NGHIÊN CỨU CHẾ TẠO MÀNG LỌC NANO THEO PHƯƠNG PHÁP TRÙNG HỢP BỀ MẶT VỚI MONOMER SINH HỌC DOPAMINE

Tóm tắt

In this study, we introduce a thin film composite (TFC) nanofiltration (NF) membrane prepared by the
interfacial polymerization (IP) using dopamine-biomonomer with trimesoyl chloride (TMC). The
cellulose acetate (CA) ultrafiltration membrane was used as a support layer. Dopamine can not only
firmly adhere to the support layer but also can form a uniform polyamide layer to improve water
transport and separation. The fabricated TFC NF properties were characterized using modern
techniques, including attenuated total reflectance-Fourier transform infrared spectroscopy (ATRFTIR), scanning electron microscopy (SEM), and contact angles. Dopamine-based TFC NF membrane
exhibited a high permeability of 48.2 L m-2 h
-1 bar-1 and a congo red rejection of 99.3%.