Novel polyether sulfone/polyethylenimine grafted nano-silica nanocomposite membranes: Interaction mechanism and ultrafiltration performance

Al-Timimi, Dhiyaa A. Hussein; Alsalhy, Qusay F.; AbdulRazak, Adnan A.; Drioli, Enrico

doi:10.1016/j.memsci.2022.120784

Cited by 21 publications

(14 citation statements)

References 41 publications

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“…Also, according to the results of FRR, which is the most important factor for fouling character evaluation, the incorporation of the GO nanosheets promoted the antifouling character of the resultant membranes as well as their separation performance. It is in line with the results of the measured water contact angles, that is, hydrophilicity, and those reported by Hussein Al-Timimi et al (2022) andDiogo Janu ario et al (2020). These results are also in agreement with the observed roughness parameters in the AFM images of the pristine PES membrane as were higher than those of the nanocomposite membranes.…”

Section: Effect Of Go Nanosheet Loading On Dye Removalsupporting

confidence: 93%

“…Furthermore, the preparation method of mixed‐matrix membranes (MMMs), as a new approach to old technology, was also tried to obtain a higher separation performance. These membranes are made of polymers matrix with incorporated an amount of proper inorganic nanomaterials during the membrane preparation process to increase desired membrane properties of separation performance, hydrophilicity, and/or antifouling behavior (Hussein Al‐Timimi et al, 2022). The incorporated particles/nanoparticles include graphene and its derivatives, metal and their oxides, nano‐silica, and carbon nanotubes (CNTs) (Manawi et al, 2016; Vatanpour et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Incorporation of graphene oxide nanosheets into polyethersulfone membranes to improve their separation performance and antifouling characteristics for Congo red removal

Maykhan

Alsalhy

Bakhtiari

2023

Water Environment Research

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Due to worldwide shortage of water sources and, on the other hand, producing a huge amount of contaminated industrial wastewater, there is an urgent need to provide proper treatment processes such as fast‐growing membrane ones. In this study, some nanocomposite nanofilter membranes, as a promising solution for this goal, were fabricated by incorporation of graphene oxide (GO) nanosheets into polyethersulfone (PES) membrane matrix and polyvinylpyrrolidone (PVP) via the method of non‐solvent‐induced phase separation (NIPS) to dedicate them higher separation performance and a higher antifouling tendency. The produced GO nanosheets and the prepared membranes' structure were evaluated by field‐emission scanning electron microscopy (FESEM), X‐ray diffraction (XRD), and atomic force microscopy (AFM) analysis. Then, the separation performance and antifouling characteristics of the prepared pristine and nanocomposite membranes were evaluated at 3 bar, 27°C, and Congo red (CR) dye concentrations of 50, 100, and 200 ppm. The observations revealed that the incorporation of GO nanosheets into the polymer matrix of PES–PVP increases the permeation flux, rejection of CR, and flux recovery ratio (FRR) to the maximum values of 276.4 L/m2.h, 99.5%, and 92.4%, respectively, at 0.4 wt.% loading of GO nanosheets as an optimum filler loading. Practitioner Points Graphene oxide nanosheets were prepared and uniformly incorporated in the polyethersulfone porous membrane. The nanocomposite membranes revealed higher separation performance, that is, permeation flux and dye rejection as 282.5 L/m2.h and 99.5% at 0.4 wt.% loading of GO nanosheets. Flux recovery ratio of the nanocomposite membrane, as their antifouling character, also increased as 92.4%, as the GO nanosheets were incorporated by 0.4 wt.%.

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Section: Effect Of Go Nanosheet Loading On Dye Removalsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Incorporation of graphene oxide nanosheets into polyethersulfone membranes to improve their separation performance and antifouling characteristics for Congo red removal

Maykhan

Alsalhy

Bakhtiari

2023

Water Environment Research

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“…Characteristic peaks of aromatic bands and the stretching of the benzene ring skeleton from polyether sulfone material were presented at 1486 and 1578 cm −1 . 41 Compared to the PESH membrane, the emerged absorption band around 3440 and 1446 cm −1 for fabricated membranes was assigned for the N−H deformation vibration of piperazine. 42 Meantime, a characteristic peak at 1622 cm −1 (C�O) represented the successful formation for the polyamide (PA) layer.…”

Section: Resultsmentioning

confidence: 95%

TiO₂-Decorated Photocatalytic Nanofiltration Membranes for Enhanced Self-Cleaning and Separation Performance

