The hydrodynamic permeability and surface property of polyethersulfone ultrafiltration membranes with mussel-inspired polydopamine coatings

Cheng, Chong; Li, Shuang; Zhao, Weifeng; Wei, Qiang; Nie, Shengqiang; Sun, Shudong; Zhao, Changsheng

doi:10.1016/j.memsci.2012.06.045

Cited by 256 publications

(134 citation statements)

References 40 publications

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“…The pore blocking affects the water permeation significantly when PDA or PDOPA is applied in the surface modification of ultrafiltration and nanofiltration membranes. Likewise, Cheng et al [90] used PDA to modify polyethersulfone (PES) ultrafiltration membrane, and they found that the water flux decreased with the increase of deposition time and dopamine concentration, which is caused by the pores blocking on the top surface of membrane. Hence, it is necessary to avoid long-time and high-concentration dopamine deposition on the separation layer if high water flux is preferred for the membranes.…”

Section: As a Surface Modifier By Direct Deposition On Membranementioning

confidence: 99%

Surface engineering of polymer membranes via mussel-inspired chemistry

Yang

Luo

et al. 2015

Journal of Membrane Science

376

202

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Section: As a Surface Modifier By Direct Deposition On Membranementioning

confidence: 99%

Surface engineering of polymer membranes via mussel-inspired chemistry

Yang

Luo

et al. 2015

Journal of Membrane Science

376

202

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“…Numerous efforts have been made in order to improve the property of PES membrane, including surface coating, 5,6 surface grafting polymerization 7,8 and hydrophilic modifier blending. 9, 10 Among these methods, modifier blending appears to be a promising modification method because of its facile operation, high efficiency and low cost.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of a polyethersulfone/polyaniline nanocomposite membrane for ultrafiltration and as a substrate for a gas separation membrane

et al. 2015

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In this work, polyethersulfone (PES)/polyaniline (PANI) nanocomposite membranes were fabricated by immersion precipitation process through incorporation of uniform and welldispersed PANI nanorods. Transmission electron microscope (TEM) and dynamic light scattering (DLS) were used to identify the nanoparticle size and dispersion. The influence of incorporated PANI nanorods on membrane structure was investigated by attenuated total reflectance fourier transform infrared spectroscopy (ATR-FTIR) and scanning electron microscope (SEM). Properties of nanocomposite membrane were evaluated by water contact angle, cross-flow ultrafiltration (UF) and antifouling measurements. The results indicated that the surface pore structure and hydrophilicity of PES membrane were improved by the incorporation of PANI nanorods. PES/PANI nanocomposite membrane showed higher flux and better antifouling property compared to the pure PES membrane without sacrificing the separation performance of BSA protein. Meanwhile, PES/PANI nanocomposite membrane was also used as the substrate to prepare gas separation composite membrane by coating polyvinylamine (PVAm) aqueous solution on the surface. The gas permeation results displayed that the PVAm/PES/PANI composite membrane exhibited higher gas permselectivity for CO 2 /N 2 separation than PVAm/PES composite membrane, which may result from the improved surface porosity of PES/PANI substrate and the improved interface adhesion between the selective layer and the substrate.

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“…2, a broad absorbance between 3600 and 3100 cm À1 is ascribed to N-H/O-H stretching vibrations of the polydopamine coating. Peaks at 1615 and 1502 cm À1 are attributed to the overlap of the C=C resonance vibrations in the aromatic ring and N-H bending vibrations, 22 respectively, which means the bare stainless steel has been covered with poly-dopamine. Compared to the PDA-SS, new absorption bands at 1648 and 1135 cm À1 in the spectrum of PAAm-g-PDA-SS correspond to the C=O and C-N of polyacrylamide.…”

Section: Fourier Transform Ir (Ftir) Spectroscopymentioning

confidence: 99%

UV irradiation grafting of acrylamide onto dopamine-modified 316L stainless steel

et al. 2018

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UV irradiation grafting technique was applied on a modified 316L stainless steel (SS) surface. The SS sheets were first coated with dopamine by dipping in the dopamine solution with KIO 3 and ultrasonication. Then, the acrylamide (AAm) was grafted onto the dopamine-modified SS samples under UV irradiation with ultrasonication, when the ketonediol compound was used as a photoinitiating system. For comparison, the UV irradiation grafting of AAm was also performed without ultrasonication. The structures and morphologies of the samples were examined by Fourier transform IR spectroscopy, atomic force microscopy, and scanning electronic microscopy before and after modification, respectively. Results showed that acrylamide was successfully grafted onto the poly-dopamine-coated SS. The hydrophilicity of the modified samples improved significantly, determined by the water contact angle measurement. Shown by Tafel polarization curves, the corrosion potential of modified SS was positively shifted, which demonstrated that the corrosion resistance was improved.

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The hydrodynamic permeability and surface property of polyethersulfone ultrafiltration membranes with mussel-inspired polydopamine coatings

Cited by 256 publications

References 40 publications

Surface engineering of polymer membranes via mussel-inspired chemistry

Surface engineering of polymer membranes via mussel-inspired chemistry

Preparation and characterization of a polyethersulfone/polyaniline nanocomposite membrane for ultrafiltration and as a substrate for a gas separation membrane

UV irradiation grafting of acrylamide onto dopamine-modified 316L stainless steel

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