Tailoring carbon-block water purification system to reusable air filters

例如，随着人们对新冠肺炎颗粒物在商场和写字楼等商业建筑通风管道中扩散的担忧日益加剧，更高效的过滤系统正在涌现。利用GAC、热机械剥离石墨烯、活性氧化铝和有机粘结剂(如甲基纤维素)的协同作用，开发一种吸附材料的混合复合系统，将有利于显著改善过滤性能。此外，由于石墨烯是一种导电材料，可以将非常低的电压脉冲分散到石墨烯过滤器中，清除其中的病毒和细菌。新冠肺炎的情况在一定程度上表明了开放工作空间的危险，一些公司可能很难重新开放如此大的空间，除非他们拥有高效的空气过滤系统，能够中和并杀死通过通风管道传播的病毒。从经济和社会的角度来看，新型高效空气过滤器的开发将为解决这些关切提供工具。

With the rising concerns about COVID-19 particles dispersion in air ducts in commercial buildings such asmalls and offices for instance, more efficient filtration systems are emerging. The development of a hybridcomposite system of adsorbent materials that leverages the synergistic effect of both GAC,thermo-mechanically exfoliated graphene, activated alumina and organic binders such as methyl-cellulosecould be beneficial to drastically improve the filtration performances. Moreover, as graphene is anelectro-conductive material, a very low-voltage impulse can be dispersed into the graphene filter and eliminatethe virus and bacteria trapped in it. The COVID-19 situation has shown the danger, to some extent, of openworking space and it may be difficult for some companies to reopen such large space unless they have anefficient air filtration system which is tailored to neutralise and kill the viruses transmitted through the ductventilation. Both on an economical and social perspective, the development of new efficient air filters wouldprovide tools to address these concerns.