The industrial release of antimony (Sb) has caused serious environmental problems and waste of antimony resources in recent years. Herein, we propose a facile approach that can solve these two issues in succession. A promising Sb adsorbent, nitrogen-doped reduced graphene oxide (NGO), was synthesized by a simple hydrothermal method, which further serves as anode materials after Sb adsorption for high-performance sodium-ion batteries. Within 20 min, the as-prepared NGO has demonstrated a high Sb rejection rate of 98% in 500 ppb Sb solution and an exceeding adsorption capacity of 115.57 mg g⁻¹ in 100 ppm Sb solution via effective chemisorption. The chemisorption mechanism has contributed not only to the antimony rejection performance but also the stability of the post-adsorbents. In this way, the post-adsorbent SbO_x@NGO was adopted as anode material in sodium-ion batteries. The as-assembled sodium-ion battery exhibits outstanding rate performance and cycling performance with a reversible capacity of 312 mAh g⁻¹. The work has demonstrated a concept that can reject and recover Sb species simultaneously with minimum pollution and high economical benefit.

近年来，锑的工业释放已经引起严重的环境问题和锑资源的浪费。在此，我们提出了一种可以轻松解决这两个问题的简便方法。通过简单的水热法合成了一种有前途的Sb吸附剂，氮掺杂的还原氧化石墨烯（NGO），该吸附剂在Sb吸附后还可用作高性能钠离子电池的负极材料。所制备的NGO在20分钟内显示出在500 ppb Sb溶液中的Sb排斥率高达98％，吸附容量超过115.57 mg g ^-1通过有效的化学吸附在100 ppm Sb溶液中溶解。化学吸附机理不仅对锑的排斥性能有贡献，而且对后吸附剂的稳定性也有贡献。这样，后吸附剂SbO _x @NGO被用作钠离子电池的负极材料。组装好的钠离子电池具有出色的倍率性能和循环性能，可逆容量为312 mAh g ^-1。这项工作证明了可以以最小的污染和较高的经济效益同时排斥和回收锑物种的概念。