JP5461099B2 - 新規な露出結晶面を有するルチル型二酸化チタンナノ粒子とその製造方法 - Google Patents
新規な露出結晶面を有するルチル型二酸化チタンナノ粒子とその製造方法 Download PDFInfo
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- JP5461099B2 JP5461099B2 JP2009182563A JP2009182563A JP5461099B2 JP 5461099 B2 JP5461099 B2 JP 5461099B2 JP 2009182563 A JP2009182563 A JP 2009182563A JP 2009182563 A JP2009182563 A JP 2009182563A JP 5461099 B2 JP5461099 B2 JP 5461099B2
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- titanium dioxide
- rutile
- type titanium
- exposed crystal
- crystal
- Prior art date
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims description 142
- 239000013078 crystal Substances 0.000 title claims description 53
- 239000002105 nanoparticle Substances 0.000 title claims description 38
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000004408 titanium dioxide Substances 0.000 title description 52
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 25
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 25
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 25
- 150000002894 organic compounds Chemical class 0.000 claims description 22
- 239000011941 photocatalyst Substances 0.000 claims description 20
- 238000007254 oxidation reaction Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 230000003647 oxidation Effects 0.000 claims description 11
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 11
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 9
- 239000012736 aqueous medium Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 9
- 150000002978 peroxides Chemical class 0.000 claims description 9
- 229910001882 dioxygen Inorganic materials 0.000 claims description 8
- 238000010335 hydrothermal treatment Methods 0.000 claims description 8
- 229910001508 alkali metal halide Inorganic materials 0.000 claims description 4
- 150000008045 alkali metal halides Chemical class 0.000 claims description 4
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 4
- YONPGGFAJWQGJC-UHFFFAOYSA-K titanium(iii) chloride Chemical compound Cl[Ti](Cl)Cl YONPGGFAJWQGJC-UHFFFAOYSA-K 0.000 claims description 4
- 239000002159 nanocrystal Substances 0.000 claims 1
- 235000010215 titanium dioxide Nutrition 0.000 description 52
- 229910010413 TiO 2 Inorganic materials 0.000 description 20
- 150000001875 compounds Chemical class 0.000 description 16
- 230000001699 photocatalysis Effects 0.000 description 13
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 12
- 229920001477 hydrophilic polymer Polymers 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000007423 decrease Effects 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- 230000001590 oxidative effect Effects 0.000 description 8
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 150000003609 titanium compounds Chemical class 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 4
- 150000001491 aromatic compounds Chemical class 0.000 description 4
- 150000004820 halides Chemical class 0.000 description 4
- 125000005842 heteroatom Chemical group 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000006798 recombination Effects 0.000 description 4
