Kundu Pranati, Kaur Amandeep, Mehta S K, Kansal Sushil Kumar
J Nanosci Nanotechnol. 2014 Sep;14(9):6991-5. doi: 10.1166/jnn.2014.9238.
Ni-doped TiO2 nanoparticles were prepared using hydrothermal method and characterized by means of XRD, TEM, and TGA. The detailed characterization results revealed that the catalyst possessed spherical morphology and excellent crystalline and thermal properties. Photocatalytic capability of Ni-doped TiO2 nanoparticles was estimated by means of ofloxacin degradation under solar light. About 70% degradation of ofloxacin (25 mg/L, natural pH) was obtained with 1 g/L catalyst dose. The microbiological analysis was carried by examining its antibacterial activity against E. coli culture on agar plate. The results indicated a decrease in antibacterial activity of drug solution with increase in irradiation time, which further supported the excellent catalytic behavior of the prepared Ni-doped TiO2.
采用水热法制备了镍掺杂二氧化钛纳米颗粒，并通过X射线衍射（XRD）、透射电子显微镜（TEM）和热重分析（TGA）对其进行了表征。详细的表征结果表明，该催化剂具有球形形态以及优异的结晶和热性能。通过在太阳光下对氧氟沙星进行降解来评估镍掺杂二氧化钛纳米颗粒的光催化能力。在催化剂用量为1 g/L时，氧氟沙星（25 mg/L，自然pH值）的降解率约为70%。通过检测其在琼脂平板上对大肠杆菌培养物的抗菌活性进行了微生物分析。结果表明，随着照射时间的增加，药物溶液的抗菌活性降低，这进一步证明了所制备的镍掺杂二氧化钛具有优异的催化性能。
