Development of polyaniline-modified polysulfone nanocomposite membrane

Alam, Javed; Dass, Lawrence Arockiasamy; Alhoshan, Mansour; Ghasemi, Mostafa; Mohammad, Abdul Wahab

doi:10.1007/s13201-011-0021-2

Cited by 47 publications

(31 citation statements)

References 36 publications

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“…Pure water flux of synthesized membranes was calculated on a dead‐end filtration setup (HP4750 Stirred Cell, Sterlitech, USA), with a provision to hold a 4.7 cm diameter membrane. At room temperature, the membranes were compressed for 1 h at constant pressure and then the pure water flux was calculated using Equation :

J = V / true(normalA * normalt true)

where J is pure water flux (L/m 2 h), V is volume of permeated water (L), A is effective membrane area (m 2 ), and t is time (h) necessary to collect permeated water of volume, V. The water permeability was calculated using Equation :

{normalL}_{normalp} = J / Δ P

where L p is water permeability (L/m 2 hkPa), J is pure water flux (L/m 2 h), and ΔP is operational pressure (kPa). The percentage porosity, % ϵ, was determined by measuring the weight loss of the membrane and calculated using Equation …”

Section: Methodsmentioning

confidence: 99%

“…Electrically conductive polymers are used as a part of the thin‐film composite membrane. They can be easily deposited as the coating medium on a wide variety of supporting materials, such as porous metals, filter paper, ion‐exchange membranes, microfiltration membranes, fibres, stainless steel, and polymer membranes . There are several methods reported for the membrane synthesis.…”

Section: Introductionmentioning

confidence: 99%

“…The composite membranes have an advantage of the electrical properties of conductive polymers and mechanical properties of conventional polymers. Due to their superior properties, the composite thin films find wide applications in desalination, industrial waste water treatment, gas separation, electrodialysis, protein separation, dye separation, etc …”

Section: Introductionmentioning

confidence: 99%

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The effect of synthesis parameters on the conductivity of PSf/PANI and PSf/PPy composite membranes

Sontakke¹,

Awate²

2017

Can J Chem Eng

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In the present work, synthesis of PANI and PPy was carried out by chemical oxidative polymerization. The effect of synthesis parameters on the conductivity of the polymers was studied. The synthesized polymers, at optimized conditions of conductivity, were further characterized by XRD, SEM, FTIR, and TGA. Pure polysulphone membrane and its composite with the synthesized conductive membrane were carried out using immersion precipitation phase inversion. The synthesized membranes were characterized by FTIR, confocal microscopy, and TGA. The membranes were compared on the basis of various performance properties. It was observed that the pure water flux and water permeability increased in the order PSf < PSf/PANI < PSf/PPy. The composite membranes showed higher porosity, hydrophilicity, and better anti-fouling characteristics compared to the pure PSf membrane.

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J = V / true(normalA * normalt true)

{normalL}_{normalp} = J / Δ P

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The effect of synthesis parameters on the conductivity of PSf/PANI and PSf/PPy composite membranes

Sontakke¹,

Awate²

2017

Can J Chem Eng

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“…C f and C p are the polyethylene glycol concentrations in the feed solution and permeate solution, respectively [37]. The concentration of PEG was determined based on their absorbency in a UV-spectrophotometer at a wavelength of 535 nm.…”

Section: Membranes Characterizationmentioning

confidence: 99%

Polyaniline Multi-Coated Onto Polyvinylidene Fluoride and Silicon Elastomer for Pressure Filtration Membranes

