Effect of Concentration of Sodium Glycinate (GlyNa) Modified SAPO-34 Molecular Sieves for CO2 Separation in Poly (phenylene) Oxide-Glyna SAPO-34 Hybrid Membranes

摘要

In the present study, an amine salt (sodium glycinate) aqueous solution, CH2NH2COONa (GlyNa) was used as source of amine groups for modification of as-synthesized SAPO-34 molecular sieve via silica sol mixing method. Introduction of new functional groups in the SAPO-34 due to GlyNa were confirmed by Fourier transform infrared (FTIR) technique. GlyNa modified SAPO-34 molecular sieves of lower concentration (2-10 wt.%) and (12.5 wt.%) poly phenylene oxide (PPO) polymer were used to fabricate novel flat sheet hybrid membranes via solvent evaporation technique.