Desalination Performance of Graphene Oxide-PEG Nanohybrid Membranes

摘要

In this work, the PEG-GO hybrid membranes fabricated by Poly(ethylene glycol) diacrylate (PEGDA) and graphene oxide (GO) were tested for salt rejection. The prepared membranes with different proportions of PEG were characterized by morphology and chemical analysis as well as salt rejection experiments. The salt rejection experiments indicated the salt flux of the PEG-GO hybrid membranes reduce about 91% for NaCl, 75% for CuSO_4 and 89% for AlCl_3 respectively, exhibiting considerably superior to GO membrane. The sodium ions transfer more efficiently through the GO membranes than the heavy-metal salts.