Chinese Journal of Catalysis ›› 2016, Vol. 37 ›› Issue (11): 2003-2008.DOI: 10.1016/S1872-2067(16)62496-8

• Article • Previous Articles     Next Articles

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

Cheng Wang, Liya Hu, Meiyin Wang, Yuanhang Ren, Bin Yue, Heyong He   

  1. Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, China
  • Received:2016-06-17 Revised:2016-07-21 Online:2016-11-25 Published:2016-11-25
  • Contact: Bin Yue,Tel:+86-21-65643916; E-mail:yuebin@fudan.edu.cn;Heyong He, Tel:+86-21-65643916; E-mail:heyonghe@fudan.edu.cn
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21371035, 21473036) and SINOPEC (X514005).

Abstract:

A series of graphitic carbon nitride supported vanadium catalysts (xV/g-C3N4) with different vana-dium contents (x/%) were prepared by impregnation. XRD, FT-IR, TEM, TG-DTG, nitrogen adsorp-tion 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.

Key words: Carbon nitride, Vanadium, Benzene hydroxylation, Phenol, Impregnation