Unique dendritic Bi2S3 with ultrathin nanosheets rich in S vacancy-defect toward promoting highly efficient photothermal CO2 reduction into CO

The dendritic Bi 2 S 3 with ultrathin nanosheets rich in S vacancies was synthesized. The ultrathin structure and S vacancies accelerate the reaction kinetics and thermodynamic process, thereby promoting the photothermal CO 2 reduction reaction.