In recent decades, the environmental protection and long-term sustainability have become the focus of attention due to the increasing pollution generated by the intense industrialization. To overcome these issues, environmental catalysis has increasingly been used to solve the negative impact of pollutants emission on the global environment and human health. Supported platinum-metal-group (PGM) materials are commonly utilized as the state-of-the-art catalysts to eliminate gaseous pollutants but large quantities of PGMs are required. By comparison, single-atom site catalysts (SACs) have attracted much attention in catalysis owing to their 100% atom efficiency and unique catalytic performances towards various reactions. Over the past decade, we have witnessed burgeoning interests of SACs in heterogeneous catalysis. However, to the best of our knowledge, the systematic summary and analysis of SACs in catalytic elimination of environmental pollutants has not yet been reported. In this paper, we summarize and discuss the environmental catalysis applications of SACs. Particular focus was paid to automotive and stationary emission control, including model reaction (CO oxidation, NO reduction and hydrocarbon oxidation), overall reaction (three-way catalytic and diesel oxidation reaction), elimination of volatile organic compounds (formaldehyde, benzene, and toluene), and removal/decomposition of other pollutants (Hg⁰ and SO₃). Perspectives related to further challenges, directions and design strategies of single-atom site catalysts in environmental catalysis were also provided.

在最近的几十年中，由于密集的工业化所产生的污染日益严重，环境保护和长期可持续性已成为关注的焦点。为了克服这些问题，越来越多地使用环境催化来解决污染物排放对全球环境和人类健康的负面影响。负载型铂金属族（PGM）材料通常被用作消除气态污染物的最先进的催化剂，但是需要大量的PGM。相比之下，由于单原子中心催化剂（SAC）具有100％的原子效率和对各种反应的独特催化性能，因此在催化领域引起了广泛关注。在过去的十年中，我们目睹了SAC在异相催化中的新兴兴趣。然而，据我们所知，尚未有关于SAC在催化消除环境污染物方面的系统总结和分析。在本文中，我们总结并讨论了SAC的环境催化应用。特别关注汽车和固定排放物的控制，包括模型反应（CO氧化，NO还原和碳氢化合物氧化），整体反应（三元催化和柴油氧化反应），挥发性有机化合物（甲醛，苯和甲苯）的消除），以及其他污染物（汞）的去除/分解⁰和SO ₃）。还提供了与环境催化中单原子中心催化剂的进一步挑战，方向和设计策略有关的观点。