Bioinspired single-atom nanozymes for microplastic degradation.

Copper single-atom-loaded graphitic nitride nanozymes (Cu SAs) were constructed by bioinspired rational design from natural laccase and density functional theory calculations. Theoretical investigation revealed the geometrical and electronic structural advantages of the Cu-N active center. Experimental tests confirmed the excellent performance in microplastic degradation, with more than 90% mineralized into non-toxic products, providing a new strategy for microplastic pollution management.