1. Department of Physics, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
2. Department of Food and Agricultural Engineering, Kwara State University, Malete, Ilorin, Nigeria
3. Department of Physics, Sule Lamido University, Kafin Hausa, Jigawa State, Nigeria
4. Institute of Nanoscience and Nanotechnology (ION2), Universiti Putra Malaysia, Serdang, Selangor, Malaysia
5. Department of Process and Food Engineering, Universiti Putra Malaysia (UPM), Serdang, Selangor, Malaysia
6. Center of Hydrogen Energy (CHE), Institute of Future Energy (IFE), Universiti Teknologi Malaysia (UTM), Johor, Skudai, Malaysia
7. Department of Physics, Kwara State University, Malete, Ilorin, Nigeria