- 238000005215 recombination Methods 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- -1 titanium alkoxide Chemical class 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 229920003081 Povidone K 30 Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 2
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 2
- 238000004887 air purification Methods 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 2
- 150000001728 carbonyl compounds Chemical class 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 150000001993 dienes Chemical class 0.000 description 2
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 238000013032 photocatalytic reaction Methods 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 125000004434 sulfur atom Chemical group 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- QDZRBIRIPNZRSG-UHFFFAOYSA-N titanium nitrate Chemical compound [O-][N+](=O)O[Ti](O[N+]([O-])=O)(O[N+]([O-])=O)O[N+]([O-])=O QDZRBIRIPNZRSG-UHFFFAOYSA-N 0.000 description 2
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 2
- GGQQNYXPYWCUHG-RMTFUQJTSA-N (3e,6e)-deca-3,6-diene Chemical compound CCC\C=C\C\C=C\CC GGQQNYXPYWCUHG-RMTFUQJTSA-N 0.000 description 1
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 1
- KJTMISGJGGEMPR-UHFFFAOYSA-N 4-methyl-3,8-dioxatricyclo[5.1.0.02,4]oct-5-ene Chemical compound C12OC2C=CC2(C)C1O2 KJTMISGJGGEMPR-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920003080 Povidone K 25 Polymers 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- ILNQBWPWHQSSNX-UHFFFAOYSA-N [hydroperoxy(diphenyl)methyl]benzene Chemical compound C=1C=CC=CC=1C(C=1C=CC=CC=1)(OO)C1=CC=CC=C1 ILNQBWPWHQSSNX-UHFFFAOYSA-N 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 150000001241 acetals Chemical class 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000004423 acyloxy group Chemical group 0.000 description 1
- VLLNJDMHDJRNFK-UHFFFAOYSA-N adamantan-1-ol Chemical compound C1C(C2)CC3CC2CC1(O)C3 VLLNJDMHDJRNFK-UHFFFAOYSA-N 0.000 description 1
- FOWDOWQYRZXQDP-UHFFFAOYSA-N adamantan-2-ol Chemical compound C1C(C2)CC3CC1C(O)C2C3 FOWDOWQYRZXQDP-UHFFFAOYSA-N 0.000 description 1
- IYKFYARMMIESOX-UHFFFAOYSA-N adamantanone Chemical compound C1C(C2)CC3CC1C(=O)C2C3 IYKFYARMMIESOX-UHFFFAOYSA-N 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 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
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000010415 colloidal nanoparticle Substances 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 150000001923 cyclic compounds Chemical class 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 150000001925 cycloalkenes Chemical class 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000445 field-emission scanning electron microscopy Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000002373 hemiacetals Chemical class 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000007248 oxidative elimination reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 description 1
- 238000005502 peroxidation Methods 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000011970 polystyrene sulfonate Substances 0.000 description 1
