Japan Science and Technology Agency

Tsuyoshi Takata

Michikazu Hara

Kazunari Domen

Akio Ishikawa

Kota Nukimizu

Go Hitoki

Kota Nukumizu

A photo-catalyst containing titanium fluoride nitride comprising, Ti(IV)ONFor a compound represented by MeTi(IV)ONFprepared by doping at least one metal Me selected from the group consisting of alkali or alkaline earth metals on Ti(IV)ONF. (wherein, b is 0.1 to 1, c is 0.1 to 1 and a is a value to maintain Ti(IV) and is decided in relation to b and c.). The photo-catalyst containing titanium fluoride nitride is especially characterized by loading at least one promoter selected from the group consisting of Pt, Ni and Pd.

Photocatalyst comprising titanium fluoride nitride for water decomposition with visible light irradiation

A photocatalyst which contains at least rhombic tantalum nitride or consists of rhombic tantalum nitride. A photocatalyst wherein said photocatalyst loads a promoter composed of transition metal, in particular, the photocatalyst wherein a transition metal is platinum, further the photocatalyst for decomposition of water comprising any of these photocatalysts.

Photocatalysts for decomposition of water by visible light

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.

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Kanagawa, Japan

Tsuyoshi Takata