College of Chemistry and Chemical Engineering, Qiannan Normal University for Nationalities, Duyun 558000, China.
Da Tian Zhuang Township Health Center, Feixian 273400, China.
J Nanosci Nanotechnol. 2020 Mar 1;20(3):1447-1453. doi: 10.1166/jnn.2020.16951.
In present work, a novel Nd@TiO₂ Nanocomposite, synthesized successfully by a facile sol-gel method, reveals significant light-activated antibacterial activity. The X-ray diffraction (XRD), Raman spectroscopy and transmission electron microscopy (TEM) show the anatase phase and globular shape of Nd@TiO₂. UV-vis diffuse reflectance spectroscopy and low temperature N₂ adsorption (BET) indicate Nd@TiO₂ has the narrow band gap (3.0 eV) and a high specific surface area (121.1 m₂·g). Furthermore, the prepared Nd@TiO₂ exhibits unprecedented higher photocatalytic activity than P25 TiO₂. In water, Nd@TiO₂ has higher inactivation against bacteria under simulated solar light irradiation 70 min than TiO₂, and the highest antibacterial efficiency (91.5%) of was achieved on Nd@TiO₂.
在目前的工作中，一种新型的 Nd@TiO₂ 纳米复合材料通过简便的溶胶-凝胶法成功合成，表现出显著的光激活抗菌活性。X 射线衍射（XRD）、拉曼光谱和透射电子显微镜（TEM）显示 Nd@TiO₂ 具有锐钛矿相和球形。紫外可见漫反射光谱和低温 N₂吸附（BET）表明 Nd@TiO₂ 具有窄带隙（3.0 eV）和高比表面积（121.1 m²·g）。此外，所制备的 Nd@TiO₂ 表现出比 P25 TiO₂ 更高的光催化活性。在水中，Nd@TiO₂ 在模拟太阳光照射 70 分钟下对细菌的失活作用高于 TiO₂，在 Nd@TiO₂ 上获得了最高的抗菌效率（91.5%）。
