N doping of oxide nanosheets

Yasumichi Matsumoto, Michio Koinuma, Yoshifumi Iwanaga, Tetsuya Sato, Shintaro Ida

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    64 Citations (Scopus)


    (Graph Presented) Photo-N doping for Nb-O system oxide nanosheets such as Nb6O17, TINbO5, and Ca2Nb 3O10 was succeeded in by treatment under mild conditions, where their H-restacked forms containing tetrabuthylammonium (TBA) ion were illuminated by UV light at room temperature. A relatively strong absorption in visible light region (400-600 nm) was observed for the N-doped samples because of formation of p-band or valence band hybridization of N in the Nb-O bandgap. The N doping proceeded only under TBA presence in water without O2, and Pt loading promoted this doping reaction. It is proposed as a mechanism from the results of the doping for the Ti-O and Nb-O nanosheet mixed samples, that the Nb-O nanosheet acts as a photocatalyst for the N-doping reaction. This is the first report of N doping to oxide nanosheets.

    Original languageEnglish
    Pages (from-to)6644-6645
    Number of pages2
    JournalJournal of the American Chemical Society
    Issue number19
    Publication statusPublished - May 20 2009

    All Science Journal Classification (ASJC) codes

    • Catalysis
    • Chemistry(all)
    • Biochemistry
    • Colloid and Surface Chemistry


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