A series of AgBr/P-g-C₃N₄ (AB/CN) were fabricated via in-situ growth of AgBr particles on the surface of calcined P-g-C₃N₄ layered mesoporous materials, and the catalysts were used for the photocatalytic degradation of ephedrine (EHP) under simulated solar irradiation. All photocatalysts demonstrated high photocatalytic performances for EPH degradation, and the AB/CN (5:1) showed the best photocatalytic activity. The holes, superoxide radicals and singlet oxygen were the dominant reactive oxygen species involved in EPH degradation. The enhanced photocatalytic performance of AgBr/P-g-C₃N₄ was ascribed to the formation of Ag nanoparticles and the Z-scheme mechanism. EPH degradation was accelerated by dissolved organic matter or HCO₃- at low concentrations, but inhibited at high levels. The addition of CO₃^2- enhanced EPH degradation, and NO₃- suppressed the degradation. AB/CN was also able to degrade EPH in surface water and secondary effluent, implying the potential of the prepared materials in illicit drugs removal in practical applications.

通过在煅烧的PgC ₃ N ₄层介孔材料表面上原位生长AgBr颗粒，制备了一系列AgBr / PgC ₃ N ₄（AB / CN），并将该催化剂用于麻黄碱的光催化降解（EHP） ）在模拟太阳辐射下。所有光催化剂均表现出对EPH降解的高光催化性能，而AB / CN（5：1）显示出最佳的光催化活性。空穴，超氧自由基和单线态氧是参与EPH降解的主要活性氧。AgBr / PgC ₃ N ₄的增强的光催化性能归因于银纳米粒子的形成和Z方案的机制。在低浓度下，溶解的有机物或HCO ₃促进了EPH降解，但在高浓度下，抑制了EPH 。CO ₃ ^2-的添加增强了EPH降解，而NO _3-抑制了降解。AB / CN还能够降解地表水和次级废水中的EPH，这意味着所制备的材料在实际应用中具有清除非法药物的潜力。