TY - JOUR
AU - Jayaraman, Sundaramurthy
AB - Membrane separation processes have been widely employed for the treatment of textile effluents. The thin-film composite (TFC) is mainly used for treating textile effluents. TFC membrane offers some desirable characteristics such as higher water permeability and better removal efficiency over the traditional asymmetric membranes. In the present work, four types of TFC polyamide membranes were fabricated on polyethersulfone (PES) substrate layers via interfacial polymerization between m-phenylenediamine (MPD) in an aqueous phase and trimesoyl chloride (TMC) in an organic phase. To maximise permeate flow was done by varying the composition of PEG 600 and PVP K30. This polyamide ultra-thin skin layer was coated over the PES substrate layer by varying the aqueous and organic phase concentration resulting in different thicknesses thereby leading to variation in rejection. The modified PES thin-film composite membranes were characterized by field-emission scanning electron microscopy (FESEM), and Fourier transforms infrared spectroscopy (FTIR). Crystal violet, orange G, congo red and methylene blue dyes were used as samples to study the separation performance over these modified PES membranes. The membrane properties observed were; pure water and dye permeate fluxes, surface hydrophilicity, membrane porosity, mean pore radius, salt rejection and rejection efficiency. For the various feed concentrations of crystal violet, orange G, methylene blue and congo red the rejection efficiency was 99.6%, 99.8%, 99.3% and 99.7%, respectively.
TI - Modified polyethersulfone thin-film composite membrane via interfacial polymerization for an effective dye separation
JF - Environmental Sustainability
DO - 10.1007/s42398-022-00239-4
DA - 2022-09-01
UR - https://www.deepdyve.com/lp/springer-journals/modified-polyethersulfone-thin-film-composite-membrane-via-interfacial-14SweMiNue
SP - 345
EP - 354
VL - 5
IS - 3
DP - DeepDyve
ER -