Abbasi Razan, Gnayem Hani, Sasson Yoel
Casali Center of Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
ACS Omega. 2024 Apr 10;9(16):18183-18190. doi: 10.1021/acsomega.3c10310. eCollection 2024 Apr 23.
Numerous methods for eliminating severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are being extensively examined in recent years as a result of the COVID-19 pandemic and its adverse effects on society. Photocatalysis is among the most encouraging solutions since it has the capacity to fully annihilate pathogens, surpassing conventional disinfecting methods. A heterostructured photocatalytic composite of (70%W BiOClBr with 30%W BiOBr) was prepared via a simple synthetic route that yielded microspheres ∼3-4 μm in diameter. The composite was evidenced to inactivate stubborn enveloped viruses. By utilizing scanning electron microscopy, transmission electron microscopy, N sorption, and X-ray diffraction, the morphology and the chemical composition of the heterostructured composite was revealed. Full elimination of SARS-CoV-2 occurred 5 min following the light-activation of the photocatalytic mixture. Illumination absence bared a slower yet effective result of full viral decomposition at a time span of 25 min. A comparable efficacious outcome was observed in the study case of vesicular stomatitis virus with complete diminishing within 30 min of visible light exposure.
由于新冠疫情及其对社会的不利影响，近年来人们广泛研究了多种消除严重急性呼吸综合征冠状病毒2（SARS-CoV-2）的方法。光催化是最令人鼓舞的解决方案之一，因为它有能力完全消灭病原体，优于传统消毒方法。通过简单的合成路线制备了一种（70%W BiOClBr与30%W BiOBr）的异质结构光催化复合材料，得到了直径约3-4μm的微球。该复合材料被证明能使顽固的包膜病毒失活。通过扫描电子显微镜、透射电子显微镜、N吸附和X射线衍射，揭示了异质结构复合材料的形态和化学成分。光催化混合物光激活5分钟后，SARS-CoV-2被完全消除。在无光照的情况下，在25分钟的时间跨度内，病毒完全分解的效果较慢但有效。在水泡性口炎病毒的研究案例中也观察到了类似的有效结果，在可见光照射30分钟内病毒完全消失。
