Self‐Assembled PDINH Supramolecular System for Photocatalysis under Visible Light

Abstract

A self-assembled perylene-3,4,9,10-tetracarboxylic diimide(PDINH) supramolecular system consisting of all-organic PDINH molecule building blocks through non-covalent interactions works as a visible light photocatalyst with high activity.

Molecular Control of Internal Crystallization and Photocatalytic Function in Supramolecular Nanostructures

“…12,13 Examples with differences as small as a single carbon 14 or an isomeric linkage 15 used have been previously demonstrated. When working with chromophore assemblies that possess highly ordered crystalline domains, 16–20 it should also be possible to control the crystal packing through slight modifications to the supramolecular monomers, an effect which has already been documented for organic single crystals, 21–23 and self-assembled monolayers. 24 …”

“…26 The strong propensity of rylene-based chromophores such as perylene diimide (PDI) and perylene monoimide (PMI) to π-π stack makes them ideal targets to investigate how molecular packing affects electronic properties in supramolecular systems. 7,20,27–29 One example from Adams et al . revealed photoconductivity of PDI thin films could be dramatically altered by controlling the extent of H and J aggregation of chromphores.…”

Donor–Acceptor Cyanocarbazole‐Based Supramolecular Photocatalysts for Visible‐Light‐Driven H2 Production

“…Zhu and co‐workers developed a noncovalent self‐assembled perylene‐3,4,9,10‐tetracarboxylic diimide (PDINH) supramolecular system, consisting solely of organic molecules, used for photocatalytic oxygen generation and photodegradation. However, this supramolecular system was not sufficient for hydrogen production, owing to its low conduction band (CB) position [−0.049 V vs normal hydrogen electrode (NHE)] . Liu et al.…”

“…However,t his supramolecular system was not sufficient for hydrogenp roduction, owing to its low conductionband (CB) position[À0.049 Vvsnormal hydrogen electrode (NHE)]. [15] Liu et al reported ab is(diphenylamino)terphenyl dicarbaldehyde-based supramolecular system for efficient photocatalytic removal of bromate,b ut it is not suitable for H 2 production,o wing to too high av alence band (VB) position (0.525 Vv s. NHE) and the weak oxidizing powero ft he photogenerated hole. [11] Zhang et al developed am etal-free fluorescein-based supramolecular system for hydrogen production.…”

TiO2@Perylene Diimide Full‐Spectrum Photocatalysts via Semi‐Core–Shell Structure

“…Perylene diimide (PDI) self‐assembly has attracted much attention in solar cells, sensors, fluorescence probes, n‐transistors, and photocatalysts . In photocatalysis, PDI self‐assembly and its composites can be used for photocatalytic hydrogen production, oxygen production, dye degradation, dehalogenation, and CC coupling reaction, attributed to excellent visible‐light absorption, charge conductivity, structural modifiability, morphology controllability, and performance optimization. However, PDI self‐assembly has not been industrialized on a large scale, since there are two main problems: high electron–hole recombination leads to low utilization of the solar energy; and it can only absorb visible light while near‐infrared light and ultraviolet light cannot be effectively utilized.…”