Visible‐Light‐Induced Rapid Elimination of Antibiotic Resistance Contaminations Using Graphitic Carbon Nitride Tailored with Carrier Confinement Domains

Solar water disinfection facilitated by photocatalyst has been considered a viable point-of-use (POU) method for mitigating antibiotic resistance contaminations at the household or community levels. Here, density functional theory calculations are used to guide the fabrication of a carrier confinement domains (CCD)-decorated graphitic carbon nitride (CN) photocatalyst. The CCD integration effectively disrupts the electron distribution symmetry of CN, amplifies its local electron density, and facilitates the formation of long-range ordered structure, thereby enhancing charge separation efficiency. Importantly, the CCD directs the migration of photogenerated carriers to specific regions upon light illumination, effectively minimizing their spatial proximity. As a result, the overall reactive oxygen species level of the photocatalytic system is markedly elevated, with a twelvefold increase in H