Title:
INTERLAYER CROSSLINKED BODY OF LAYERED TITANIUM OXIDE AND PHOTOCATALYST
Document Type and Number:
Japanese Patent JP3249776
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a compd. having a large specific surface area and useful as a photocatalyst by intercalating an oxide selected from SiO2, Al2O3 and TiO2 into the interlayers of a specified layered titanium oxide and carrying out interlayer crosslinking.
SOLUTION: One or more oxides selected from SiO2, Al2O3 and TiO2 are intercalated into the interlayers of a layered titanium oxide represented by the formula Ti3-xMxO7 or Ti4-xMxO9 and interlayer crosslinking is carried out. In the formulae, M is Ti, Mn, Fe, Co, Ni or Cu and (x) is 0-0.5. The crosslinked body is produced as follows; an alkali metallic salt of a layered titanium oxide, preferably Na or K salt is treated with an acid such as hydrochloric acid to protonate interlayer alkali metallic ions by substitution by H ions, an org. amine such as hexylamine is intercalated to carry out interlayer expansion and then one or more of alkoxides or hydroxides of Si, Al and Ti convertible into SiO2, Al2O3 and TiO2 by heating are intercalated and calcined.
Inventors:
Masato Machida
Junichi Yabunaka
Hideki Taniguchi
Takeshi Kijima
Junichi Yabunaka
Hideki Taniguchi
Takeshi Kijima
Application Number:
JP7920398A
Publication Date:
January 21, 2002
Filing Date:
March 26, 1998
Export Citation:
Assignee:
Otsuka Chemical Co., Ltd.
International Classes:
B01J21/06; B01J23/34; B01J23/656; B01J23/70; B01J23/89; B01J35/02; C01G23/04; (IPC1-7): C01G23/04; B01J21/06; B01J23/34; B01J23/656; B01J23/70; B01J23/89; B01J35/02
Domestic Patent References:
| JP11180715A | ||||
| JP11139826A |
Attorney, Agent or Firm:
Contents Makoto (1 person outside)
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