Small, Год журнала: 2025, Номер unknown

Опубликована: Июнь 2, 2025

Abstract Seeking renewable energy solutions that are sustainable and environmentally friendly is a critical contemporary research imperative. This paper presents flash Joule heating approach to prepare high‐performance nitrogen‐rich defective graphitic carbon nitride (g‐C₃N₄) for hydrogen production by photocatalytic water splitting at ultralow cost. By leveraging the rapid cooling capabilities of heating, using melamine as sole precursor, defects introduced precisely regulated while preserving structural integrity as‐synthesized prepared g‐C₃N₄. tuning processing parameters, band structure g‐C₃N₄ can also be optimized, which significantly suppress electron‐hole recombination substantially enhance its evolution from water. As result, rate 16936.5 µmol h⁻¹ g⁻¹ Pt/g‐C₃N₄ achieved, comparable leading benchmarks in field. Through life cycle assessment (LCA) cradle‐to‐gate techno‐economic (TEA), this method reduces costs 1/12, consumption 1/23, CO₂ emissions less than 1/8 those associated with thermal polymerization under equivalent conditions. These results underscore exceptional advantages developed cost‐effectiveness environmental sustainability, offering robust scientific foundation industrial‐scale g‐C₃N₄‐based photocatalysts.

Язык: Английский