Author/Authors :
Rahimpour، A نويسنده School of Chemical Engineering, Babol University of Technology, Babol, Iran , , Dehghani Kiadehi، A نويسنده School of Chemical Engineering, Babol University of Technology, Babol, Iran , , Jahanshahi، M نويسنده School of Chemical Engineering, Babol University of Technology, Babol, Iran , , Ghoreyshi، A.A نويسنده School of Chemical Engineering, Babol University of Technology, Babol, Iran ,
Abstract :
TiO2 nanoparticles were pretreated with ethelendiamine (EDA) to synthesize aminefunctionalized TiO2. The mixed matrix membranes (MMM) comprised of aminfunctionalized TiO2 inside polysulfone (PSf) matrix were fabricated and characterized
for gas separation. The effects of the amin-functionalized TiO2 loading on the gas
permeation properties of the MMM were investigated by varying the aminfunctionalized TiO2 loading in the PSf matrix from 0–10 wt%. The fabricated aminfunctionalized TiO2/PSf MMM were characterized by scanning electron microscopy
(SEM), Fourier Transform Infrared spectroscopy (FT/IR) and pure gas permeation test.
Gas permeation measurement showed that MMMs embedded with different amount of
amin-functionalized TiO2 exhibited different separation performances. For example, in
MMMs containing 10 wt% amin-functionalized TiO2, the permeability of N2, CH4, CO2
and O2 increased up to 0.69, 0.8, 3.5 and 1.1 GPU respectively. Due to the higher
interaction of amine groups on F-nano TiO2 with polar gases, amin-functionalized TiO2
possessed better performances in terms of permeability and selectivity in comparison to
pure TiO2. The results revealed that the functionalization of TiO2 has improved the gas
permeability of prepared membranes.
