Chinese Journal of Catalysis ›› 2017, Vol. 38 ›› Issue (1): 29-38.DOI: 10.1016/S1872-2067(16)62589-5

• Article • Previous Articles     Next Articles

Fabrication of highly dispersed platinum-deposited porous g-C3N4 by a simple in situ photoreduction strategy and their excellent visible light photocatalytic activity toward aqueous 4-fluorophenol degradation

Zhenxing Zeng, Kexin Li, Kai Wei, Yuhua Dai, Liushui Yan, Huiqin Guo, Xubiao Luo   

  1. Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, Jiangxi, China
  • Received:2016-09-17 Revised:2016-11-06 Online:2017-01-18 Published:2017-01-18
  • Contact: Kexin Li,Tel/Fax:+86-791-83953373;E-mail:likx880@hotmail.com;Yuhua Dai,Tel/Fax:+86-791-83953373;E-mail:dyh-8808@sohu.com
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (51568049, 51208248, 51468043, 21366024), the National Science Fund for Excellent Young Scholars (51422807), the Natural Science Foundation of Jiangxi Province, China (20161BAB206118, 20114BAB213015), and the Natural Science Foundation of Jiangxi Provincial Department of Education, China (GJJ14515, GJJ12456).

Abstract:

A series of highly dispersed platinum-deposited porous g-C3N4 (Pt/pg-C3N4) were successfully fab-ricated by a simple in situ photoreduction strategy using chloroplatinic acid and porous g-C3N4 as precursors. Porous g-C3N4 was fabricated by a pretreatment strategy using melamine as a raw ma-terial. The morphology, porosity, phase, chemical structure, and optical and electronic properties of as-prepared Pt/pg-C3N4 were characterized. The photocatalytic activity of as-prepared Pt/pg-C3N4 was preliminarily evaluated by the degradation of aqueous azo dyes methyl orange under visible light irradiation. The as-prepared Pt/pg-C3N4 were further applied to the degradation and mineral-ization of aqueous 4-fluorophenol. The recyclability of Pt/pg-C3N4 was evaluated under four con-secutive photocatalytic runs.

Key words: Photocatalysis, Porous graphitic carbon nitride, Photoreduction, Platinum deposition, 4-Fluorophenol