1 Centre for Membrane and Water Science and Technology, Ocean College, Zhejiang University of Technology, Hangzhou, 310014, China. Electronic address: songxiaoxiao@zjut.edu.cn.
2 Centre for Membrane and Water Science and Technology, Ocean College, Zhejiang University of Technology, Hangzhou, 310014, China.
3 Singapore Membrane Technology Centre, Nanyang Technological University, Singapore 639798.
4 The University of Hong Kong, Department of Civil Engineering, Pokfulam, Hong Kong.