Integrating Photocatalysis and Biosynthesis for Upgrading CO 2 into Single-Cell Protein
Abstract
Energy dilemmas and environmental degradation have emerged as interconnected challenges that command extensive global attention. Herein, we report an integrated strategy through integrating photocatalysis and biosynthesis for producing single-cell protein (SCP), utilizing carbon dioxide (CO 2 ) as the carbon source. First, Eu-doped NiAl-layered double hydroxides (Eu-NiAl-LDHs) were rationally designed via orbital coupling engineering for photocatalytic-driven CO 2 reduction, enabling the effective synthesis of syngas (CO and H 2 ) with tunable composition. Moving downstream to the biosynthetic phase, Hydrogenophaga pseudoflava Z-1107 was strategically utilized to transform the precursor syngas into SCP, with a cell dry weight of 566 mg L –1 . This work thus demonstrates a potential route toward a carbon-negative solution of upgrading CO 2 .
Fields of Study & Subjects
CO2 Reduction Techniques and Catalysts
Metalloenzymes and iron-sulfur proteins
Carbon dioxide utilization in catalysis
Publication details
- Journal / source
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Volume
- 16
- Issue
- 5
- Pages
- 4387–4398
- Publication date
- 20 February 2026
- Language
- EN