Efficient Photocatalytic Decomposition of Organic Contaminants over CaBi2O4 under Visible-Light Irradiation

Authors

  • Junwang Tang Dr.,

    1. Ecomaterials Center, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
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  • Zhigang Zou Dr.,

    1. Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
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  • Jinhua Ye Dr.

    1. Ecomaterials Center, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan, and, PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama, Japan, Fax: (+81) 298-59-2601
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  • This work was supported by a Grant-in-Aid for the Creation of Innovations through Business–Academic–Public Sector Cooperation, Japan.

Abstract

original image

Green degradation: Organic contaminants such as volatile organic compounds and dyes (e.g. acetaldehyde and methylene blue (MB)) can be photocatalytically degraded over a novel CaBi2O4 catalyst. The reaction is environmentally friendly (O2 oxidant) and proceeds at room temperature under visible-light irradiation of wide-ranging wavelength (see picture: x=conversion of CH3CHO into CO2, A=absorbance).

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