的衍射峰(33.1°)的强度Y的比率(Y/X)为0.06。
图2为实施例2的镧/钼复合氧化物粉末的X射线衍射光谱。如图2所示，确认了，实施例2的镧/钼复合氧化物在烧结前的状态下包含La2Mo2O9作为主晶相、包含La2Mo3O12作为副晶相。需要说明的是，如图2所示，源自主晶相的峰中不与副晶相的峰重叠的峰中最大的衍射峰(30.6°)的强度X、与源自副晶相的峰中不与主晶相的峰重叠的峰中最大的衍射峰(29.9°)的强度Y的比率(Y/X)为0.13。
图6为实施例2的烧结体的X射线衍射光谱。如图6所示，确认了，实施例2的镧/钼复合氧化物在烧结后的状态下包含La2Mo2O9作为主晶相、包含La2Mo3O12和La2O3作为副晶相。
图3为实施例3的镧/钼复合氧化物粉末的各X射线衍射光谱。如图3所示，确认了，实施例3的镧/钼复合氧化物在烧结前的状态下包含La2Mo2O9作为主晶相、包含La2Mo3O12、LaMo2O5和La2O3作为副晶相。需要说明的是，如图3所示，源自主晶相的峰中不与副晶相的峰重叠的峰中最大的衍射峰(30.7°)的强度X、与源自副晶相的峰中不与主晶相的峰重叠的峰中最大的衍射峰(29.9°)的强度Y的比率(Y/X)为0.08。
图7为实施例3的烧结体的X射线衍射光谱。如图7所示，确认了，实施例3的镧/钼复合氧化物在烧结后的状态下包含La2Mo2O9作为主晶相、包含La6MoO12和La2O3作为副晶相。
图4为比较例2的镧/钼复合氧化物粉末的X射线衍射光谱。如图4所示，确认了，比较例2的镧/钼复合氧化物在烧结前的状态下包含LaMo0.98O4.07作为主晶相、包含La6Mo8O33和La2O3作为副晶相。
〔关于接触角〕
如表1所示，实施例1～3的烧结体与水的接触角为103°。如此确认了，实施例1～3的烧结体与比较例1的烧结体同样地为拒水性。
〔关于抗菌/抗病毒性能〕
如表2所示，抗菌性评价和抗病毒性评价中，实施例1的镧/钼复合氧化物粉末均在2小时内达到检测下限。于此相对，比较例1的粉末(烧结前的粉末)的情况下，抗菌性评价和抗病毒性评价中，均在4小时内达到检测下限(参照非专利文献1)。如此确认了，与比较例1相比，实施例1的镧/钼复合氧化物粉末具备优异的抗菌性和抗病毒性。
Claims (5)
1.一种镧/钼复合氧化物，其将La2Mo2O9作为主晶相、将所述La2Mo2O9以外的镧/钼复合氧化物作为副晶相。
2.根据权利要求1所述的镧/钼复合氧化物，其中，所述副晶相包含选自由La2Mo3O12、La6MoO12、La7Mo7O30、La2Mo4O15、La2MoO6、La4MoO9和LaMo2O5组成的组中的至少1种。
3.根据权利要求1或2所述的镧/钼复合氧化物，其中，通过粉末X射线衍射法得到的X射线衍射光谱中，源自所述主晶相的衍射峰中不与副晶相的峰重叠的峰中最大的衍射峰的强度X、与源自所述副晶相的衍射峰中不与主晶相的峰重叠的峰中最大的衍射峰的强度Y的比率为Y/X<1。
4.一种抗菌性烧结体，其是使权利要求1～3中任一项所述的镧/钼复合氧化物烧结而成的。
5.一种抗病毒性烧结体，其是使权利要求1～3中任一项所述的镧/钼复合氧化物烧结而成的。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020106727A JP2022001542A (ja) | 2020-06-22 | 2020-06-22 | ランタン・モリブデン複合酸化物、抗菌性焼結体及び抗ウイルス性焼結体 |
| JP2020-106727 | 2020-06-22 | ||
| PCT/JP2021/023547 WO2021261475A1 (ja) | 2020-06-22 | 2021-06-22 | ランタン・モリブデン複合酸化物、抗菌性焼結体及び抗ウイルス性焼結体 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115551807A true CN115551807A (zh) | 2022-12-30 |
Family
ID=79244275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180033977.1A Pending CN115551807A (zh) | 2020-06-22 | 2021-06-22 | 镧/钼复合氧化物、抗菌性烧结体和抗病毒性烧结体 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20230212021A1 (zh) |
| EP (1) | EP4169878A1 (zh) |
| JP (1) | JP2022001542A (zh) |
| KR (1) | KR20220163436A (zh) |
| CN (1) | CN115551807A (zh) |
| WO (1) | WO2021261475A1 (zh) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7469153B2 (ja) | 2020-06-22 | 2024-04-16 | 日本特殊陶業株式会社 | ランタン・モリブデン複合酸化物粉末の製造方法及び焼結体の製造方法 |
| KR20230144614A (ko) * | 2021-04-08 | 2023-10-16 | 니테라 컴퍼니 리미티드 | 세라믹스 재료, 압분체, 소결체, 및 물품 |
| WO2023218928A1 (ja) * | 2022-05-09 | 2023-11-16 | 日本特殊陶業株式会社 | 貼付型フィルム |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003301114A (ja) * | 2002-04-09 | 2003-10-21 | Asahi Kasei Corp | 複合体 |
| CN1812837A (zh) * | 2003-08-08 | 2006-08-02 | 株式会社丰田中央研究所 | 有可见光活性的光催化剂体、其原料及其制造方法 |
| US20110239825A1 (en) * | 2010-03-31 | 2011-10-06 | National Institute Of Advanced Industrial Science And Technology | Metal component collection agent and method for collecting metal component |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2807421B1 (fr) * | 2000-04-07 | 2002-07-12 | Rhodia Terres Rares | Composes derives de la2mo2o9 et leur utilisation comme conducteurs ioniques |
| FR2897350B1 (fr) * | 2006-02-14 | 2008-05-16 | Centre Nat Rech Scient | Preparation d'un compose comprenant l'association de deux phases cristallines |
| AT12981U1 (de) * | 2006-11-13 | 2013-03-15 | Josef Peter Dr Guggenbichler | Stoff mit antimikrobieller wirkung |
