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    • 3. 发明授权
    • Photocatalyst, method for preparing the same, and production of hydrogen
using the same
    • 光催化剂,其制备方法和使用其制备氢气
    • US5865960A
    • 1999-02-02
    • US793354
    • 1997-02-24
    • Dae Chul ParkKyeong Hwan ChungDuck Rye Chang
    • Dae Chul ParkKyeong Hwan ChungDuck Rye Chang
    • C01B3/16B01J23/20B01J35/02C01B3/06C01B13/02C01B3/00B01J23/02B01J23/16
    • C01B3/065B01J23/20C01B13/0207Y02E60/362
    • A photocatalyst for the preparation of hydrogen consisting of a catalytically active ingredient, cesium (Cs), impregnated in a support, K.sub.4 Nb.sub.6 O.sub.17, represented by Formula I as follows:Cs (a) /K.sub.4 Nb.sub.6 O.sub.17wherein a is an amount of the catalytically active ingredient impregnated in the support and has a value of between 0.05 to 5.0% by weight based on total weight of the support. Such a catalyst is prepared by combining K.sub.2 CO.sub.3 with Nb.sub.2 O.sub.5 in a mole ratio of 2:3; sintering the combination at a temperature of about 1,200.degree.-1,300.degree. C. to produce the support, K.sub.4 Nb.sub.6 O.sub.17 ; and impregnating the support with the catalytically active ingredient, Cs. Hydrogen is efficiently produced by illuminating an ultraviolet light on an aqueous solution added with an oxygen-containing organic promoter at a reaction temperature of about 15.degree.-80.degree. C., under a reaction pressure of about 0.1-3.0 atm, in the presence of the photocatalyst.
    • PCT No.PCT / KR95 / 00110 Sec。 371日期1997年2月24日 102(e)1997年2月24日PCT PCT 1995年8月29日PCT公布。 公开号WO96 / 06675 日期:1996年3月7日制备由催化活性成分铯(Cs)组成的氢的光催化剂,浸渍在载体中的K4Nb6O17,式I表示如下:Cs(a)/ K4Nb6O17,其中a为 催化活性成分浸渍在载体中,并且其值为载体总重量的0.05-5.0重量%。 这种催化剂是通过将K2CO3与Nb2O5以2:3的摩尔比组合而制备的; 在约1200〜-300℃的温度下烧结组合物,生成载体K4Nb6O17; 并用催化活性成分Cs浸渍载体。 通过在约15〜80℃的反应温度下,在约0.1-3.0大气压的反应压力下,在加入含氧有机助催化剂的水溶液中,在存在 光催化剂。