In order to achieve excellent visible light photoactivity of TiO₂, it is still urgently required to extend their optical absorption ability and improve the potential of charge separation and migration. Here we synthesized highly efficient visible-light-active catalysts F-TiO₂/g-C₃N₄ via a one-step-calcination method. Due to the synergic effect of ≡Ti−F, ≡Ti:F−H and the heterojunction, the obtained catalysts possess promising properties as highly efficient separation and migration of photoelectron-hole pairs. The prepared F-TiO₂/g-C₃N₄ heterojunction can be successfully applied to degrade the widely used flame retardants and antibiotics. More than 95% of tetrabromobisphenol A (TBBPA) was decomposed after light illumination for 120 min, and 98% of sulfamethazine (SMZ) was degraded for 60 min by F-TiO₂/g-C₃N₄. Furthermore, a reasonable catalytic mechanism for the F-TiO₂/g-C₃N₄ catalysts was proposed. It could be seen that the active species •O₂⁻, •OH, and h⁺ played important roles in the photocatalytic process under visible light illumination.

为实现TiO ₂优异的可见光光活性，仍迫切需要扩展其光吸收能力，提高电荷分离迁移的潜力。在这里，我们通过一步煅烧法合成了高效的可见光活性催化剂 F-TiO ₂ /gC ₃ N _{4 。}由于≡Ti-F、≡Ti:F-H和异质结的协同作用，所获得的催化剂具有高效分离和迁移光电子-空穴对的良好性能。制备的F-TiO ₂ /gC ₃ N ₄异质结可以成功地应用于降解广泛使用的阻燃剂和抗生素。光照120 min后，95%以上的四溴双酚A（TBBPA）被分解，98%的磺胺二甲嘧啶（SMZ）被F-TiO ₂ /gC ₃ N ₄降解60 min 。_{此外，提出了F-TiO 2} /gC ₃ N ₄催化剂的合理催化机理。可以看出，活性物种•O ₂ ^-、•OH 和h ⁺在可见光照射下的光催化过程中起重要作用。