Microspheres of graphene oxide coupled to N-doped Bi sub(2)O sub(2)CO sub(3) for visible light photocatalysis

Hierarchical microspheres of a graphene oxide (GO) coupled to N-doped (BiO) sub(2)CO sub(3) composite (N-BOC-GO) was synthesized by a simple hydrothermal approach. The N-BOC-GO composite gave enhancement in photocatalytic activity compared to the pure BOC and N-BOC samples. With 1.0 wt% GO, 62% NO r...

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Bibliographic Details
Published inChinese journal of catalysis Vol. 37; no. 5; pp. 760 - 768
Main Authors Jin, Ruiben, Jiang, Xiaojia, Zhou, Yangyuan, Zhao, Jianfu
Format Journal Article
LanguageChinese
Published 01.05.2016
Subjects
Charge transfer
Graphene
Joining
Microspheres
Oxides
Photocatalysis
Photocatalysts
Photoluminescence
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Summary:Hierarchical microspheres of a graphene oxide (GO) coupled to N-doped (BiO) sub(2)CO sub(3) composite (N-BOC-GO) was synthesized by a simple hydrothermal approach. The N-BOC-GO composite gave enhancement in photocatalytic activity compared to the pure BOC and N-BOC samples. With 1.0 wt% GO, 62% NO removal was obtained with N-BOC-GO. The factors enhancing the photocatalytic performance were the high electron-withdrawing ability and high conductivity of GO and improved visible light-harvesting ability of N-BOC-GO with a 3D hierarchical architecture due to the surface scattering and reflecting (SSR) effect. An effective charge transfer from N-BOC to GO was demonstrated by the much weakened photoluminescene intensity of the N-BOC-GO composite. This work highlights the potential application of GO-based photocatalysts in air purification.
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ISSN:0253-9837
DOI:10.1016/S1872-2067(15)61079-8