|
|||||
|
|
Low temperature synthesis of fluorescent ZnO nanoparticles |
|
| Authors: | Yaqoob Khan Mazhar Mehmood M Riaz Khan |
| Institution: | a National Centre for Nanotechnology, Department of Chemical and materials Engineering, Pakistan Institute of Engineering and Applied Sciences P. O. Nilore, Islamabad, 45650,Pakistan b Materials Division, Pakistan Institute of Nuclear Science and Technology, P. O. Nilore, Islamabad, Pakistan c Centralized Resource laboratory, University of Peshawar, Peshawar, Pakistan d Bio-photonics lab, National Institute of Laser and Optronics, P.O Nilore, Islamabad, Pakistan |
| Abstract: | Fluorescent ZnO nanoparticles have been prepared by mixing aqueous solutions of zinc nitrate and ammonium carbonate in the presence of a non-ionic surfactant, Tween-80. Increased concentrations of the surfactant were found to affect both the morphology and purity of the synthesized ZnO nanoparticles. XRD, SEM, FTIR, TGA and Confocal laser scanning microscopy were employed to characterize the as-prepared samples. ZnO nanoparticles ranging in particle size from 11 to 15 nm were formed at the reaction temperature of 70-80 °C. The results of FTIR and TGA analysis indicate the self assembly of Tween molecules on the surface of ZnO nanoparticles. A bright emission in the visible region from the as-prepared ZnO nanoparticles was recorded using confocal laser scanning microscopy. This property of the as-prepared nanoparticles may find potential application in bio-imaging. |
| Keywords: | ZnO nanoparticles Tween-80 Self-assembly Visible fluorescence Bio-imaging |
| 本文献已被 ScienceDirect 等数据库收录！ | |