- 229960002796 polystyrene sulfonate Drugs 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- 150000003555 thioacetals Chemical class 0.000 description 1
- 125000002813 thiocarbonyl group Chemical group *C(*)=S 0.000 description 1
- 150000003573 thiols Chemical group 0.000 description 1
- 229910000348 titanium sulfate Inorganic materials 0.000 description 1
- UBZYKBZMAMTNKW-UHFFFAOYSA-J titanium tetrabromide Chemical compound Br[Ti](Br)(Br)Br UBZYKBZMAMTNKW-UHFFFAOYSA-J 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B33/00—Oxidation in general
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
-
- 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
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/613—10-100 m2/g
-
- 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
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Description
本発明の他の目的は、有機物質を効率よく酸化できる新規なルチル型二酸化チタンナノ粒子からなる光触媒、及び該光触媒を用いた有機化合物の酸化方法を提供することにある。
テフロン(登録商標)塗装されたオートクレーブに、TiCl3(0.15M)、NaCl(5M)、及びPVP(商品名「PVP−K30」、分子量:40000、0.25mM)を含む50mL水溶液を仕込み、180℃のオーブンで10時間、水熱処理を行った。得られた反応物を遠心分離し、脱イオン水でリンスし、真空乾燥機(バキュームオーブン)で乾燥した。
その後、表面に残存または吸着した有機化合物を500Wの超高圧水銀ランプ用光源装置(商品名「SX−UI501UO」、ウシオ電機(株)製)を使用して24時間、紫外線照射して取り除いた。続いて、減圧下、60℃で6時間乾燥させてTiO2(SH5−0.25PVP)を得た。
PVPの濃度を0.25mMから0.1mM(実施例2)、0.4mM(実施例3)、0.5mM(実施例4)に変更した以外は実施例1と同様にしてそれぞれTiO2(SH5−0.1PVP、SH5−0.4PVP、SH5−0.5PVP)を得た。
PVPを使用しなかった以外は実施例1と同様にしてTiO2(SH5−0PVP)を得た。
実施例1で得られたTiO2(SH5−0.25PVP)水溶液(2g/L)に2−プロパノール(0.52M)とH2PtCl6・6H2O(1mM)を加え懸濁液とした。得られた懸濁液から窒素ガスを完全に除去し、その後、500Wの超高圧水銀ランプ用光源装置(商品名「SX−UI501HQ」、ウシオ電機(株)製)を使用して紫外線を24時間照射した(1mW/cm2)。紫外線照射によりTiO2粉末の色は白から灰色に変化した。このことから、Ptが光析出したことがわかる。その後、懸濁液を遠心分離し、蒸留水で洗浄し、減圧下、70℃で3時間乾燥してPt担持TiO2粉末を得た。
実施例1〜4及び比較例1で得られたTiO2の相同定にはXRD(粉末X線回折装置、商品名「JDX3500」、JEOL製、CuーKα、λ=1.5405Å)を使用した。微細構造は透過型電子顕微鏡(TEM、商品名「H−9000NAR」、日立製)及び電界放射型走査電子顕微鏡(FE−SEM、商品名「JSM−6701FONO」、JEOL製)を使用して確認した。図3より、PVP濃度の上昇に従ってピークが強く表れていることから、PVP濃度依存的にルチル型二酸化チタンナノ粒子の結晶化度が上昇していることがわかる。図4及び図5より、PVP濃度の上昇に従って新規露出面(001)の露出面積が大きくなり、それに伴って(111)面が小さくなっていることがわかる。
平均粒径(d)=0.9λ/βcosθ
(式中、λは使用したX線の波長を示し、βは回折プロファイルの半値幅、2θは回折角を示す)
さらに、比表面積は窒素吸着測定装置(商品名「Autosorb−1」、Quantachrome社製)を使用し、Brunauer−Emmett−Teller法(BET法)により測定した。
実施例1〜4及び比較例1で得られたTiO2の光触媒能は、気相にてアセトアルデヒドまたはトルエンを酸化し、生成するCO2量を測定することにより評価した。
テドラーバッグ(アズワン(株)社製)を反応容器として使用した。実施例1〜4及び比較例1で得られたTiO2100gをそれぞれガラス製皿に広げ、反応容器の中に入れ、500ppmのアセトアルデヒド飽和ガス(または、100ppmのトルエン飽和ガス)を反応容器に吹き込んだ。ガスとアセトアルデヒド(または、トルエン)が平衡に達した後、室温(25℃)で光照射を行った。光源には500Wのキセノンランプ用光源装置(商品名「SX−UI501XQ」、ウシオ電機(株)製)を使用し、UV−35フィルターを使用して350nmより短い波長の光線を遮断した。さらに、ファインステンレス製のメッシュを光量調節用フィルターとして使用して光量を30mW/cm2に調整した。
光照射開始後、CO2の生成量をメタナイザーが付属した水素炎イオン化検出器付きガスクロマトグラフ(商品名「GC−8A」、「GC−14A」、島津製作所製)を使用して測定した(図6、7)。
Claims (4)
- 露出結晶面(001)(110)(111)を有するロッド状ルチル型酸化チタンナノ粒子。
- 三塩化チタン及び/又は四塩化チタンをポリビニルピロリドン及びアルカリ金属ハロゲン化物の存在下、水性媒体中で水熱処理して、露出結晶面(001)(110)(111)を有するロッド状ルチル型酸化チタンナノ粒子を得ることを特徴とするルチル型酸化チタンナノ粒子の製造法。
- 露出結晶面(001)(110)(111)を有するロッド状ルチル型酸化チタンナノ粒子からなる光触媒。
- 露出結晶面(001)(110)(111)を有するロッド状ルチル型酸化チタンナノ粒子からなる光触媒の存在下、被酸化部位を有する有機化合物を光照射下に分子状酸素又は過酸化物により酸化することを特徴とする有機化合物の酸化方法。
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JP2009182563A JP5461099B2 (ja) | 2009-08-05 | 2009-08-05 | 新規な露出結晶面を有するルチル型二酸化チタンナノ粒子とその製造方法 |
