Photoredox Catalytic Organic Transformations using Heterogeneous Carbon Nitrides

Rh/polymeric carbon nitride porous tubular catalyst: visible light enhanced chlorophenol hydrodechlorination in base-free aqueous medium

Novel porous tubular Rh/PCN exhibited highly promoted activity in hydrodechlorination of harmful chlorophenols to high-value cyclohexanol and cyclohexanone with base-free aqueous medium and balloon H₂ pressure under the irradiation of visible light.

Monomer sequence design at two solvent interface enables the synthesis of highly photoactive carbon nitride

Structural modifications in carbon nitrides and related carbon-based materials have been achieved in recent years by organizing their monomers into versatile supramolecular structures that serve as reactants for the high temperature solid-state reaction. To date, the organization is usually carried out in one solvent where the building blocks must be dispersed. Here, we show the utilization of a molecule with both hydrogen bond donor and acceptor sites for constructing hydrogen bonded frameworks in interfacial systems. The chemical and electronic properties of the carbon nitride materials after calcination are strongly altered showing enhanced photocatalytic performance in different model reactions. This work shows a new large-scale pathway for the synthesis of highly photoactive carbon nitride with tailored properties and morphology by employing novel supramolecular assemblies prepared in the interface between two solvents, and furthermore opens new opportunities in the rational design of different carbon–nitrogen based materials utilizing supramolecular structures.

The design of a supramolecular assembly in a two solvent interface is used to tailor the morphology, chemical and electronic properties of carbon nitride. This approach opens many opportunities for the design of C–N based materials.

Semiconductors as heterogeneous visible light photoredox catalysts in combined dual metal catalyzed C–H functionalizations

A protocol for C–H olefination with heterogeneous photocatalysts and visible light together with transition metals has been developed.