In this paper, the TiO₂ catalyst is successfully modified with a metal organic framework derivative, N-doped graphite carbon (GC-N), by pyrolyzing ZIF-8 using a hydrothermal method. The resulting GC-N-TiO₂ catalyst displays significantly improved performance in the photocatalytic degradation of toluene compared with Pt catalyst. In addition, the material exhibited high durability with stable performance after 20 recycles in static conditions and after 24 h of continuous use in dynamic conditions. The superior performance was attributed to the high conductivity and chemical stability of the catalyst. Also, the rich pyridinic N in GC-N facilitates the transfer of photogenerated electrons to oxygen, thereby promoting the generation of reactive oxygen species (ROS). This work provides new insight into the application of metal organic framework derivatives as a possible alternative to noble metal loaded materials in photocatalytic degradation of VOCs.

本文通过水热法热解ZIF-8，成功地将金属有机骨架衍生物N掺杂的石墨碳（GC-N）改性为TiO ₂催化剂。生成的GC-N-TiO ₂与Pt催化剂相比，该催化剂在甲苯的光催化降解方面显示出显着改善的性能。此外，该材料在静态条件下进行20次循环后以及在动态条件下连续使用24小时后，还显示出高耐久性和稳定的性能。优异的性能归因于催化剂的高电导率和化学稳定性。同样，GC-N中富含吡啶的N促进了光生电子向氧的转移，从而促进了活性氧（ROS）的生成。这项工作为金属有机骨架衍生物在光催化降解VOC中作为贵金属负载材料的可能替代方法的应用提供了新的见识。