1. College of Environment and Chemical Engineering & State Key Laboratory of Hollow-Fiber Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, P. R. China
2. College
of Textile Engineering, Zhejiang Industry Polytechnic College, Shaoxing 312000, P. R. China
3. College of Science, Tianjin University of Science & Technology, Tianjin 300457, P. R. China