This paper introduces a multifunctional air filter with a strong ability to trap and disinfect pathogens and absorb particulate matter (PM), the volatile organic compound (VOC), and CO₂. This study demonstrates a facile and eco-friendly synthesis of copper coordination polymer particle (Cu-CPP)-decorated non-woven fibre filters (Cu-CPP/NWF) via an in situ growth dip-coating method. Their multifunction potentials in air pollution treatment are also assessed. The Cu-CPP/NWF filter media showed a remarkable performance for air treatment, with 100% disinfection efficiency against airborne E. coli bacteria (2 × 10⁶ CFU mL⁻¹) in 45 min, superior PM removal efficiency (quality factor 0.299 Pa⁻¹), excellent p-xylene adsorption capacities (1.19 mmol/g) and high potential CO₂ uptake capacities (19.81 cm³/g). A Cu-CPP can work as an antibacterial agent and an adsorbent component, thus offering many applications. The rational integration of Cu-CPP can substantially enhance the filtration efficiency via electrostatic interaction, while most commercial air purifiers rely on dense fibrous filters. This study provides valuable insight into developing a multifunctional and reusable air filter proven to be a life-saving product for public health protection.

本文介绍了一种多功能空气过滤器，它具有很强的捕集和消毒病原体以及吸收颗粒物（PM）、挥发性有机化合物（VOC）和CO _2的能力。本研究展示了通过原位生长浸涂法简便且环保地合成铜配位聚合物颗粒 (Cu-CPP) 装饰的非织造纤维过滤器 (Cu-CPP/NWF)。还评估了它们在空气污染处理中的多功能潜力。Cu-CPP/NWF 过滤介质在空气处理方面表现出卓越的性能，在 45 分钟内对空气中的大肠杆菌（2 × 10 ⁶ CFU mL ^{-1 ）具有 100% 的}消毒效率，卓越的 PM 去除效率（品质因数 0.299 Pa ^-1)、优异的对二甲苯吸附能力 (1.19 mmol/g) 和高潜在的 CO ₂吸收能力 (19.81 cm ³ /g)。Cu-CPP 可以用作抗菌剂和吸附剂成分，因此提供了许多应用。Cu-CPP的合理整合可以通过静电相互作用显着提高过滤效率，而大多数商用空气净化器依赖于密集的纤维过滤器。这项研究为开发一种多功能和可重复使用的空气过滤器提供了宝贵的见解，该过滤器被证明是保护公众健康的救生产品。