1. Department of Engineering, School of Engineering and Technology, Sunway University, Bandar Sunway Selangor 47500, Malaysia
2. College of Safety Engineering, Chongqing University of Science & Technology, Chongqing 401331, P. R. China
3. Department of Chemical Engineering, National Chung Hsing University, Taichung 40227, Taiwan
4. Department of Chemical and Energy Engineering, Curtin University Malaysia, CDT 250, Miri, Sarawak 98009, Malaysia
5. Research Centre for Sustainable Technologies, Faculty of Engineering, Computing and Science, Swinburne University of Technology, Jalan Simpang Tiga, Kuching, Sarawak 93350, Malaysia