1. School of Chemical Sciences, Universiti Sains Malaysia, USM, Penang 11800, Malaysia
2. Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
3. Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt
4. Centre for Global Archaeological Research, Universiti Sains Malaysia, USM, Penang 11800, Malaysia
5. Axe Matériaux à Porosités Contrôlées, Institut de Science de Matériaux de Mulhouse UMR 7361, ENSCMu, Université de Haute-Alsace, 3b Rue Alfred Werner, 68093 Mulhouse, France
6. Université de Strasbourg, 67000 Strasbourg, France
7. Chemistry Education Department, Universitas Pendidikan Indonesia, Jl. Setiabudhi 258, Bandung 40514, Indonesia
8. Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia