A novel strategy of constructing an artificial light-harvesting system based on a supramolecular organic framework for photocatalysis

Abstract

A supramolecular organic framework was fabricated through encapsulation-enhanced donor–acceptor interaction for the construction of artificial light-harvesting systems for photocatalysis.

Arene–perfluoroarene interactions in molecular cocrystals for enhanced photocatalytic activity

“…The addition of isopropanol (IPA) does not have an inhibiting effect on the photocatalysis, demonstrating that the HOMO potentials in the cocrystals are unable to produce hydroxyl radicals (˙OH). 51 Above all, the major roles are played by ˙O 2 − and h + , while ˙OH is not engaged in the degradation process. The experiments under an argon atmosphere further confirm that the O 2 involved in the generation of ˙O 2 − plays an important role in the photocatalytic degradation (Fig.…”

A cavitand-based supramolecular artificial light-harvesting system with sequential energy transfer for photocatalysis

“…Based on previous work, 34 we propose a reasonable mechanism for the catalytic capability of the H⊃TPEG - EsY - NiR system (Fig. 4).…”

Cucurbit[8]uril Confinement-Based Secondary Coassembly for High-Efficiency Phosphorescence Energy Transfer Behavior

“…Supramolecular near-infrared (NIR) emissive materials have aroused significant research interest owing to their outstanding features such as good spatial resolution, deep tissue penetration, and low background noise, which possess promising application values in the fields of biological imaging, − disease theranostics, − organic light-emitting devices, , and biomedical sensors. − Particularly, macrocycle-involved host–guest complexation have been turned out to be a valid strategy to construct NIR luminescent materials especially in aqueous environment. − The guest chromophores are tightly encapsulated into the cavity of well-crafted artificial macrocyclic hosts like cyclodextrins, , cucurbiturils, − and pillararenes , enabled by noncovalent interactions, which can alter molecular conformation and packing modes, thereby ultimately restricting molecular rotation or forming J-aggregates with enhanced red-shifted emissions. Alternatively, Föster resonance energy transfer (FRET)-based supramolecular artificial light-harvesting system is recognized as another feasible protocol to realize long-range NIR luminescence with large Stokes shift at a relatively high donor/acceptor ratio, − which concurrently avoids burdensome covalent chemical synthesis or modification of fluorophores and endows the system with precise controllability.…”