In:
Frontiers in Chemistry, Frontiers Media SA, Vol. 8 ( 2020-12-2)
Abstract:
The incorporation of functional building blocks to construct functionalized and highly porous covalent triazine frameworks (CTFs) is essential to the emerging adsorptive-involved field. Herein, a series of amide functionalized CTFs (CTF-PO71) have been synthesized using a bottom-up strategy in which pigment PO71 with an amide group is employed as a monomer under ionothermal conditions with ZnCl 2 as the solvent and catalyst. The pore structure can be controlled by the amount of ZnCl 2 to monomer ratio. Benefitting from the highly porous structure and amide functionalities, CTF-PO71, as a sulfur cathode host, simultaneously demonstrates physical confinement and chemical anchoring of sulfur species, thus leading to superior capacity, cycling stability, and rate capability in comparison to unfunctionalized CTF. Meanwhile, as an adsorbent of organic dye molecules, CTF-PO71 was demonstrated to exhibit strong chemical interactions with dye molecules, facilitating adsorption kinetics and thereby promoting the adsorption rate and capacity. Furthermore, the dynamic adsorption experiments of organic dyes from solutions showed selectivity/priority of CTF-PO71s for specific dye molecules.
Type of Medium:
Online Resource
ISSN:
2296-2646
DOI:
10.3389/fchem.2020.584204
DOI:
10.3389/fchem.2020.584204.s001
Language:
Unknown
Publisher:
Frontiers Media SA
Publication Date:
2020
detail.hit.zdb_id:
2711776-5
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