Characterization of Polydopamine-Coated Polyethersulfone (PES) membrane for water purification

7th AIC‐ICMR on Sciences and Engineering 2017

自然科学;工业技术

Syawaliah^1 ; Mulyati, S.^2 ; Muzaitun^2 ; Mulyasari, R.^2

Doctoral School of Engineering Science, Syiah Kuala University, Banda Aceh

23111, Indonesia^1

Chemical Engineering Department, Syiah Kuala University, Banda Aceh

23111, Indonesia^2

关键词: Asymmetric structures;    Elongation at break;    Immersion time;    PES membranes;    Phase-inversion method;    Polyethersulfone membrane;    Surface coatings;    Water purification;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/352/1/012052/pdf
DOI  :  10.1088/1757-899X/352/1/012052

来源: IOP

【 摘 要 】

The polyethersulfone (PES) membrane has been prepared by phase inversion method using N-methyl-2-pyrolidone (NMP) as solvent and polydopamine (PDA) as additive. The fabricated membrane was modified by coating with PDA of 0.5 g/l concentration and 180 minutes immersion time. The characteristic of the PES membranes before and after the modification was studied in this paper. The result of the pure water permeation experiment showed that the PDA-coated PES membrane showcased a higher flux than that of pure PES membrane. Scanning Electron Microscopy (SEM) analysis confirmed that the membrane had an asymmetric structure consisting of two layers. There was no significant influence on the addition of PDA to the morphology of the pore matrix because the modification was done by surface coating. Fourier Transform Infrared Spectroscopy (FTIR) analysis showed that PDA was successfully introduced on the surface of PES membrane with the appearance of peak O-H from catechol at wavenumber of 3348 cm-1. Modification with PDA increased the mechanical strength of the membrane which affirmed by the results of the tensile and elongation at break evaluation.