254nm UV TiO 2 20nm :Sr 5 Ta 4 O 15 3
4
KEY-1 KEY-2 (Ti,Nb,Ta) 5
KEY-1 KEY-2 6
7 NiO/ Sr 2 Ta 2 O 7 mmol h -1 g -1 20 15 10 5 H 2 O 2 H 2 O 2 0 0 2 4 6 8 10 12
NiO/Sr 2 Ta 2 O 7 The synthesis of photocatalysts using polymerizable complex method M.Kakihana and K.Domen, MRS Bulletin 25 (2000) p.27. Polymerizable complex synthesis of pure Sr 2 Nb x Ta 2-x O 7 solid solutions with high photocatalytic activities for water decompostion into H 2 and O 2 M.Yoshino et al. Chem. Mater. 14 (2002) p.3369. 8
(- ') Bi 2 Sr 2 Ca 0.8 Y 0.2 Cu 2 O 8.2 1.2 1 0.8 0.6 0.4 0.2 0 12h + 3 x 24 h 77K 2h + 10 h 9-0.2 0 20 40 60 80 100 120 / K
43 1995 p146 53 2007 1 Synthesis and characteristics of complex multicomponent oxides prepared by polymer complex method M.Kakihana and M.Yoshimura, Bulletin of the Chemical Society of Japan 72 (1999) p.1427. 10
11 Step 1 : HOOC HOOC OH COOH : HO OH A B A A B B B A B
12
Step 2 13 HOOC OH OH HOOC OH OH HOOC COOH HO HOOC COOH HO A B A A B B B A B Step 3 ABO 3
14
15
16
A=Y, La, Eu, Ce, Nd, Al, Ga, etc. 17 B=Ti, Zr, Si, Mn, etc. C=V, Nb, Ta, P, etc. Ex. 278 nm Ex. 265nm Em. 518 nm Em. 612 nm
18 Use of polymerizable complex method for synthesis of novel phosphor materials K.Watanabe et al. Proceedings for 13 th International Workshop on Inorganic and Organic Electroluminescence and 2006 International Conference on Science and Technology of Emissive Displays and Lighting, (2006) P.356.
19 0.25
Y 2 O 2 S:Eu 3+ 20
21
22 ph ph 0.02mol/l 0.5mol/l Y 2 O 2 S:Eu 3+
23
24 PG HGY 2 O 2 S:Eu 3+ 100 300nm 0.1-0.3 70-110 Synthesis of high brightness submicron Y 2 O 2 S red phosphor powders by complex homogeneous precipitation method Y.Kawahara et al. Chem. Mater., 18 (2006) p.6303. Preparation of submicron Y 2 O 2 S red phosphor powders with high emission intensity by complex homogeneous precipitation method V.Petrykin et al. Proceedings for 13th International Workshop on Inorganic and Organic Electroluminescence and 2006 International Conference on Science and Technology of Emissive Displays and Lighting, (2006) P.273.
25 3 m 21 m 8 m 0.5 m m 2.4 m
26
27 3 4 5 6 7 Sc Ti V Cr Mn Y Zr Nb Mo Tc 57-71 Hf Ta W Re
28
29
3 (2000) P.25. 56 (2005) P.208. 30
31 ph 6
32
33
ph ph 34
H2O2 NH3 36
36 Structure and stability of water-soluble (NH 4 ) 8 [Ti 4 (C 6 H 4 O 7 ) 4 (O 2 ) 4 ]8H 2 O M.Kakihana et al. Inorg. Chem. 40 (2001) p.891. Chelating of titanium by lactic acid In the water-soluble diammonium tris (2- hydroxypropionato) titanate(iv) M.Kakihana et al. Inorg. Chem. 43 (2004) p.4546. A water-soluble titanium complex for selective synthesis of nanocrystalline brookite, rutile and anatase by a hydrothermal method K.Tomita et al. Angewandte Chemie, Int. Ed. 45 (2006) p.2378. Synthesis and structure of new water soluble and stable tantalum compound: ammonium tetralactatodiperoxo- -oxo-dititanate(v) V.Petrykin et al. Inorg.Chem. 45 (2006) p.9251.
37 Ti Kakihana, Tomita et al. Inorg. Chem. 43 (2004) 4546.
CH 3 -CH(OH)COOH OH H COOH H [CH 3 CH(O)COO] 2- NH 4+ 38
39 1 mm 0.5 mm [Ti4(C6H4O7)4(O2)4] 8- Inorg. Chem. 40 (2001) 891 [Ti4(C2H2O3)4 (C2H3O3)2O2] 6- Ang. Chem. Int. Ed. 45 (2006) 2378
[O 2 ] 2- [O 2 ] 2- Ti-O-Ti 40
41 YNbO 4 NaTaO 3 TiO 2 TiO 2
Material Stage, 3 (2004) p.66. 5 (2005) p.37. 57(2006)p.13. 42
43 a.u. 126% 109% 254nm UV YVO 4 :Eu 3+ NiO/NaTaO 3 H 2 O H 2 + 1/2O 2 h 580 590 600 610 620 630 640 /nm
YNbO 4 :Eu 3+ YVO 4 :Eu 3+ NaTaO 3 NiO/NaTaO 3 mmol 44
45 (NH 4 ) 8 [Ti 4 (O 2 ) 4 CA 4 ]
500 15 300nm 46
47
48 A new water-soluble ammonium citratoperoxotitanate as an environmentally beneficial precursor for TiO 2 thin film and RuO 2 /BaTi 4 O 9 photocatalysts M.Tada et al. Chem. Mater., 14 (2002) p.2845. Synthesis of SrTiO 3 from aqueous solution using lactate titanium complex K.Tomita et al. Trans. Mater. Res. Soc. Jpn., 28 (2003) p.377. 57(2006)p.13.
49 200 24 20nm 10 15nm or 200nm 50nm 150nm
ph ph TiO 2 TiO 2 200 24 50
51 50nm 150nm Intensity / arb. units ph10 HN 3 aq ph6 100nm 2 / degrees, CuK 50nm 150nm 200nm
ph ph 52 Hydrothermal synthesis of nanosized titania photocatalysts using novel water- soluble titanium complexes M.Kobayashi et al. Solid State Phenomena, 124-126(2006) p.723. A water-soluble titanium complex for selective synthesis of nanocrystalline brookite, rutile and anatase by a hydrothermal method K.Tomita et al. Angewandte Chemie, Int. Ed. 45 (2006) p.2378.
53 Ti 1 2 3 TAS FINE 1 NH 4 OH 2 H 2 O 2 3
54
55
56
Si-Bi 4 T 3 O 12 57 Pt Bi 4 Ti 3 O 12 Si 1 m SEM
58
59
60
61
vs vs vsvs 62