Chinese Journal of Catalysis ›› 2018, Vol. 39 ›› Issue (7): 1263-1271.DOI: 10.1016/S1872-2067(18)63063-3

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Facile synthesis of Fe-containing graphitic carbon nitride materials and their catalytic application in direct hydroxylation of benzene to phenol

Bing Xue, Ye Chen, Yin Hong, Ding-Yang Ma, Jie Xu, Yong-Xin Li   

  1. Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
  • Received:2018-01-19 Revised:2018-03-19 Online:2018-07-18 Published:2018-06-07
  • Contact: 10.1016/S1872-2067(18)63063-3
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21673024), Advanced Catalysis and Green Manufacturing Collabora-tive Innovation Center (ACGM2016-06-28), Foundation of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering (2017-K28), and the Top-notch Academic Programs Project of Jiangsu Higher Education Institutions (PPZY2015B145).

Abstract:

Fe-containing graphitic carbon nitride (Fe-g-C3N4) materials were synthesized via one-step pyrolysis of FeCl3 and dicyandiamide. The physicochemical properties of the synthesized Fe-g-C3N4 samples were characterized by N2 adsorption-desorption, X-ray diffraction, thermal gravimetric, Fourier transform infrared, UV-vis diffuse reflectance, X-ray photoelectron spectroscopy, and transmission electron microscopy. The Fe cations were anchored by nitrogen-rich g-C3N4, whereas the graphitic structures of g-C3N4 were retained after the introduction of Fe. As heterogeneous catalysts, Fe-g-C3N4 exhibited good catalytic activity in the direct hydroxylation of benzene to phenol with H2O2, affording a maximum yield of phenol of up to 17.5%. Compared with other Fe-and V-containing g-C3N4 materials, Fe-g-C3N4 features a more convenient preparation procedure and higher catalytic productivity of phenol.

Key words: Benzene, Hydroxylation, Graphitic carbon nitride, Phenol