1. Chemical Engineering Research CenterSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
2. Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 P. R. China
3. Tianjin Key Laboratory of Membrane Science and Desalination TechnologyState Key Laboratory of Chemical Engineering (Tianjin University) Tianjin 300072 P. R. China