1. Doctoral School of Engineering ScienceUniversitas Syiah Kuala Banda Aceh 23111 Indonesia
2. Center for Membrane and Film Technology, Department of Chemical Science and EngineeringKobe University, Rokkodaicho 1‐1, Nada Kobe 657‐8501 Japan
3. Graduate School of Science, Technology and InnovationKobe University, Rokkodaicho 1‐1, Nada Kobe 657‐8501 Japan
4. Department of Polymer Science and Engineering, Engineering Research Center for Membrane and Water TreatmentZhejiang University Hangzhou 310027 China
5. Department of Chemical EngineeringUniversitas Syiah Kuala Banda Aceh 23111 Indonesia