Department of Energy Science, Sungkyunkwan University, Suwon 16419, South Korea.
Centre for Integrated Nanostructure Physics (CINAP), Sungkyunkwan University, Suwon 16419, South Korea.
ACS Infect Dis. 2024 Jun 14;10(6):1890-1895. doi: 10.1021/acsinfecdis.4c00126. Epub 2024 May 13.
Currently used visible light catalysts either operate with high-power light sources or require prolonged periods of time for catalytic reactions. This presents a limitation regarding facile application in indoor environments and spaces frequented by the public. Furthermore, this gives rise to elevated power consumption. Here, we enhance photocatalytic performance with blue TiO and WO complexes covalently coupled through an organic molecule, 3-mercaptopropionic acid, under indoor light. Antibacterial experiments against 10 CFU/mL () suspensions were conducted under indoor light exposure conditions. They showed a sterilization effect of almost 90% within 70 min and nearly 100% after 110 min. The complex generates reactive oxygen species (ROS), such as OH and O, under natural air conditions. We also showed that h and OH are important for sterilizing using common scavengers. This research highlights the potential of these complexes to generate ROS, effectively playing a crucial role in antibacterial effects under indoor light.
目前使用的可见光催化剂要么需要高功率光源，要么需要很长的催化反应时间。这对于在室内环境和公共场所的应用带来了限制，并且会导致功耗增加。在这里，我们通过一种有机分子 3-巯基丙酸将蓝 TiO 和 WO 配合物通过共价键连接，在室内光下增强光催化性能。在室内光照射条件下，对 10 CFU/mL ()悬浮液进行了抗菌实验。结果表明，在 70 分钟内几乎达到 90%的杀菌效果，在 110 分钟后达到近 100%的杀菌效果。在自然空气条件下，该配合物会产生 ROS，如 OH 和 O。我们还表明 h 和 OH 对于使用常见清除剂杀灭 是重要的。这项研究强调了这些配合物产生 ROS 的潜力，这对室内光下的抗菌作用起着至关重要的作用。
