1. School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore.
2. Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore 637141, Singapore.
3. Environmental Process Modelling Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore 637141, Singapore.
4. School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore.
5. State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300072, China.
6. Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.
7. Department of Chemical and Biomedical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-338, Republic of Korea.