1. NUS Environmental Research Institute (NERI), National University of Singapore, Singapore 138602, Singapore
2. Energy and Environmental Sustainability Solutions for Megacities (E2S2), Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 138602, Singapore
3. School of Engineering, Huazhong Agriculture University, Wuhan 430000, China
4. Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
5. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China