Highly photoactive Z−scheme of graphene layers anchored TiO₂/g−C₃N₄ (GTOCN) photocatalyst was synthesized from MXene Ti₃C₂ through one−step in−situ calcination, and used for tetracycline (TC) and ciprofloxacin (CIP), bisphenol A (BPA) and rhodamine B (RhB) degradation under visible light irradiation. The crystal phases, chemical compositions, morphological structures and photoelectrochemical properties were characterized. The results demonstrated that hierarchical structured GTOCN photocatalysts exhibited significant improvement in visible light adsorption and photogenerated carriers separation. The GTOCN3 presented the best visible light photocatalytic synergism of degradation rate towards TC (0.02442 min⁻¹), CIP (0.01675 min⁻¹), BPA (0.01935 min⁻¹) and RhB (0.05586 min⁻¹), which was much higher than that of graphene layers anchored TiO₂, g−C₃N₄ and g−C₃N₄/TiO_2(P25), benefitting from solid interactions among graphene, TiO₂ and g−C₃N₄ for separation and accumulation of g−C₃N₄ electrons with high reduction capability and TiO₂ holes with high oxidation capability. Furthermore, the main species of •O₂⁻ and •OH for pollutants decomposition was confirmed by free radical capture and electron spin resonance experiments. Besides, the acceptable reusability and stability indicated the great application potential of GTOCN in pharmaceuticals, endocrine disruptors and colourants contained wastewater disposal and environmental protection.

MXene Ti ₃ C ₂通过一步煅烧合成了锚固有TiO ₂ / g-C ₃ N ₄（GTOCN）光催化剂的石墨烯层的高光活性Z方案，用于四环素（TC）和环丙沙星（CIP） ），双酚A（BPA）和若丹明B（RhB）在可见光照射下降解。表征了晶体相，化学组成，形态结构和光电化学性质。结果表明，分级结构化的GTOCN光催化剂在可见光吸附和光生载流子分离方面显示出显着改善。GTOCN3表现出最好的可见光对TC降解速率的光催化协同作用（0.02442分钟^-1），CIP（0.01675 min ^-1），BPA（0.01935 min ^-1）和RhB（0.05586 min ^-1），远高于锚定TiO ₂，g-C ₃ N ₄和g-的石墨烯层C ₃ N ₄ / TiO _2（P25），得益于石墨烯，TiO ₂和g-C ₃ N ₄之间的固相相互作用，可以分离和积累具有高还原能力的g-C ₃ N ₄电子和具有高氧化性的TiO ₂空穴能力。此外，•澳主要品种₂ ^-自由基捕获和电子自旋共振实验证实了•OH用于污染物的分解。此外，可接受的可重复使用性和稳定性表明GTOCN在制药，内分泌干扰物和着色剂等废水处理和环境保护方面具有巨大的应用潜力。