Ibrahim

Rohani²,

Mohammad³

2016

MJAS

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In this study, silicone rubbers were used to achieve the desire absorbing properties of PANI onto polyvinylidene fluoride (PVDF) microporous support. Poly (methyl-vinyl ether-alt-maleic acid) (PMVEA) polymeric acid was used as acid dopant to enhance the membrane filtration performance. Initially PVDF micro-porous support was dip-coated with silicone rubber elastomer solution followed by deposition with PANI by in-situ chemical oxidative polymerisation techniques using two-compartment cell in presence of PMVEA and ammonium persulfate as the oxidizing agent. The PANI multilayer composite membranes were characterized by gravimetric for PANI content measurement namely Scanning Electron Microscope (SEM), Fourier-Transform Infrared (FTIR), Differential Scanning Calorimetry (DSC) and contact angle. The PANI content was found to be more than 30 %. SEM, FTIR and DSC analysis have confirmed the presence of PANI onto the multilayers membrane while the contact angle of the membrane in presence of high loading PANI was 0 o indicating the super hydrophilicity than without the PANI presence of 78.8 o . The pressure filtration of PANI multilayer composite filtration membrane with a range of polyethylene glycols at different molecular weights was obtained based on the high flux up to 904.11 L/m 2 .h and reasonable molecular weight cut off of below 20,000 g/mol were obtained for the synthesized membrane.Keywords: polyaniline, silicone elastomer, polyvinylidene fluoride, chemical oxidative polymerisation, polymeric acid Abstrak Melaui kajian ini, getah silikon telah digunakan untuk mencapai keinginan menyerap sifat-sifat PANI ke polivinilidin fluorida (PVDF) sokongan mikrobeliang. Poli (vinil metil-eter-alt-asid malik) (PMVEA) asid polimer digunakan sebagai asid pendopan untuk meningkatkan prestasi penapisan membran. Pada mulanya mikro-berliang sokongan PVDF telah disalut dengan larutan elastomer getah silikon diikuti dengan pemendapan PANI oleh teknik pempolimeran kimia oksidatif sel in-situ menggunakan dua bahagian sel dengan kehadiran PMVEA dan ammonium persulfat sebagai agen pengoksidaan. Membran komposit PANI multilapis telah dicirikan secara gravimetrik untuk mengukur kandungan PANI, seperti Mikroskop Imbasan Elektron (SEM), Inframerah Transformasi Fourier (FTIR), kalorimeter pengimbasan pembezaan (DSC) dan sudut sentuhan. Kandungan PANI didapati melebihi 30%. Analsis SEM, FTIR dan DSC telah mengesahkan kehadiran PANI pada membran PANI multilapisan manakala sudut sentuhan membran dengan kehadrian PANI yang tinggi adalah 0 ° menunjukkan keadaan super hidrofilik berbanding tanpa kehadiran PANI adalah 78.8 °. Tekanan penapisan membran komposit PANI multilapis dengan pelbagai julat polietilena glikol pada berat molekul yang berbeza telah diperolehi berdasarkan fluks yang tinggi sehingga 904.11 L/m 2 .h dan berat molekul yang munasabah iaitu di bawah 20.000 g/mol bagi membran yang telah di sintesis.Kata kunci: polianilin, elastomer silikon, polivinilidin fluorida, pempolimeran oksidatif kimia, asid polimer

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“…Extensive research works have been carried out to develop NF/UF membranes that can be used to fulfill the above separations [4][5][6][7][8][9][10][11][12]. Although commercial polymeric membranes are readily available in the market such as cellulose acetates, polyethersulfones, polysulfones, and polyacrylonitrile, but these membranes usually have fixed physico-chemical properties which limit any separation to the fixed selectivity of their constituents [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Durable pressure filtration membranes based on polyaniline–polyimide P84 blends

Yusoff

Rohani

Zaman

et al. 2018

Polymer Engineering & Sci

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A pressure filtration membrane from conducting polymer polyaniline (PANI) is known to possess low mechanical strength and thermal stability. Therefore, it is believed that the properties of the membrane can be enhanced by blending PANI with a conventional polymer like polyimide (PI), which possesses high mechanical strength and thermal stability. A thermal analysis revealed that polymer chain of blend membranes started to break beyond the melting temperature of pure PANI membrane indicating that the addition of PI hindered the degradation of PANI and thus slowed down the decomposition process. Mechanical tests further showed that PANI/PI membrane had a tensile strength that was 60% higher than pure PANI membrane. Furthermore, the surface hydrophilicity and negativity of the blend membrane increased as it was doped in acid, thereby reflecting the exploitation of advantages of both polymers. Rejection at various molecular ranges of PEGs showed that PANI/PI membrane was initially in the ultrafiltration (UF) range, but later fell into the nanofiltration (NF) range when an acid dopant was introduced to the membrane. According to the long‐term filtration performance, the PANI/PI membrane was able to sustain a rejection of up to 99% in Congo red solution with just a slight reduction in flux. POLYM. ENG. SCI., 59:E82–E92, 2019. © 2018 Society of Plastics Engineers

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Development of polyaniline-modified polysulfone nanocomposite membrane

Cited by 47 publications

References 36 publications

The effect of synthesis parameters on the conductivity of PSf/PANI and PSf/PPy composite membranes

The effect of synthesis parameters on the conductivity of PSf/PANI and PSf/PPy composite membranes

Polyaniline Multi-Coated Onto Polyvinylidene Fluoride and Silicon Elastomer for Pressure Filtration Membranes

Durable pressure filtration membranes based on polyaniline–polyimide P84 blends

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