3 and CH4 gases were applied as precursors to synthesize nitrogen-doped carbon (NDC) photocatalysts. Without any co-catalysts, the NDC was demonstrated to drive photoredox reactions, and active sites on the NDC have been investigated. Because in the Archean era, the atmosphere of Earth was filled with NH3 and CH4 gases, this study is important to understand the evolution of biomolecules in the Earth by photochemistry. Credit: Angewandte Chemie International Edition (2023). DOI: 10.1002/anie.202307236″> To create nitrogen-doped carbon ( NDC ) photocatalysts, NH3 and CH4 gases were used as precursors. The NDC has been shown to drive photoredox reactions in the absence of any co-catalysts, and active sites on it have been looked into. This study is crucial to comprehend the evolution of biomolecules in the Earth through photochemistry because the atmosphere of Earth during the Archean era was filled with NH3 and CH4 gases. Angewandte Chemie International Edition(