28/10/2025
La Escuela de Ciencias Químicas e Ingeniería y el GIAMP invitan al evento virtual "Expert Conference: Bandgap Engineered Conjugated Porous Organic Polymers in Photocatalysis and Pollutant Removal".
SE ENTREGARÁ CERTIFICADO DE ASISTENCIA.
Donor-acceptor (D-A) based porous organic polymers (POPs) have emerged as promising materials in photocatalysis due to their tunable electronic structures, bandgap, high surface areas, and efficient charge separation capabilities. These polymers leverage the strong intermolecular interactions between donor and acceptor units to facilitate charge transfer, thereby enhancing light absorption and catalytic efficiency. By incorporating diverse functional groups, one can tailor their bandgap and optimize redox properties for various photocatalytic applications, including hydrogen evolution, CO₂ reduction, and organic transformations. Also, photocatalytic degradation of toxic micropollutants has innate advantages compared to adsorptive removal, particularly converting them into non-toxic or value-added byproducts. Conjugated porous polymers are photoactive, and upon light exposure, they generate electrons/holes and various reactive oxygen species. We successfully demonstrated that triphenylamine-based D-A POPs can perform visible-light-driven oxidative hydroxylation of various phenylboronic acids to phenols with yields up to 96%, selective detection of nitroaromatic micropollutants and their simultaneous photodegradation in water, as well as atom refinement by two-fold single-atom substitutions (S→Se; C→N) in photocatalysis for the oxidation of thioanisole with >99% conversion and ∼93% isolated yield. Quinoid-locked dyes in porous polymers and conjugated polymers can degrade sulfur mustards photocatalytically. Serendipitously, for the first time, we showed that BINOL-based POPs can photosynthesize large amounts of H2O2 and degrade various micropollutants.
Enlace Zoom: https://cedia.zoom.us/j/83438923825
