TY - JOUR
T1 - Tailoring the Performance of Organic Solvent Nanofiltration Membranes with Biophenol Coatings
AU - Fei, Fan
AU - Le Phuong, Hai Anh
AU - Blanford, Christopher Francis
AU - Szekely, Gyorgy
PY - 2019
Y1 - 2019
N2 - This study reports a systematic investigation of fine-tuning the filtration performance of nanofiltration membranes with biophenol coatings to produce solvent-resistant membranes with 390–1550 g mol–1 molecular weight cut-off (MWCO) and 0.5–40 L m–2 h–1 bar–1 permeance. Six kinds of inexpensive, commercial biophenols (dopamine, tannic acid, vanillyl alcohol, eugenol, morin and quercetin) were subjected to identical oxidant-promoted polymerization to coat six kinds of loose asymmetric membrane supports: polyimide (PI), polyacrylonitrile (PAN), polysulfone (PSf), polyvinylidene difluoride (PVDF), polybenzimidazole (PBI) and polydimethylsiloxane (PDMS). The coatings were characterized by Fourier-transform infrared spectroscopy (FTIR), and the morphologies were characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The long-term stability of 42 membranes were tested in 12 organic solvents including emerging green solvents MeTHF and Cyrene. The biophenol coatings led to tighter membranes with a decrease in MWCO of 12–79% at a penalty of 22–92% permeance decrease in acetone
AB - This study reports a systematic investigation of fine-tuning the filtration performance of nanofiltration membranes with biophenol coatings to produce solvent-resistant membranes with 390–1550 g mol–1 molecular weight cut-off (MWCO) and 0.5–40 L m–2 h–1 bar–1 permeance. Six kinds of inexpensive, commercial biophenols (dopamine, tannic acid, vanillyl alcohol, eugenol, morin and quercetin) were subjected to identical oxidant-promoted polymerization to coat six kinds of loose asymmetric membrane supports: polyimide (PI), polyacrylonitrile (PAN), polysulfone (PSf), polyvinylidene difluoride (PVDF), polybenzimidazole (PBI) and polydimethylsiloxane (PDMS). The coatings were characterized by Fourier-transform infrared spectroscopy (FTIR), and the morphologies were characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The long-term stability of 42 membranes were tested in 12 organic solvents including emerging green solvents MeTHF and Cyrene. The biophenol coatings led to tighter membranes with a decrease in MWCO of 12–79% at a penalty of 22–92% permeance decrease in acetone
U2 - 10.1021/acsapm.8b00161
DO - 10.1021/acsapm.8b00161
M3 - Article
SN - 2637-6105
JO - ACS Applied Polymer Materials
JF - ACS Applied Polymer Materials
ER -