Investigation of the dynamics of radiolytic formation of ZnO nanostructured materials by pulse radiolysis |
| |
| Affiliation: | 1. Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India;2. Water & Steam Chemistry Division, BARC Facility, Kalpakkam 603 102, India;1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People''s Republic of China;2. Department of Electrical Engineering, University of California, Los Angeles, California 90095, USA;3. State Grid Shiyan Power Supply Company, No.79, Renmin South Road, Shiyan City, Hubei Province 442000, People''s Republic of China;1. Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, United States;2. Wellesley College, Wellesley, MA 02492, United States;3. Astronomy Department, Cornell University, Ithaca, NY 14853, United States;4. NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States;5. Ashima Research, Pasadena, CA 91106, United States;1. Physics Department-Faculty of Science-AL Faisaliah Campus, King Abdul Aziz University, Jeddah, Saudi Arabia;2. Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;3. Nano-Science & semiconductor Labs., Thin Film Lab., Department of Physics, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt;4. Research chair of Exploitation of Renewable Energy Applications in Saudi Arabia, Physics & Astronomy Dept., College of Science, King Saud University, P.O.Box 2455, Riyadh 11451, Saudi Arabia;1. IBS Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, Suwon, 440-746, Republic of Korea;2. Department of Energy Science, Sungkyunkwan University, Suwon, 440-746, Republic of Korea;3. Department of Physics, Sungkyunkwan University, Suwon, 440-746, Republic of Korea;1. ICB UMR 6303, CNRS, UTBM, Université de Bourgogne Franche-Comté, 90010 Belfort, France;2. Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS, 1 Rue Grandville, BP 20451, 54001 Nancy Cedex, France |
| |
| Abstract: | ZnO nanostructures have been synthesized by radiolytic methods. A Cobalt-60 γ-source and a 7 MeV linear electron accelerator (LINAC) was used for the radiolysis experiments. Reducing agent like hydrated electron (eaq−), which is produced in radiolysis of water, was used to synthesize ZnO nanostructure materials from zinc salt. 1 M tert-butanol was used to quench the primary oxidizing radical like hydroxyl radical (OH ) radiolytic water solution. Doses of about 80–130 kGy were used to perform radiolysis experiments in the present investigation. Time-resolved pulse radiolysis has been used to monitor the transient species involved in the formation of ZnO nanostructures by monitoring at different wavelengths. A scheme for the formation of the ZnO nanostructured materials by the radiolytic method has been described. The formation of ZnO nanostructures was confirmed by X-ray diffraction (XRD) measurements. Dynamic light scattering (DLS) measurements indicated that the size of the nanostructures is in the range of 6–8 nm, which is in agreement with that obtained from XRD. It is interesting to note that ZnO nanostructured materials, as prepared by the radiolytic method, exhibit strong room-temperature fluorescence. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
