Fig. 2: Spin polarization enhanced O2 adsorption.

a In-situ EPR spectra of·O2– produced by various materials in low DO condition (2.46 mg L−1) under visible light irradiation. b Adsorption energy of O2 on various materials. The inset figures from left to right represent the configurations of O2 adsorption on the surface of In2S3, IS/MB-perfect, and IS/MB-12%. c Energy levels of IS/MB-perfect’s FMOs and O2’s π* orbitals. d Energy levels of IS/MB-12%’s FMOs and O2’s π* orbitals.