Synergistic selenium vacancies and bismuth metal centers on Bi₂Se₃ for enhanced photocatalytic CO₂ reduction.

ABSTRACT: Ultrathin inorganic nanosheets possess a novel electronic structure that enables exceptional performance in the catalytic reduction of carbon dioxide (CO₂), representing a promising strategy to mitigate global warming. Bismuth selenide (Bi₂Se₃) nanosheets are important topological insulators exhibiting high electrical conductivity. Through a solvothermal method followed by hydrogen annealing, selenium-vacancy-rich Bi₂Se₃ nanosheets with in situ formed bismuth metal clusters are prepared. In this system, surface Se vacancies function as active centers for electron trapping and CO₂ adsorption, while Bi metal clusters serve as reactive sites to facilitate charge transfer and catalytic reactions. This dual-functional desi

SUBMITTER: Zhu Y 

PROVIDER: S-EPMC12418623 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature