发明名称 |
PHOTOCATALYST, METHOD FOR PREPARING THE SAME, AND PRODUCTION OF HYDROGEN USING THE SAME |
摘要 |
There is disclosed a photocatalyst for the preparation of hydrogen consisting of a catalytically active ingredient cesium (Cs) impregnated in a support K4Nb6O17, represented by the formula (I): Cs(a)/K4Nb6O17, wherein a in parenthesis denotes the amout of the catalytically active ingredient Cs impregnated in the support K4Nb6O17 and has a value of 0.05 to 5.0 % by weight based on the total weight of the support. It is prepared by combining K2CO3 with Nb2O5 in a mole ratio of 2:3 of K2CO3:Nb2O5 sintering the combination at a temperature of about 1,200 to 1,300 ·C, to give K4Nb6O17, a support; and impregnating the support with a catalytically active inorganic ingredient Cs. Hydrogen is efficiently produced by illuminating an ultraviolet on an aqueous solution added with an oxygen-containing organic promoter at a reaction temperature of about 15 to 80 ·C under a reaction pressure of about 0.1 to 3 atm, in the presence of the photocatalyst.
|
申请公布号 |
CA2198777(C) |
申请公布日期 |
2000.01.18 |
申请号 |
CA19952198777 |
申请日期 |
1995.08.29 |
申请人 |
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY |
发明人 |
PARK, DAE CHUL;CHUNG, KYEONG HWAN;CHANG, DUCK RYE |
分类号 |
C01B3/16;B01J23/20;B01J35/02;C01B3/06;C01B13/02;(IPC1-7):B01J23/04;B01J37/02 |
主分类号 |
C01B3/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|