1. Centre for Membrane Separation and Water Science & Technology, Department of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
2. Collaborative Innovation Center of Membrane Separation and Water Treatment of Zhejiang Province, Hangzhou 310014, China
3. Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou 215123, P. R. China
4. Department of Civil Engineering, the University of Hong Kong, Pokfulam, Hong Kong SAR P. R. China