Preparation of Polymeric Ion-Exchange Membrane for Water Desalination

Please enable javascript in your browser.

Vakilzadeh Ebrahimi, Mohammad Kazem | 2019

763 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 52558 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Musavi, Abbas
Abstract:
In present research work, methods of preparing ion exchange membranes, especially anion exchange membranes, were studied and chemical modification of polysulfone was chosen as a safe and economical method for preparing anion exchange membranes. The chloromethylated polysulfone was characterized by HNMR spectroscopy and functionalization degree was determined according to peak area integration. Membranes were produced by mixing and amination of the chloromethylated and normal polysulfone (40-100% wt). Morphology and chemical structure of membranes were investigated by SEM images and FTIR spectroscopy.The ionic conductivity, ion exchange capacity and water content of samples were measured. The ion exchange capacity of prepared samples varied from 0.78 to 2.61 mmol/g while the water content increased from 26 to 46%. Based on the obtained results, prepared anion exchange membranes with 60-80% chloromethylated polysulfone could be proposed as good candidates for the desalination of water
Keywords:
Seawater Desalination ; Electrodialysis System ; Ion Exchange Membrane ; Anion Exchange Membrane ; Ion Exchange Capacity ; Water Uptake

No TOC