Improving visible-light-driven photocatalytic NO oxidation over BiOBr nanoplates through tunable oxygen vacancies

Oxygen vacancies have several roles in photocatalysis, including the introduction of intermediate energy levels to enhance light absorption and promote electron transfer. The vacancies act as active sites for the catalytic reaction and activation of oxygen molecules, facilitating the conversion of intermediate products to the final product and, thus, increasing the overall efficiency of visible light photocatalysis.