Covalent triazine framework with efficient photocatalytic activity in aqueous and solid media
Cyrine Ayed1,2, Wei Huang1, Kai A. I. Zhang1()
1. Max Planck Institute for Polymer Research, 55128 Mainz, Germany 2. Graduate School for Excellence Materials Science in Mainz, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
Covalent triazine frameworks (CTFs) have been recently employed for visible light-driven photocatalysis due to their unique optical and electronic properties. However, the usually highly hydrophobic nature of CTFs, which originates from their overall aromatic backbone, leads to limitations of CTFs for applications in aqueous media. In this study, we aim to extend the range of the application media of CTFs and design hybrid material of a CTF and mesoporous silica (SBA-15) for efficient photocatalysis in aqueous medium. A thiophene-containing CTF was directly synthesized in mesopores of SBA-15. Due to the high surface area and the added hydrophilic properties by silica, the hybrid material demonstrated excellent adsorption of organic molecules in water. This leads not only to high photocatalytic performance of the hybrid material for the degradation of organic dyes in water, but also for efficient photocatalysis in solvent-free and solid state. Furthermore, the reusability, stability and easy recovery of the hybrid material offers promising metal-free heterogeneous photocatalyst for broader applications in different reaction media.
. [J]. Frontiers of Chemical Science and Engineering, 2020, 14(3): 397-404.
Cyrine Ayed, Wei Huang, Kai A. I. Zhang. Covalent triazine framework with efficient photocatalytic activity in aqueous and solid media. Front. Chem. Sci. Eng., 2020, 14(3): 397-404.
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