Synergistic Generation of ROS via Covalent Organic Frameworks with Excellent Energy Transfer and Charge Transfer Characteristics for Phenolic Pollutants Treatment

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116156 - 116156

Published: March 1, 2025

Language: Английский

High-Efficiency NO conversion via In-Situ grown covalent organic framework on g-C3N4 nanosheets with Single-Atom platinum photocatalyst

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154487 - 154487

Published: Aug. 3, 2024

This study presents a chemically bonded Pt/TP-BPY-CN/g-C3N4 composite photocatalyst created through an in-situ growth method via Schiff base reaction between g-C3N4 and aldehyde-functionalized TP-BPY-COF. The −H-C-N-H- bonds formed at the TP-BPY-COF interface significantly boost electron communication, thereby substantially enhancing transfer efficiency these two constituents. Besides, single-atom platinum incorporation coordination establishes Pt2+/Pt4+ redox cycle, aiding both oxidation reduction of nitric oxide (NO). Consequently, Pt/40TPBPY-CN achieves 65.3 % NO conversion, with almost 100 selectivity towards NO3–. In-situ XPS analysis confirms robust communication facilitated by bonds, transformation Pt2+ Pt4+. In addition, DFT calculation provides deeper insight into photocatalytic pathways, confirming inhibition N2 desorption. research underscores benefits heterostructures for improved electronic interactions highlights efficacy bifunctional in photocatalysis.

Language: Английский

Boosting exciton dissociation in conjugated microporous polymers via molecular isomerization for photocatalytic degradation of antibiotics

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 357, P. 130016 - 130016

Published: Oct. 9, 2024

Language: Английский