Vanadium supported on graphitic carbon nitride as a heterogeneous catalyst for the direct oxidation of benzene to phenol

A series of graphitic carbon nitride supported vanadium catalysts (xV/g-C3N4) with different vanadium contents (x/%) were prepared by impregnation. XRD, FT-IR, TEM, TG-DTG, nitrogen adsorption and XPS characterizations were conducted which revealed a strong interaction between the vanadium species a...

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Bibliographic Details
Published inChinese journal of catalysis Vol. 37; no. 11; pp. 2003 - 2008
Main Authors Wang, Cheng, Hu, Liya, Wang, Meiyin, Ren, Yuanhang, Yue, Bin, He, Heyong
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.2016
Subjects
Benzene hydroxylation
Carbon nitride
Impregnation
Phenol
Vanadium
Impregnation
Phenol
Vanadium
Benzene hydroxylation
Carbon nitride
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Summary:A series of graphitic carbon nitride supported vanadium catalysts (xV/g-C3N4) with different vanadium contents (x/%) were prepared by impregnation. XRD, FT-IR, TEM, TG-DTG, nitrogen adsorption and XPS characterizations were conducted which revealed a strong interaction between the vanadium species and g-C3N4 support. 8V/g-C3N4 exhibited the highest activity and showed stable recyclability in the benzene hydroxylation reaction with a benzene conversion of 24.6% and phenol selectivity of 99.2% under the optimized conditions. The excellent catalytic performance of xV/g-C3N4 was due to the integration of vanadium species with high catalytic activity and the g-C3N4 support in their interaction with the benzene substrate xV/g-C3N4 have been prepared by the impregnation method and 8V/g-C3N4 exhibited a superior catalytic performance in the direct benzene hydroxylation.
ISSN:1872-2067
1872-2067
DOI:10.1016/S1872-2067(16)62496-8