Photocatalytic fixation of nitrogen to ammonia with a Ce/S co-doped TiO₂ catalyst: synergistic tuning of heterovalent metal states and oxygen vacancy defects

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A novel Ce/S co-doped TiO 2 sulfur-oxide catalyst (labeled TiCeOS) with heterovalent metal states and oxygen-vacancy defects was synthesized for effective photocatalytic nitrogen fixation into ammonia under visible light.