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Updated: Jun 27, 2025
Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
Published on: September 12, 2014
Triazine-based conjugated polymers with regulation of D-A configuration for enhanced photocatalytic activity
Chengwei Lu1, Jun Han1, Najun Li1
1College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China.
Abstract:
Photocatalysis is a green and environmentally friendly method for degrading dangerous and nonbiodegradable pollutants. In this study, a sequence of metal-free triazine-based electronic donor-acceptor (D-A) conjugated polymers Tr-X (X = Th, BT, BTh) were prepared by D-A configuration regulation between triazine (Tr) and monomers containing N and S, such as thiophene (Th), bithiophene (BTh) and benzothiadiazole (BT) units, for the photocatalytic degradation of bisphenol A (BPA) and benzene contaminants in water under visible light. Among these, Tr-BTh exhibited complete photocatalytic degradation owing to its excellent D-A configuration. Moreover, the N and S atoms, which are rich in triazine and thiophene units, serve as highly dispersed reactive sites. The separation and transfer of photogenerated carriers can be further improved by expanding the light-absorption range of polymers. In addition, the polymers showed good adsorption for BPA and other aromatic organic pollutants through π-π interaction and surface hydrogen bonding, which provides a facile strategy for efficient polymer-based photocatalysts for water purification.
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