The Effect of Synthetic Silica on Ultrafiltration PSf Membrane

Harun, Zawati; Jamalludin, Mohd Riduan; Basri, Hatijah; Shohur, Muhamad Fikri; Rosman, Nurafiqah; Yunos, Muhamad Zaini

doi:10.11113/jt.v65.2342

Cited by 9 publications

(9 citation statements)

References 20 publications

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“…All the composite membrane exhibits the typical symmetric structure with sponge like structure. In the finding of [70], extensive diffusion caused by hydrogen bonding of the non-solvent with membrane functional group as well as hydrophilic properties of PEI has changed the membrane structure to sponge-like formation [74]. The second region as illustrated in Figure 3 shows the porous layer of the membrane.…”

Section: Results and Discussion Ftir Analysismentioning

confidence: 99%

“…Besides, it also exhibits good thermal stability. Thus, several works has been proposed to modified polysulfone membrane with aim to reduce the tendency of membrane foulants as well as improving other properties [70]. These studies involve on the addition of additive, composition formulation, processing variables as well as the study of kinetic and thermodynamic phase inversion.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced permeation performance with incorporation of silver nitrate onto polymeric membrane

Said¹,

Jama’in²,

Sutan³

et al. 2018

JMES

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Enhancing membrane permeation is usually an important parameter in the membrane development for filtration. In this study, polysulfone membrane equipped with different concentration of silver nitrate (0.5-2.0 wt%) were fabricated by phase inversion and later be known as composite membrane (CM) followed by letter (A till F) to indicate membrane composition. This study will investigate the effect of silver nitrate concentration to membrane permeation. Membrane morphology was investigated via scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). Based on SEM examination, all composite membrane exhibits sponge-like structure otherwise FTIR for composite membrane with silver nitrate (CM B till CM E) shows additional peak at 1149.57 and 1294.24 indicating silver nitrate presence. In permeability test, composite membrane (CM C) with 1.0wt% silver nitrate achieved 22.25 L/m 2 .h of flux, the highest among all the composite membrane configuration. Thus, the result implied the addition of silver nitrate can increase permeation performance though excessive content may reduce the performance up to 50% of flux reduction. This work provides a better understanding of silver nitrate implication toward membrane permeability therefore provide an insight to any application of silver nitrate in membrane composition.

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Section: Results and Discussion Ftir Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced permeation performance with incorporation of silver nitrate onto polymeric membrane

Said¹,

Jama’in²,

Sutan³

et al. 2018

JMES

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show abstract

“…The structure of the obtained membranes is governed by the physical and chemical properties of the nanoparticles, polymer matrix, and method of nanoparticle incorporation. [2][3][4][5] One of the most common materials used in the preparation of polymer and nanocomposite membranes is polysulfone (PSF), which forms porous asymmetric structures, characterized by good mechanical, thermal, and chemical stability. 2,3 In recent years, in order to modulate PSF properties and match these to certain application different combinations of filler/PSF were proposed.…”

Section: Introductionmentioning

confidence: 99%

“…Adding TiO 2 or SiO 2 to PSF showed an increase of skin layer thickness of the membrane and suppressed macrovoids formation while adding zirconium dioxide induced higher surface porosity. [4][5][6] Carbonaceous fillers were also used to prepare nanocomposite membranes. 7,8 PSF was embedded with multiwall carbon nanotubes 7 or graphene oxide (GO).…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of polysulfone/ammonia-functionalized graphene oxide composite membrane material

Ioniță

Pandele

Crică

et al. 2015

High Performance Polymers

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The study highlights the first use of ammonia-functionalized graphene oxide (GO-NH2) as an additive to enhance the features of polysulfone (PSF) matrix. Composite membrane materials with different ratios of GO-NH2 (0.25, 0.5, 1, and 1.5 wt%) were obtained by phase inversion method. Subsequently structural and morphological characteristics were investigated by Raman spectroscopy, X-ray diffraction (XRD), scanning, and transmission electron microscopy (TEM). Lastly, mechanical and thermogravimetric studies were performed in order to establish whether GO-NH2 addition influenced PSF/GO-NH2 composite material performance. Raman spectroscopy, XRD, and TEM revealed evenly dispersed GO-NH2 within PSF/GO-NH2 composite membrane material forming exfoliated structures for lower concentration of GO-NH2. An enhancement in both mechanical and thermal characteristics was attained. The decomposition temperature at which the mass loss is 3%, of the composite membrane material with 1 wt% GO-NH2 was increased with 7°C. Conversely, an increase in Young’s modulus from 246 MPa to 285 MPa was achieved with the addition of 1 wt% GO-NH2 within the PSF matrix.

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“…Also, Jin et al 33 found that silica nanoparticles enhanced thermal resistance, hydrophilicity, and flux of the ultrafiltration membranes. Harun et al 34 investigated the effect of synthetic silica with different concentrations on the morphology and performance of PSF membranes. By embedding 2 wt % of silica a high PWF and a high solute rejection were achieved simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Improving the Transport and Antifouling Properties of Poly(vinyl chloride) Hollow-Fiber Ultrafiltration Membranes by Incorporating Silica Nanoparticles

Saberi¹,

Shamsabadi

Shahrooz

et al. 2018

ACS Omega

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Poly(vinyl chloride) (PVC)/SiO 2 nanocomposite hollow-fiber membranes with different nano-SiO 2 particle loadings (0–5 wt %) were fabricated using the dry-jet wet-spinning technique. Effects of SiO 2 nanoparticles on the morphology of the prepared hollow-fiber membranes were investigated using scanning electron microscopy. Transport and antifouling properties of the fabricated membranes were evaluated by conducting pure-water permeation, solute rejection, and fouling resistance experiments. These studies indicated that incorporating silica nanoparticles into the PVC matrix during phase inversion lowers the hydraulic resistance through the membrane and narrows the selective membrane pores. Moreover, the nanocomposite membranes showed better antifouling properties compared to the pristine membrane during the ultrafiltration of a milk solution because of improved hydrophilicity and uniform dispersion of the nanoparticles. This work indicates that embedding silica nanoparticles into the PVC matrix is a promising method for producing cost-effective hollow-fiber ultrafiltration membranes with superior transport and antifouling properties.

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The Effect of Synthetic Silica on Ultrafiltration PSf Membrane

Cited by 9 publications

References 20 publications

Enhanced permeation performance with incorporation of silver nitrate onto polymeric membrane

Enhanced permeation performance with incorporation of silver nitrate onto polymeric membrane

Preparation and characterization of polysulfone/ammonia-functionalized graphene oxide composite membrane material

Improving the Transport and Antifouling Properties of Poly(vinyl chloride) Hollow-Fiber Ultrafiltration Membranes by Incorporating Silica Nanoparticles

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