As a highly toxic and corrosive waste gas, the selective elimination of H₂S is of great significance in terms of safety production and environmental protection. In this short review, we focus on porous carbons, nano g-C₃N₄, and polymers that have been functionalized with structural base nitrogen sites because nitrogen-doped metal-free materials are superior to traditional metal-based catalysts in activity and reusability in H₂S selective oxidation. Compared with g-C₃N₄, the porous polymer and carbon solid bases could be adjusted not only in porous structure but also in the structure of nitrogen-containing base sites. It is especially so for the porous polymeric solid bases, which could be tuned to show hydrophobic property and water resistance ability, endowing the materials with excellent catalytic performance in moisture environment. These newly developed metal-free catalysts can be applied for the deep elimination of H₂S in industrial processes while having H₂S converted to useful sulfur.

作为一种剧毒，腐蚀性强的废气，选择性消除H ₂ S在安全生产和环境保护方面具有重要意义。在本篇简短的综述中，我们将重点介绍多孔碳，纳米g -C ₃ N ₄以及已被结构氮基位点官能化的聚合物，因为掺氮的无金属材料在活性和可重复使用性方面均优于传统的基于金属的催化剂在H ₂ S中选择性氧化。与g -C ₃ N _4比较因此，不仅可以在多孔结构中而且可以在含氮碱位的结构中调节多孔聚合物和碳固体碱。对于多孔聚合物固体基料尤其如此，其可以被调节以显示出疏水性和耐水性，从而赋予材料在潮湿环境中优异的催化性能。这些新开发的无金属的催化剂可应用于H的深消除₂ S IN的工业过程，同时具有ħ ₂小号转化成有用的硫。