Oxysulfide photocatalyst for decomposition of water by...

Details Oxysulfide photocatalyst for decomposition of water by... Oxysulfide photocatalyst for decomposition of water by...

2005-01-04

2005-01-04

Bell, Mark L. (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Sulfur or compound containing same

C502S222000, C502S223000, C502S302000, C252S30160S, C252S30140S, C423S518000

Reexamination Certificate

active

06838413

ABSTRACT:
A photocatalyst which comprises an oxysulfide containing at least one transition metal; a preferable photocatalyst which also comprises a rare earth element such as Sm in addition to the above and wherein the transition metal is at least one selected from the group consisting of Ti and Nb; a more preferable photocatalyst which further comprises a promoter comprising a transition metal such as Pt loaded on each of the above photocatalyst; and a catalyst for use in the decomposition of water by a light which comprises one of the above oxysulfide photocatalysts.

REFERENCES:
patent: 3948798 (1976-04-01), Ferri et al.
Ishikawa et al., “Novel Synthesis and Photocatalytic Activity of Oxysulfide Sm2Ti2S2O5”, Chem. Mater. 2003, 15, 4442-4446.*
Ishikawa et al., “Oxysulfide Sm2Ti2S2O5 as a Stable Photocatalyst for Water Oxidation and Reduction under Visible Light Irradiation (lambda less than or equal to 650 nm)”, JACS Articles (J. Am. Chem. Soc. 2002, 124, 13547-13553.

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