One-step synthesis of defected Bi2Al4O9/β-Bi2O3 heterojunctions for photocatalytic reduction of CO2 to CO

Defect and charge transfer efficiency of nano-photocatalysts are important factors which influence their photocatalytic performance. In this work, oxygen vacancies are successfully introduced in the synthesis process of Bi2Al4O9/β-Bi2O3 heterojunctions through one-step in situ self-combustion method. High-resolution transmission electron microscopy (HRTEM), UV-Vis diffuse reflectance spectra (UV-Vis DRS), and electron spin resonance (ESR)...