Liu Feng, Qin Lingyan, Ye Pingwei, Yang Bo, Wu Qiong, Li Li, Dai Yuwei, Zhou Chuan, Li Sumin
School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, China.
State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
Nanomaterials (Basel). 2024 Sep 12;14(18):1482. doi: 10.3390/nano14181482.
Presently, ethylene oxide (EtO) is posing a significant threat to both human health and the environment due to occasional or deliberate emissions. However, few works so far have focused on this issue. It is urgent to explore novel and effective technology to protect against the threat of EtO. Herein, a series of AC/ZSM-5 composites were prepared to improve the adsorption performance for EtO, evaluated by dynamic breakthrough experiments. Particularly, the AC/ZSM-20% composite demonstrated a more excellent adsorption capacity of 81.9 mg/g at 25 °C and 50% RH than that of pristine AC and ZSM-5 with 32.5 and 52.3 mg/g, respectively. Moreover, the adsorption capacity of the AC/ZSM-20% composite remained constant even after five adsorption-desorption cycles. The adsorption mechanism of EtO on the composite is further revealed by density functional theory (DFT) calculations.
目前，由于偶尔或故意排放，环氧乙烷（EtO）对人类健康和环境都构成了重大威胁。然而，迄今为止很少有研究关注这个问题。探索新颖有效的技术来防范EtO的威胁迫在眉睫。在此，制备了一系列AC/ZSM-5复合材料以提高对EtO的吸附性能，并通过动态突破实验进行评估。特别地，AC/ZSM-20%复合材料在25°C和50%相对湿度下表现出更优异的吸附容量，为81.9 mg/g，而原始AC和ZSM-5的吸附容量分别为32.5 mg/g和52.3 mg/g。此外，即使经过五次吸附-解吸循环，AC/ZSM-20%复合材料的吸附容量仍保持不变。密度泛函理论（DFT）计算进一步揭示了EtO在该复合材料上的吸附机理。
