Chang Shufang, Hu Yiwen, Qian Jun, Shao Yinlin, Ni Shuang, Kong Lulu, Dan Wenyan, Luo Chun, Jin Shu, Xu Xiaoxiang
Clinical and Central Lab, Putuo People's Hospital, Department of Neurosurgery, Tongji Hospital, Tongji University School of Medicine, Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, China.
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China.
Chem Eng J. 2021 Apr 15;410:128410. doi: 10.1016/j.cej.2021.128410. Epub 2021 Jan 6.
Nitrogen doped MgTiO spinel, i.e. MgTiON, has been synthesized and investigated as a photocatalyst for antibacterial activity. MgTiON demonstrates superior photocatalytic activity for disinfection under visible light illumination (λ ≥ 400 nm). Complete disinfection of at a bacterial cell density of 1.0 × 10 CFU mL can be achieved within merely 60 min. MgTiON is capable of generating superoxide radicals (O ) under visible light illumination which are the reactive oxygen species (ROSs) for bacteria disinfection. DFT calculations have verified the importance of nitrogen dopants in improving the visible light sensitivity of MgTiON. The facile synthesis, low cost, good biocompatibility and high disinfection activity of MgTiON warrant promising applications in the field of water purification and antibacterial products.
氮掺杂的MgTiO尖晶石，即MgTiON，已被合成并作为具有抗菌活性的光催化剂进行了研究。MgTiON在可见光照射（λ≥400nm）下表现出优异的光催化消毒活性。在细菌细胞密度为1.0×10CFU mL时，仅需60分钟即可实现完全消毒。MgTiON在可见光照射下能够产生超氧自由基（O），这些超氧自由基是用于细菌消毒的活性氧物种（ROSs）。密度泛函理论（DFT）计算已经证实了氮掺杂剂在提高MgTiON可见光敏感性方面的重要性。MgTiON的简便合成、低成本、良好的生物相容性和高消毒活性保证了其在水净化和抗菌产品领域的应用前景广阔。