EP10806329.8A EP2463237A4 (en) | 2009-08-05 | 2010-07-13 | RUTILE TITANIUM DIOXIDE NANOPARTICLES HAVING EACH NEW EXPOSED CRYSTALLINE PLANE AND PROCESS FOR PREPARING THE SAME |
CN2010800339928A CN102448886A (zh) | 2009-08-05 | 2010-07-13 | 具有新的露出结晶面的金红石型二氧化钛纳米粒子及其制造方法 |
US13/389,097 US8758574B2 (en) | 2009-08-05 | 2010-07-13 | Rutile titanium dioxide nanoparticles each having novel exposed crystal face and method for producing same |
PCT/JP2010/062131 WO2011016329A1 (ja) | 2009-08-05 | 2010-07-13 | 新規な露出結晶面を有するルチル型二酸化チタンナノ粒子とその製造方法 |
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EP2483204B1 (en) * | 2009-10-08 | 2018-01-17 | The Regents of The University of California | Methods of making metal-oxides and uses thereof for water treatment and energy applications |
JP5711582B2 (ja) * | 2011-03-28 | 2015-05-07 | 株式会社ダイセル | 光触媒、及びそれを用いた有機化合物の酸化方法 |
JP5926116B2 (ja) * | 2011-05-18 | 2016-05-25 | 株式会社ダイセル | 遷移金属化合物担持酸化チタンの製造方法 |
CN103582526B (zh) * | 2011-06-07 | 2016-04-27 | 株式会社大赛璐 | 光触媒涂膜及其制造方法 |
US9586822B2 (en) | 2011-10-10 | 2017-03-07 | The Regents Of The University Of California | Size and morphologically controlled nanostructures for energy storage |
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TWI520766B (zh) * | 2012-08-27 | 2016-02-11 | 國立清華大學 | 奈米粒子轉相方法 |
JP2014083504A (ja) * | 2012-10-24 | 2014-05-12 | Ohara Inc | 光触媒部材及びその製造方法 |
CN103086424B (zh) * | 2013-02-28 | 2015-12-09 | 天津工业大学 | 一步合成混相和暴露高活性面二氧化钛的方法 |
US9440221B2 (en) * | 2013-03-15 | 2016-09-13 | Daicel Corporation | Titanium oxide dispersion liquid, titanium oxide coating liquid, and photocatalyst coating film |
US9567236B2 (en) * | 2013-03-15 | 2017-02-14 | Cristal Inorganic Chemicals Switzerland Ltd. | Rutile titanium dioxide nanoparticles and ordered acicular aggregates of same |
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CN103230787A (zh) * | 2013-04-18 | 2013-08-07 | 中国科学院长春光学精密机械与物理研究所 | 一种{001}面暴露锐钛矿相二氧化钛微球光催化剂的制备方法 |
WO2015025941A1 (ja) * | 2013-08-23 | 2015-02-26 | 国立大学法人東北大学 | 水共存下での有機物の処理方法、接触反応装置及びこれを含むシステム、並びに低温源からの廃熱回収方法 |
CN103657625B (zh) * | 2013-12-26 | 2015-09-02 | 湛江师范学院 | 一种暴露高能晶面{001}金红石型硼掺杂二氧化钛微球的制备方法 |
CN104192896B (zh) * | 2014-08-20 | 2016-02-03 | 北京师范大学 | 一种TiO2纳米晶及其合成方法 |
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MY181742A (en) | 2015-01-30 | 2021-01-06 | Celanese Int Corp | Processes for producing acetic acid |
US10413840B2 (en) | 2015-02-04 | 2019-09-17 | Celanese International Coporation | Process to control HI concentration in residuum stream |
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EP3427826B1 (en) | 2016-03-08 | 2020-11-25 | Japan Science and Technology Agency | Catalyst and use of same |
CN112062152B (zh) * | 2020-08-17 | 2022-06-07 | 湖北工业大学 | 一种高能晶面暴露的二氧化钛介孔微球及其制备方法 |
CN112844357B (zh) * | 2020-12-08 | 2022-08-26 | 河北师范大学 | 一种二氧化钛包覆层状氧化物二维核壳材料的制备方法 |
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CN116081684A (zh) * | 2022-12-21 | 2023-05-09 | 河北工业大学 | 一种富氧空位的主暴露{101}晶面二氧化钛材料、制备方法及其应用 |
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