1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P.R. China
2. Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering (Tianjin University), Tianjin 300072, P.R. China
3. Institute of Seawater Desalination and Multipurpose Utilization, (MNR) Tianjin, Tianjin 300192, P.R. China