1. Department of Chemistry, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
2. Department of Environmental and Safety Engineering, Taiyuan Institute of Technology, Taiyuan, Shanxi, People’s Republic of China
3. School of Environment and Safety Engineering, North University of China, Taiyuan, Shanxi, People’s Republic of China
4. Department of Material Engineering, Taiyuan Institute of Technology Taiyuan, Shanxi, People’s Republic of China
5. Department of Chemistry & Chemical Engineering, Taiyuan Institute of Technology, Taiyuan, Shanxi, People’s Republic of China