Department of Chemistry, Siddaganga Institute of Technology, Tumakuru 572103, Karnataka, India.
Department of Studies & Research in Environmental Science, Tumakuru University, Tumakuru 572103, Karnataka, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2017 Oct 5;185:11-19. doi: 10.1016/j.saa.2017.05.032. Epub 2017 May 16.
In the present work, Zinc oxide nanoparticles (ZnO Nps) have been successfully prepared through a simple, effective and low cost solution combustion method using Zn (NO)·6HO as an oxidizer, chakkota (Common name=Pomelo) fruit juice as novel fuel. X-ray diffraction pattern indicates the hexagonal wurtzite structure with average crystallite size of ~22nm. ZnO Nps were characterized with the aid of different spectroscopic techniques such as Raman spectroscopy, Fourier Transform Infrared spectroscopy, Photoluminescence and UV-Visible spectroscopy. FTIR shows characteristic ZnO vibrational mode at 393cm. SEM images show that the particles are agglomerated. TEM image shows the size of the particles are about 10-20nm. Further, in order to establish practical applicability of the synthesized ZnO Nps, photocatalytic degradation of methylene blue (MB) dye as a model system was studied in presence of UV (665nm) light. In addition to this, the antibacterial activity was screen against 3 bacterial strains and electrochemical sensor performance towards the quantification of dopamine at nano molar concentrations was also explored.
在本工作中，通过一种简单、有效且低成本的溶液燃烧法，以 Zn(NO3)2·6H2O 作为氧化剂、chakkota（俗称柚子）果汁作为新型燃料，成功制备了氧化锌纳米粒子（ZnO Nps）。X 射线衍射图谱表明，具有平均晶粒尺寸约为 22nm 的六方纤锌矿结构。借助不同的光谱技术，如拉曼光谱、傅里叶变换红外光谱、光致发光和紫外-可见光谱对 ZnO Nps 进行了表征。FTIR 显示出在 393cm 处具有特征 ZnO 振动模式。SEM 图像显示颗粒发生了团聚。TEM 图像显示颗粒的尺寸约为 10-20nm。此外，为了建立所合成 ZnO Nps 的实际适用性，以亚甲基蓝（MB）染料作为模型体系，在 UV（665nm）光下研究了光催化降解性能。除此之外，还对其进行了针对 3 种细菌菌株的抗菌活性筛选，并探索了其在纳米摩尔浓度下对多巴胺进行定量的电化学传感器性能。
