(669e) Biomass Valorization Via Photo-Electro-Bio Hybrid Catalytic Systems

Biomass valorization is regarded as a promising approach to alleviate energy crisis and achieve carbon neutrality. Bioactive enzymes have attracted great attention and been commonly applied for biomass valorization owing to their high selectivity and catalytic efficiency under environmentally benign reaction conditions. Same as biocatalysis, photo-/electro-catalysis also happens at mild conditions (i.e., near ambient temperature and pressure). Therefore, the combination of these different catalytic approaches to benefit from their resulting synergy is appealing! In such hybrid systems, harness of renewable energy from the photo-/electro-catalytic compartment can be combined with the unique selectivity of biocatalysts, therefore providing a more sustainable and greener approach to obtain fuels and value-added chemicals from biomass. In this presentation, I firstly overview the pros/cons, classifications, and the applications of photo-/electro-enzyme coupled systems for biomass-active enzymes. Then, I will introduce some of our research on this direction such as one-pot sequential cascade enzyme-photo catalytic reaction for selective gluconic acid production from cellulose, and biomass derived organic acid photoenzymatic reduction via in-situ NADH regeneration. Finally, I will give future perspectives of biomass-active enzymes to be applied in the hybrid catalytic systems for global biomass valorization.