Electrons 6 Arsenic 4 Cerium compounds 4 Conduction band 4 Conduction band electrons 4 Crystal fields 4 Highly correlated systems 4 Intermetallics 4 TiO 4 p-electron 4 Approximation theory 2 Aqueous suspensions 2 Arsenicals 2 Band structure 2 Catalysis 2 Crystal structure 2 Crystalline materials 2 Density of states 2 Direct Reduction 2 Electron donors 2 Fermi level 2 Hydroxyl radicals 2 Magnetic resonance 2 Methanol 2 Methanol Oxidation 2 Monochalcogenides 2 Nanoparticles 2 Oxidation-Reduction 2 Photocatalytic process 2 Photocatalytic reduction 2