Chinese Journal of Catalysis ›› 2017, Vol. 38 ›› Issue (3): 583-588.DOI: 10.1016/S1872-2067(17)62771-2

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Environmentally benign and economic synthesis of covalent triazine-based frameworks

Ling Zhanga,b, Xue Liub, Rui-Xia Yangb, Nian-Yu Huanga, Wei-Qiao Dengb   

  1. a Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang 443002, Hubei, China;
    b State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2016-11-30 Revised:2016-12-25 Online:2017-03-18 Published:2017-03-22
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21373202, 21525315).

Abstract:

Covalent triazine-based frameworks (CTFs) are important microporous materials with a wide range of applications. Here, we demonstrate an environmentally benign and economic synthetic pathway to CTFs. The monomers used for CTFs, aromatic nitriles, were obtained by cyanation using nontoxic potassium hexacyanoferrate(II) in place of commonly used toxic cyanides. Then, the CTFs were synthesized by trimerization of the corresponding cyano monomers in molten zinc chloride. A series of CTFs was synthesized, and the highest Brunauer-Emmett-Teller surface area measured in this series was 2404 m2/g. Among the synthesized CTFs, CTFDCP exhibited excellent CO2 adsorption properties, with a CO2 uptake of 225 mg/g at 0℃.

Key words: Covalent triazine-based framework, Aryl bromide, Cyanation, Potassium hexacyanoferrate(II), Palladium acetate