-
2020
- 2020-06-22 JP JP2020106727A patent/JP2022001542A/ja active Pending
-
2021
- 2021-06-22 EP EP21830284.2A patent/EP4169878A1/en active Pending
- 2021-06-22 CN CN202180033977.1A patent/CN115551807A/zh active Pending
- 2021-06-22 WO PCT/JP2021/023547 patent/WO2021261475A1/ja unknown
- 2021-06-22 US US18/001,087 patent/US20230212021A1/en active Pending
- 2021-06-22 KR KR1020227038315A patent/KR20220163436A/ko unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003301114A (ja) * | 2002-04-09 | 2003-10-21 | Asahi Kasei Corp | 複合体 |
| CN1812837A (zh) * | 2003-08-08 | 2006-08-02 | 株式会社丰田中央研究所 | 有可见光活性的光催化剂体、其原料及其制造方法 |
| US20110239825A1 (en) * | 2010-03-31 | 2011-10-06 | National Institute Of Advanced Industrial Science And Technology | Metal component collection agent and method for collecting metal component |
Non-Patent Citations (4)
| Title |
|---|
| GAËTAN BUVAT ET AL.: ""Reduction Kinetics of La2Mo2O9 and Phase Evolution during Reduction and Reoxidation"", 《 INORGANIC CHEMISTRY》, pages 2522 * |
| HOUSSEM SELLEMI ET AL.: ""Synthesis of La2Mo2O9 powders with nanodomains using polyol procedure"", 《CERAMICS INTERNATIONAL》, pages 8853 - 8859 * |
| JEAN -PAUL FOURNIER ET AL.: "Etude des systemes La2O3-MoO3, Y2O3-MoO3 et des phases Ln6MoO12 "", 《BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE》, 31 December 1970 (1970-12-31), pages 4277 - 4283 * |
| 黄应龙等: ""新型固体电解质La2Mo2O9的制备及其性能"", 《中国稀土学报》, 29 February 2004 (2004-02-29), pages 113 - 118 * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20220163436A (ko) | 2022-12-09 |
| EP4169878A1 (en) | 2023-04-26 |
| WO2021261475A1 (ja) | 2021-12-30 |
| US20230212021A1 (en) | 2023-07-06 |
| JP2022001542A (ja) | 2022-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115551807A (zh) | 镧/钼复合氧化物、抗菌性烧结体和抗病毒性烧结体 | |
| JP7469153B2 (ja) | ランタン・モリブデン複合酸化物粉末の製造方法及び焼結体の製造方法 | |
| KR102181024B1 (ko) | 극초단파 안테나에서 사용하기 위한 Mo-도핑된 Co2Z-형 페라이트 복합 물질 | |
| CN112533885A (zh) | 复合氧化物陶瓷及其制造方法、以及物品 | |
| Bendahhou et al. | Relationship between structural and dielectric properties of Zn-substituted Ba 5 CaTi 2− x Zn x Nb 8 O 30 tetragonal tungsten bronze | |
| JPH0355429B2 (zh) | ||
| JP2004155601A (ja) | 圧電磁器組成物 | |
| CN106588007B (zh) | 一种高品质因数的无铅压电陶瓷 | |
| CN113354409A (zh) | 微波介质陶瓷及其制备方法 | |
| JP6488602B2 (ja) | 電波吸収体用のフェライト組成物および電波吸収体 | |
| WO2022215707A1 (ja) | セラミックス材料、圧粉体、焼結体、及び物品 | |
| US20240182322A1 (en) | Ceramic material, green compact, sintered compact, and article | |
| CN102285794A (zh) | B位复合钙钛矿结构化合物组成的无铅压电陶瓷 | |
| EP3885327B1 (en) | Calcined ferrite, and sintered ferrite magnet and its production method | |
| CN108864621A (zh) | 一种陶瓷/聚合物柔性高介电复合材料及其制备方法 | |
| WO2020261715A1 (ja) | 有機物分解用触媒および有機物分解装置 | |
| JPH0832559B2 (ja) | ペロブスカイト型化合物の無機微粉体の製造方法 | |
| US11370712B2 (en) | Zinc oxide varistor and method for manufacturing same | |
| WO2024004762A1 (ja) | Ｃｅ－Ｍｏ系複合酸化物セラミックス、圧粉体、焼結体、及び物品 | |
| JP2001010867A (ja) | セラミック原料造粒粉末の製造方法 | |
| JP2024036988A (ja) | 材料、圧粉体、焼結体、及び物品 | |
| WO2023218928A1 (ja) | 貼付型フィルム | |
| JP2023030326A (ja) | 抗菌抗ウイルス用及び防カビ用材料 | |
| JP4678569B2 (ja) | 電子デバイス用誘電体磁器組成物 | |
| Arashi et al. | Dielectric ceramic composition comprising Bi 2 O 3, ZnO, Nb 2 O 5 and V 2 O 5, dielectric ceramic, electronic device, and communication device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |