Daylight-activated detoxifying nanofibrous membranes (LDNMs) are fabricated by grafting benzophenone-3,3′,4,4′-tetracarboxylic dianhydride (BD) and biological thiols successively on poly(vinyl alcohol-co-ethylene) (EVOH) nanofibrous membrane. Taking the merits of photoactivity of BD, high-reactivity of biological thiols, and high specific surface area and porosity of the nanofibrous membrane, 1,3-dichloropropene (1,3-D) can be efficiently detoxified on the LDNMs under daylight irradiation via a thiol-ene click reaction. The detoxification function of the LDNMs is “switched on” by light irradiation and continues by following a cascade of chemical attacks of thiyl radicals formed during the photoexcitation process. The resultant LDNMs present rapid detoxification rate (i.e., t_1/2 = ~30 min) and massive detoxification amount (i.e., ~12 mg/g) against 1,3-D vapor under ambient conditions. More importantly, the LDNMs perform a detoxification tailing effect after moving the light-irradiated membrane to a dark environment, thus ensuring the protective function in the absence of sufficient light sources. The detoxification property of the LDNMs in an outdoor environment with sunlight irradiation shows comparable results to the lab-scale outcomes, enabling them to serve as innovative materials for personal protective equipment in practical applications. The successful fabrication of LDNMs may inspire new insights into the design of protective materials providing aggressive protection.

日光激活解毒纳米纤维膜（LDNM）是通过将二苯甲酮-3,3',4,4'-四甲酸二酐（BD）和生物硫醇依次接枝到聚乙烯醇-共-乙烯（EVOH）纳米纤维膜上制成的。利用BD的光活性、生物硫醇的高反应性以及纳米纤维膜的高比表面积和孔隙率的优点，1,3-二氯丙烯（1,3-D）可以在日光照射下在LDNM上有效解毒硫醇-烯点击反应。 LDNM 的解毒功能通过光照射“开启”，并通过在光激发过程中形成的硫基自由基的一系列化学攻击而继续。所得LDNM在环境条件下对1,3-D蒸气表现出快速的解毒速率（即t _1/2 =〜30分钟）和大量的解毒量（即〜12 mg/g）。更重要的是，LDNMs将光照射膜移至黑暗环境后发挥解毒拖尾作用，从而保证在没有足够光源的情况下的保护功能。 LDNM在阳光照射的室外环境中的解毒特性显示出与实验室规模的结果相当的结果，使它们能够在实际应用中作为个人防护设备的创新材料。 LDNM 的成功制造可能会激发人们对提供积极保护的防护材料设计的新见解。