Solar Lignin Reforming with Tunable Selectivity Using a Hybrid Photocatalyst in Aqueous Solution.

ABSTRACT: The valorization of lignin provides an important means to access sustainable base chemicals, but current approaches are hampered by the lack of selective and scalable systems in aqueous solution. Here, we report a ZnIn₂S₄ (ZIS)-based photocatalytic system that directs photogenerated electrons to cocatalysts to control product selectivity by using concentrated solar irradiation. By introducing a phosphonated molecular Ni cocatalyst for hydrogen evolution (NiP), the conversion of the lignin model compound 2-phenoxy-1-phenylethanol shifts from phenol and acetophenone on bare ZIS to H₂ and 2-phenoxy-1-phenylethanone on the ZIS|NiP system (5 sun). The latter achieves a turnover number (TON_H2) of up to 120 mol_H2 mol_NiP^-1

SUBMITTER: Chen L 

PROVIDER: S-EPMC12673586 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature