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Issue 27, 2013
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Highly efficient visible-light-induced photocatalytic hydrogenation of nitrobenzene to aniline in water

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Abstract

Highly efficient visible-light-induced photocatalytic hydrogenation of nitrobenzene to aniline in water was observed over a Bi2MoO6 photocatalyst under N2 atmosphere in the presence of (NH4)2C2O4 as a hole scavenger. 100% of the nitrobenzene was converted and the selectivity of aniline was ∼97% after 20 min of visible light irradiation (λ ≥ 400 nm). The Bi2MoO6 photocatalyst showed good catalytic stability for the hydrogenation of nitrobenzene. Further experimental results revealed that both (NH4)2C2O4 and the N2 atmosphere were indispensable for the photocatalytic hydrogenation of nitrobenzene to aniline over the Bi2MoO6 photocatalyst. On the basis of the electron spin resonance analysis results, photoinduced electrons of the Bi2MoO6 photocatalyst were found to be the main active species for the hydrogenation of nitrobenzene. Moreover, a mechanism was proposed to explain the visible-light-induced photocatalytic hydrogenation of nitrobenzene to aniline over the Bi2MoO6 photocatalyst.

Graphical abstract: Highly efficient visible-light-induced photocatalytic hydrogenation of nitrobenzene to aniline in water

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Publication details

The article was received on 22 Feb 2013, accepted on 19 Apr 2013 and first published on 19 Apr 2013


Article type: Paper
DOI: 10.1039/C3RA40935J
RSC Adv., 2013,3, 10894-10899

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    Highly efficient visible-light-induced photocatalytic hydrogenation of nitrobenzene to aniline in water

    W. Wu, R. Lin, L. Shen, R. Liang, R. Yuan and L. Wu, RSC Adv., 2013, 3, 10894
    DOI: 10.1039/C3RA40935J

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