Valorization of Biomass-Derived Platform Molecules via Photoredox Sustainable Catalysis

Abstract

The conversion of biomass into valuable chemicals has promise for application in biorefineries. Light-driven photoredox catalysis, with the typical features of green route and operation under mild conditions, is considered a promising strategy for renewable biomass or biomass-derived intermediates conversion into high-value-added chemical feedstocks. In this review, we strongly emphasize the recent advances in photocatalytic valorization of lignin model compounds and biomass-derived alcohols. We briefly summarize the advances in photocatalytic cleavage of the β-O-4 bond or C–C bond into usable chemicals in the lignin model. On the other hand, we clarify not only the hybrid system for cooperative biomass-relevant alcohols oxidation and hydrogen (H₂) evolution but also the tunable accessibility to variation of the target products from the same alcohol reactant by catalyst design and optimization of reaction conditions. It is hoped that this review will inspire the rational design of photoredox catalysis-based systems toward efficient biomass-derived platform molecules valorization to obtain target-oriented valuable products.

Keywords

Biomass / Photoredox catalysis / Value-added chemicals / Selective oxidation

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