1. Faculty of Engineering, Department of Chemical and Environmental Engineering, University of Nottingham Malaysia Campus, Semenyih, Selangor, Malaysia
2. Radiation Processing Technology Division, Malaysian Nuclear Agency, Bangi, Selangor, Malaysia
3. School of Science & Technology, Research Centre for Nano-materials & Energy Technology, Sunway University, Subang Jaya, Selangor, Malaysia
4. Energy Research Division, Taylor's University, Lakeside Campus, Subang Jaya, Selangor, Malaysia