High-performance ultrafiltration membranes based on polyethersulfone–graphene oxide composites

Jin, Fengmin; Lv, Wei; Zhang, Chen; Li, Zhengjie; Su, Rongxin; Qi, Wei; Yang, Quan‐Hong; He, Zhimin

doi:10.1039/c3ra42908c

Cited by 86 publications

(87 citation statements)

References 23 publications

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“…Wang et al 19 Similar results were observed in polyethersulfone (PES)-GO 20 and polysulfone (PS)-GO 26 composite membranes. In addition to the bare GO, functionalized GO nanoparticles as membrane fillers were also reported [27][28][29][30] .…”

Section: Introductionsupporting

confidence: 77%

Simultaneously covalent and ionic bridging towards antifouling of GO-imbedded nanocomposite hollow fiber membranes

et al. 2015

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A group of GO-imbedded nanocomposite hollow fiber membranes was investigated for oily water treatment, with the objectives of improving GO-polymer interfacial interaction and membrane anti-fouling properties via the formation of a simultaneously covalent and ionic inter-network. 1-Methylnicotinamide chloride (MNA) was selected to bridge the two parties.The reaction scheme was proposed and evidenced by FTIR and XRD analyses. The resultant membranes were systematically studied with respect to membrane microstructure, ultrafiltration performance and fouling behaviors. The responses of the membranes to oilwater fouling were evaluated by the resistance-in-series model and cyclic UF experiments with periodic backwashing. It appears that the membrane with a GO:MNA ratio of 9:1 was found to exhibit the most favorable properties for oil-water separation. Substantial reductions in reversible, irreversible and adsorption-induced resistances as well as flux drop were observed. Generally, the superior anti-fouling properties of the nanocomposite membrane benefit from the contributions of (1) the hydrophilic nature of GO and MNA, (2) appropriate GO:MNA ratio and (3) synergetic effects between GO and MNA to overcome the interfacial voids and produce a balanced membrane structure. In addition to unveiling the importance of interfacial interaction between GO nanofillers and polymer matrices, this work may pave the way to design advanced GO-imbedded anti-fouling nanocomposite membranes for the years to come.

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Section: Introductionsupporting

confidence: 77%

Simultaneously covalent and ionic bridging towards antifouling of GO-imbedded nanocomposite hollow fiber membranes

et al. 2015

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“…with membranes. 14,25,27,30 This phenomenon was obtained for membranes containing increased amount of GO nanosheets (%). Accordingly, the difference in the adsorbed amounts of BSA among the membranes at pH = 3 may be attributed to the coupling effect of membrane hydrophilicity, membrane charge and membrane morphology.…”

Section: Membrane Permeabilitymentioning

confidence: 75%

“…27,28,36 The detailed procedure for synthesis of GO nanosheets is given in Section S2, Supporting Information. FTIR spectrum for GO nanosheets was recorded as depicted in Fig.…”

Section: Synthesis Of Graphene Oxide Nanosheetsmentioning

confidence: 99%

Quaternized polysulfone and graphene oxide nanosheet derived low fouling novel positively charged hybrid ultrafiltration membranes for protein separation

et al. 2015

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Low fouling novel positively charged hybrid ultrafiltration membranes with adjustable charge density were fabricated from blends of polysulfone (PSf) and quaternized polysulfone (QPSf) in combination with varied fractions of graphene oxide (GO) nanosheets by a non-solvent induced phase separation method. Fourier transform infrared spectroscopy in the attenuated total reflection mode, scanning electron microscopy, outer surface zeta potential and contact angle studies were conducted to characterize the morphologies of hybrid membranes, structures, charge and surface properties. Results confirmed the fabrication of porous, hydrophilic and positively charged membranes. The water permeabilities (flux) andantifouling ability of membranes with protein solution were dependent on the fraction of quaternary ammonium groups and GO nanosheets in the membranes matrix. Antifouling ability of membranes was improved after the incorporation of GO nanosheets. In addition, 2 irreversible protein fouling of membranes was substantially decreased with increasing fraction of GO nanosheets (%). The transmission of protein as a function of solution pH and the fraction of GO nanosheets (%) in the membranes was studied for two model proteins (bovine serum albumin; BSA or lysozyme; LYZ). The transmission of BSA or LYZ was controlled by size exclusion and the fraction of GO nanosheets in the membranes matrix. The highest transmission of proteins at their isoelectric points was obtained for membrane containing 2 wt% of GO nanosheets to total weight of polymers.

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“…Graphene has notably ing fouling of membrane [34,35]. Jin et al prepared the PES/GO composite ultrafiltration membranes by phase inversion method [35]. Both the hydrophilicity and water flux of the modified PES membranes were improved.…”

Section: Introductionmentioning

confidence: 99%

“…The latest attention toward nanomaterials is paid to graphene, a single 2D carbon sheet with one-atom-layer thickness [18]. Graphene has notably ing fouling of membrane [34,35]. Jin et al prepared the PES/GO composite ultrafiltration membranes by phase inversion method [35].…”

Section: Introductionmentioning

confidence: 99%

Preparation of graphene oxide modified poly(m-phenylene isophthalamide) nanofiltration membrane with improved water flux and antifouling property

Yang

Zhao

Zhang

et al. 2017

Applied Surface Science

118

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a b s t r a c tPoly (m-phenylene isophthalamide)/graphene oxide (PMIA/GO) composite nanofiltartion (NF) membranes were prepared via a facile phase inversion method. Structures, surface properties and hydrophilicities of the membrane were analyzed using FT-IR, XPS, AFM, SEM, water contact angle and Zeta-potential measurements. FTIR spectra indicated the existence of hydrophilic carboxylic acid and hydroxyl groups in the GO molecules. SEM pictures revealed the large and finger-like micro-voids formed in the sublayer of the NF membranes after adding GO. The zeta-potential and water contact angle results proved that PMIA/GO composite membranes had more negatively charged and greater hydrophilic surfaces. The pure water flux of the PMIA/GO (0.3 wt% GO) composite membrane (125.2 (L/m 2 /h)) was 2.6 times as high as that of the pristine PMIA NF membrane (48.3 (L/m 2 /h)) at 0.8 MPa with slightly higher rejections to all tested dyes and better fouling resistance to bovine serum albumin (BSA). This study gave an effective method for preparing composite PMIA NF membranes with high water flux and excellent antifouling property, which showed potential application in water treatment.

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High-performance ultrafiltration membranes based on polyethersulfone–graphene oxide composites

Abstract: Graphene oxide nanosheets are employed as nanofillers to improve hydrophilicity and antifouling performance of a polymer-based membrane, resulting in high performance ultrafiltration membranes with substantially improved flux.

Cited by 86 publications

References 23 publications

Simultaneously covalent and ionic bridging towards antifouling of GO-imbedded nanocomposite hollow fiber membranes

Simultaneously covalent and ionic bridging towards antifouling of GO-imbedded nanocomposite hollow fiber membranes

Quaternized polysulfone and graphene oxide nanosheet derived low fouling novel positively charged hybrid ultrafiltration membranes for protein separation

Preparation of graphene oxide modified poly(m-phenylene isophthalamide) nanofiltration membrane with improved water flux and antifouling property

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