Xie,

Cheng,

Liu

et al. 2023

ACS EST Water

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Advanced nanofiltration (NF) processes have been extensively utilized to handle wastewater generated in the dyeing industry. However, NF membranes inevitably incur fouling issues during their operation procedure. Herein, TiO 2 nanoparticles were employed as an additive in the aqueous phase in an interfacial polymerization (IP) process to fabricate the thin-film nanocomposite (TFN) NF membrane. With the introduction of TiO 2 nanoparticles, a rougher and more hydrophilic membrane surface was obtained. The optimal TFN membrane with 1.5% TiO 2 decoration exhibited a pure water permeability of up to 14.32 L m −2 h −1 bar −1 , which was 1.88 times higher than that of the pristine thin-film composite membrane. Moreover, the obtained NF membrane maintained high rejections toward dye molecules (99.7% for Congo red, 99.5% for reactive blue 19, 99.7% for xylene brilliant cyanin G, and 99.1% for methyl blue), considerable salt rejections (44.5% for NaCl, 91.2% for Na 2 SO 4 , 54.1% for MgCl 2 , and 82.8% for MgSO 4 ), and satisfactory stability during the 72 h long-term operation. The exceptional self-cleaning ability of resultant TFN membranes under UV irradiation offered an inspired method for establishing photocatalytic self-cleaning membrane to treat wastewater.

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“…

where J 0 = the initial water flux of control membrane, J 1 = the solute flux of heavy metal ions and J 2 = the water flux of fouled membrane after cleaning. All measurements are replicates and an average value was presented [ 47 ].…”

Section: Materials and Methodologiesmentioning

confidence: 99%

Novel MXene-Modified Polyphenyl Sulfone Membranes for Functional Nanofiltration of Heavy Metals-Containing Wastewater

et al. 2023

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In this work, MXene as a hydrophilic 2D nanosheet has been suggested to tailor the polyphenylsulfone (PPSU) flat sheet membrane characteristics via bulk modification. The amount of MXene varied in the PPSU casting solution from 0–1.5 wt.%, while a series of characterization tools have been employed to detect the surface characteristics changes. This included atomic force microscopy (AFM), scanning electron microscopy (SEM), contact angle, pore size and porosity, and Fourier-transform infrared spectroscopy (FTIR). Results disclosed that the MXene content could significantly influence some of the membranes’ surface characteristics while no effect was seen on others. The optimal MXene content was found to be 0.6 wt.%, as revealed by the experimental work. The roughness parameters of the 0.6 wt.% nanocomposite membrane were notably enhanced, while greater hydrophilicity has been imparted compared to the nascent PPSU membrane. This witnessed enhancement in the surface characteristics of the nanocomposite was indeed reflected in their performance. A triple enhancement in the pure water flux was witnessed without compromising the retention of the membranes against the Cu2+, Cd2+ and Pd2+ feed. In parallel, high, and comparable separation rates (>92%) were achieved by all membranes regardless of the MXene content. In addition, promising antifouling features were observed with the nanocomposite membranes, disclosing that these nanocomposite membranes could offer a promising potential to treat heavy metals-containing wastewater for various applications.

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Novel polyether sulfone/polyethylenimine grafted nano-silica nanocomposite membranes: Interaction mechanism and ultrafiltration performance

Cited by 21 publications

References 41 publications

Incorporation of graphene oxide nanosheets into polyethersulfone membranes to improve their separation performance and antifouling characteristics for Congo red removal

Incorporation of graphene oxide nanosheets into polyethersulfone membranes to improve their separation performance and antifouling characteristics for Congo red removal

TiO₂-Decorated Photocatalytic Nanofiltration Membranes for Enhanced Self-Cleaning and Separation Performance

Novel MXene-Modified Polyphenyl Sulfone Membranes for Functional Nanofiltration of Heavy Metals-Containing Wastewater

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Novel polyether sulfone/polyethylenimine grafted nano-silica nanocomposite membranes: Interaction mechanism and ultrafiltration performance

Cited by 21 publications

References 41 publications

Incorporation of graphene oxide nanosheets into polyethersulfone membranes to improve their separation performance and antifouling characteristics for Congo red removal

Incorporation of graphene oxide nanosheets into polyethersulfone membranes to improve their separation performance and antifouling characteristics for Congo red removal

TiO2-Decorated Photocatalytic Nanofiltration Membranes for Enhanced Self-Cleaning and Separation Performance

Novel MXene-Modified Polyphenyl Sulfone Membranes for Functional Nanofiltration of Heavy Metals-Containing Wastewater

Contact Info

Product

Resources

About

TiO₂-Decorated Photocatalytic Nanofiltration Membranes for Enhanced Self-Cleaning and Separation Performance