Functionalized Nano- titanium dioxide (F-TiO2)/polysulfone (PSf) mixed matrix membranes for gas separation

By mixing functionalized Nano titanium dioxide as inorganic substances with polysulfone (PSF) membrane,an extraordinary ability to separate CO2 was developed in this study. A series of amine-functionalized-nanoTiO2 /PSFmixed matrix membrane with various content of F-nanoTiO2 (0-10 wt%) were prepared by solution casting method.Detailed characterizations, morphology, have been conducted to understand the structures of mixed matrix membranes.The effects of F-nanoTiO2 loading on the gas separation (O2, N2, CO2) performance of the MMMs were evaluated usinglaboratory-scale gas separation apparatus. The MMMs exhibited higher CO2 permeability as compared with the neat PSFand TiO2/PSF membrane due to higher interaction of amine groups on F-nano TiO2 with CO2. The permeationmeasurement showed that CO2 permeability of about 3 (GPU) for MMM with 10 wt% loading of F-nano TiO2. As aresult, the developed membranes can be efficient for separating CO2 from N2.

کلیدواژه ها:

Gas Separation ، Mixed Matrix Membrane ، Functionalized Nano TiO2