Enhanced performance of conductive polysulfone/MWCNT/PANI ultrafiltration membrane in an online fouling monitoring application

Yuan, Xue-Shuang; Guo, Zhiying; Wang, Tao; Rhen, Danielle S.; Wang, Luda; Yuan, Xiao-Tong; Li, Jianxin

doi:10.1016/j.memsci.2019.01.010

Cited by 46 publications

(35 citation statements)

References 38 publications

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“…Teknologi membran banyak diaplikasikan pada bidang pengolahan air maupun energi (Ahmadian-Alam and Mahdavi, 2018; Lee et al, 2017;Park et al, 2015). Polisulfon (PSf) dan Poliviniliden Fluorida (PVDF) merupakan polimer sintetik yang cukup banyak diaplikasikan pada teknologi tersebut (Polisetti and Ray, 2021;Yuan et al, 2019;Zhu et al, 2020). PVDF dipilih sebagai material membran karena beberapa keunggulan yang dimilikinya yaitu ketahanan kimia, sifat termal, dan ketahanan mekanik yang tinggi (Santos et al, 2008).…”

Section: Pendahuluanunclassified

Pengaruh Bentonit terhadap Pembentukan Fasa Polimorf dan Sifat Termal Membran Hibrida Poliviniliden Fluorida/Bentonit

et al. 2021

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Kajian struktur dan degradasi termal pada membran hibrida poliviniliden fluorida (PVDF)/lempung bentonit (BNT) telah dilakukan. Penelitian ini bertujuan mengetahui pengaruh penambahan BNT terhadap pembentukan fasa PVDF dan sifat termalnya. Membran hibrida PVDF/lempung BNT dibuat dengan metode inversi fasa. Membran yang dihasilkan dikarakterisasi dengan attenuated total reflectance fourier transform infrared (ATR-FTIR), x-ray diffraction (XRD), dan differential scanning calorimetry (DSC). Hasil penelitian menunjukkan membran PVDF/BNT memiliki struktur polimorf PVDF fasa α dan β yang terkonfirmasi dari data FTIR dan XRD. Data DSC menunjukkan penurunan nilai titik leleh (Tm) dengan penambahan BNT, dan dengan rentang suhu pelelehan yang lebih kecil. Kristalisasi PVDF terjadi secara isothermal dan adanya BNT menghasilkan titik kristalisasi (Tc) pada suhu yang lebih tinggi dibandingkan membran PVDF murni. Analisis termal dengan DSC memberikan informasi komprehensif pelelehan dan kristalisasi dari polimorf PVDF pada matriks membran.Effect of Bentonite toward Polymorph Phase Formation and Thermal Properties of Polyvinylidene Fluoride/Bentonite Hybrid Membranes. The study of the structure and thermal properties of PVDF/bentonite (BNT) hybrid membranes has been carried out. This study aims to determine the effect of BNT addition on the phase formation and thermal properties of the PVDF. In this study, PVDF/BNT hybrid membranes were prepared through the phase inversion method. The resulting membrane was characterized by Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR), x-ray diffraction (XRD), and differential scanning calorimetry (DSC). The results showed that the PVDF/BNT membrane has a PVDF polymorph structure with α and β phases confirmed by FTIR and XRD data. The DSC data showed that the addition of BNT decrease of the melting point (Tm) and with a smaller melting temperature range. PVDF polymorph crystallization occurs isothermally and the presence of BNT produces a crystallization point (Tc) at a higher temperature than pristine PVDF membrane. Thermal analysis with DSC provides comprehensive information on melting and crystallization of PVDF polymorphs in the membrane matrix.

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Section: Pendahuluanunclassified

Pengaruh Bentonit terhadap Pembentukan Fasa Polimorf dan Sifat Termal Membran Hibrida Poliviniliden Fluorida/Bentonit

et al. 2021

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“…[ 8 ] A recent work reported a layer of carbon nanotubes deposited on a polyethersulfone supporting membrane, which simplified the equivalent electrical circuit model to a three‐component circuit. [ 11 ] Another recent study reported in‐line fouling monitoring using the membrane resistance to show a linear relationship with permeate flux, [ 12 ] which provided a much simpler method to monitor the fouling process on the membrane surfaces for industrial applications.…”

Section: Figurementioning

confidence: 99%

A Conductive Microfiltration Membrane for In Situ Fouling Detection: Proof‐of‐Concept Using Model Wine Solutions

Schon

Travaš-Sejdić

2020

Macromol. Rapid Commun.

