Conjugated porous polymers with porphyrin dyes for heterogeneous photocatalytic applications under visible light
Final Report Abstract
The combination of classical polymers with photocatalytic moieties is a powerful tool for the creation of heterogeneous photocatalytic systems, allowing recyclability as well as control over the structural design and material properties. Starting point of the project was the idea of using porphyrin based org. dyes for the incorporation in heterogeneous frameworks. Unfortunately first test showed low incorporation rates and poor photocatalytic performers based on low light penetration and insufficient solvent compatibility. Therefore a different design strategies for the incorporation of photocatalytic moieties into heterogeneous frameworks was needed. The used photocatalytic moieties are based on a Donor-Acceptor design and allows easy modification, while enabling control over the HOMO/LUMO levels and the absorbance wavelength. Through the addition of functional groups the small molecule photocatalyst can be copolymerized into a variety of polymers. The usage of classical polymers as a substrate for the fixation of a photocatalytic moiety enables the tuning of mechanical properties of the heterogeneous system. Gaining the wide variety of possible applications of classical polymers in combination with an efficient photocatalytic moiety. Based on the DFG-founding six papers were published highlighting the introduction of a benzothiadiazole into different frameworks. Through introduction of the photocatalytic moiety with classical polymers a novel class of cheap efficient photocatalyst was created. The variants of publications highlight that combination of classic polymers with single photocatalytic units lead to a novel metal-free photocatalyst material with easy tunable properties, including solvability or responsibility to external stimuli.
Publications
- Dual-Responsive Photocatalytic Polymer Nanogels. Angew. Chem. Int. Ed. 2019, 58, 1-6
Ferguson, C. T. J.; Huber, N.; Landfester, K.; Zhang, K. A. I.
(See online at https://doi.org/10.1002/anie.201903309) - A PMMA-based heterogeneous photocatalyst for visible lightpromoted [4 + 2] cycloaddition. Catal. Sci. Technol. 2020, 10, 2092-2099
Huber, N.; Li, R.; Ferguson, C. T. J.; Gehrig, D. W.; Ramanan, C.; Blom, P. W. M.; Landfester, K.; Zhang, K. A. I.
(See online at https://doi.org/10.1039/D0CY00016G) - Covalent Triazine Framework Nanoparticles via Size-Controllable Confinement Synthesis for Enhanced Visible- Light Photoredox Catalysis. Angew. Chem. Int. Ed. Engl. 2020, 59, 18368-18373
Huang, W.; Huber, N.; Jiang, S.; Landfester, K.; Zhang, K. A. I.
(See online at https://doi.org/10.1002/anie.202007358) - Dispersible porous classical polymer photocatalysts for visible light-mediated production of pharmaceutically relevant compounds in multiple solvents. J. Mater. Chem. A 2020, 8, 1072-1076
Ferguson, C. T. J.; Huber, N.; Kuckhoff, T.; Zhang, K. A. I.; Landfester, K.
(See online at https://doi.org/10.1039/C9TA11242A) - Porous aromatic frameworks with precisely controllable conjugation lengths for visible light-driven photocatalytic selective C-H activation reactions. Eur. Polym. J. 2020, 140, 110060
Huber, N.; Zhang, K. A. I.
(See online at https://doi.org/10.1016/j.eurpolymj.2020.110060) - Photocatalytic Hydrogels with a High Transmission Polymer Network for Pollutant Remediation. Chem. Mater. 2021, 33, 9131-9138
Kuckhoff, T.; Landfester, K.; Zhang, K. A. I.; Ferguson, C. T. J.
(See online at https://doi.org/10.1021/acs.chemmater.1c02180)
