1. Department of Mechanical Engineering, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia
2. Research Centre for Nanomaterials and Energy Technology (RCNMET), School of Engineering and Technology, Sunway University, 47500 Petaling Jaya, Selangor, Malaysia
3. Department of Chemical Engineering, Faculty of Mechanical, Chemical and Industrial Engineering, University of Engineering and Technology, 25120 Peshawar, Pakistan
4. CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
5. School of Engineering, Lancaster University, Lancaster LA1 4YW, U.K.