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Cross‐flow microfiltration, using a microporous membrane, is a well‐established technique for wine clarification in oenology because of its cost‐effectiveness and high‐throughput. However, membrane fouling remains a significant issue for wine filtration in high‐throughput systems. Herein, an approach for in situ real‐time monitoring of fouling in filtration systems using a conductive filtration membrane and a model fluid for filtration is reported. The membrane is fabricated by embedding poly(3,4‐ethylenedioxythiophene) into an electrospun sulfonated polystyrene‐block‐poly(ethylene‐ran‐butylene)‐block‐polystyrene microporous membrane, producing a conductive microfiltration membrane. Measurement of the resistance of the conductive membrane during filtration with the fouling solutions containing pectin, as one of the major foulants in unfiltered wine and pre‐fermentation grape juice, shows a time‐ and concentration‐dependent response. This work opens a door to new methodology for in situ monitoring of fouling processes in wine and juice filtration systems.

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“…The third type ACF is flexible Janus-typed membrane with dual anisotropic conduction. [16] Yuan, et al [17] synthesized conductive polysulfone/multi-walled carbon nanotubes (MWCNT)/PANI ultrafiltration membrane by loading PANI and carbon nanotubes on a polysulfone substrate, and the synthesized filtration membrane shows high electrical conductivity and water flux. Liu, et al [18] have fabricated polyimide-graphene nanoribbon/carbon nanotube with great stability anisotropic conductive composite film, and the conductance value of the composite film along the array direction of the fibers was 10 6 times higher than that of the direction perpendicular to the array direction.…”

Section: Introductionmentioning

confidence: 99%

“…The third type ACF is flexible Janus‐typed membrane with dual anisotropic conduction [16] . Yuan, et al [17] . synthesized conductive polysulfone/multi‐walled carbon nanotubes (MWCNT)/PANI ultrafiltration membrane by loading PANI and carbon nanotubes on a polysulfone substrate, and the synthesized filtration membrane shows high electrical conductivity and water flux.…”

Section: Introductionmentioning

confidence: 99%

2D Dual Anisotropic Conductive Janus Nanostrips Array Pellicle and Derivative 3D Janus‐structural Pipe Concurrently Endowed with Magnetism and Red‐green Two‐colored Fluorescence

Yang

Tian

et al. 2020

ChemNanoMat

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2D dual anisotropic conductive left-to-right structured special Janus array pellicle (SJAP) synchronously functionalized by red-green two-colored fluorescence and magnetism was constructed by electrospinning. SJAP is assembled by two closely joint films, viz. {[CoFe 2 O 4 /polymethylmethacrylate (PMMA)]@[polyaniline (PANI)/PMMA]}//[Tb (acac) 3 bipy/PMMA] special Janus nanostrip array film as leftside (L-SJAF) and {[CoFe 2 O 4 /PMMA]@[PANI/PMMA]}//[Eu (TTA) 3 (TPPO) 2 /PMMA] special Janus nanostrip array film as right-side (R-SJAF). Microscopically, Janus nanostrip with coaxial//monaxial structure effectively limits three functional substances to their own regions, avoiding adverse impact among conduction, magnetism and fluorescence to achieve enhanced fluorescence and strong anisotropic conduction. Macroscopically, SJAP realizes the division of green and red fluorescence regions, and close binding of L-SJAF and R-SJAF with single anisotropy enables SJAP to obtain dual anisotropic conduction. The high integration of micro and macro portion endues SJAP with dual anisotropic conduction, magnetism and red-green two-colored fluorescence. Two types of 3D Janus-structural pipe were created by curling SJAP, achieving the structural evolution from 1D nanostrip to 2D SJAP then to 3D pipe. The new 3D pipes exhibit identical properties with SJAP. The novel SJAP and 3D pipe have wide prospect in electronic skin. This design theory and technology provide an idea to prepare other polyfunctional materials.

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Enhanced performance of conductive polysulfone/MWCNT/PANI ultrafiltration membrane in an online fouling monitoring application

Cited by 46 publications

References 38 publications

Pengaruh Bentonit terhadap Pembentukan Fasa Polimorf dan Sifat Termal Membran Hibrida Poliviniliden Fluorida/Bentonit

Pengaruh Bentonit terhadap Pembentukan Fasa Polimorf dan Sifat Termal Membran Hibrida Poliviniliden Fluorida/Bentonit

A Conductive Microfiltration Membrane for In Situ Fouling Detection: Proof‐of‐Concept Using Model Wine Solutions

2D Dual Anisotropic Conductive Janus Nanostrips Array Pellicle and Derivative 3D Janus‐structural Pipe Concurrently Endowed with Magnetism and Red‐green Two‐colored Fluorescence

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