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Preparation of porous niobium oxide by the exfoliation of K4Nb6O17 and its photocatalytic activity

Published online by Cambridge University Press:  31 January 2011

Ryu Abe ,
Kiyoaki Shinohara ,
Akira Tanaka ,
Michikazu Hara ,
Junko N. Kondo  and
Kazunari Domen
Ryu Abe
Affiliation:
Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan
Kiyoaki Shinohara
Affiliation:
Nikon Corp., 1–10–1 Asamizodai, Sagamihara 228, Japan
Akira Tanaka
Affiliation:
Nikon Corp., 1–10–1 Asamizodai, Sagamihara 228, Japan
Michikazu Hara
Affiliation:
Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan
Junko N. Kondo
Affiliation:
Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan
Kazunari Domen
Affiliation:
Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan
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Abstract

A new porous material was prepared from a layered compound, K4Nb6O17, through the exfoliation of its layers. A composite of the niobate sheets and MgO particles were obtained by precipitating the exfoliated two-dimensional niobate sheets with MgO fine particles. Porous niobium oxide was obtained by removal of the MgO particles from the composite after thermal treatment. It had a large surface area and showed higher photocatalytic activity than the original H+/K4Nb6O17 for H2 evolution from various aqueous alcohol solutions.

Type
Articles
Information
Journal of Materials Research , Volume 13 , Issue 4 , April 1998 , pp. 861 - 865
Copyright
Copyright © Materials Research Society 1998

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References

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