Fast Hydrolysis Precipitation Synthesis of Copper Doped BiOCl Nanosheets for Enhanced Nitrogen Fixation Under Visible Light

In this study, hydrolysis precipitation was employed to quickly and efficiently synthesize Cu²⁺ doped BiOCl nanosheets. The doping of Cu²⁺promoted the generation of oxygen vacancies on the surface of BiOCl and the separation of photogenerated electron hole pairs. Oxygen vacancies, as electron donor centers and reactive sites, can effectively enhance the catalytic performance of BiOCl. According to performance testing, the nitrogen fixation ability of 3 wt % Cu/BiOCl (259 μmol L^–1 h^–1) is 1.7 times that of BiOCl (156 μmol L^–1 h^–1). This synthesis technique provides a novel approach for the inexpensive, effective, and high-yield production of photocatalysts.