Rational Design of GCN/BiOClBr Hybrid Piezo‐Photocatalysts for Rapid Degradation of Tetracycline and Diclofenac

With antimicrobial resistance looming and threatening human well‐being, and conventional wastewater treatment plants being inadequate for tackling these emerging contaminants, a hybrid photo‐piezoelectric catalytic advanced oxidation system has been explored. By employing morphology control to rationally tune bismuth oxyhalide semiconductor, a suitable cocatalyst has been designed to integrate with GCN for heterojunction design. Comprehensive characterization confirmed the successful formation of GCN/BiOClBr composite heterojunctions, with SEM images highlighting nanoplate‐like structures of BiOClBr. In addition, catalytic experiments revealed nearly 85.96% and 91.3% for tetracycline and diclofenac, respectively, within 15 min, thereby showcasing superior performance compared to pristine materials. Radical capturing experiments affirmed the role of , OH, , 1 O 2 , e − , and h + . This work therefore showcases an effective strategy to develop advanced catalysts for hybrid advanced oxidation processes.