Superior fouling resistant PVDF membrane with enhanced filtration performance fabricated by combined blending and the self-polymerization approach of dopamine

Muchtar, Syawaliah; Wahab, Mukramah Yusuf; Mulyati, Sri; Arahman, Nasrul; Riza, Medyan

doi:10.1016/j.jwpe.2019.02.012

Cited by 45 publications

(30 citation statements)

References 39 publications

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“…Therefore, during the immersion–precipitation process, the polydopamine particles contained in the membrane tend to be attracted to the membrane surface (water-reach phase) or even leached out into the water (bulk or polymer-lean phase). The particles detached from the membrane system leave marks on the surface of the membrane film in the form of pores [ 36 , 41 ]. Figure 4 also shows that the concentration of the dopamine influences the surface morphology of the membrane in which the higher dosing of the dopamine in the casting solution, the more abundant and the larger the pores formed.…”

Section: Resultsmentioning

confidence: 99%

“…The dense surface characteristic causes HA to accumulate easily and rapidly on the membrane material causing a total flux loss ( R t ) of 40.94%. Even after backwashing, only 7.89% of the initial water flux was recovered, most likely due to the strong hydrophobic–hydrophobic interaction between the surface of the M 0 and HA molecules [ 36 , 47 ].…”

Section: Resultsmentioning

confidence: 99%

“…The filtration experiment was conducted according to the procedure reported in our previous work [ 36 ] and was done using the same set-up. In brief, the filtration test was carried out in the following three stages: filtration of DI water to obtain pure water flux ( J 1 ) followed by filtration of 50 ppm HA solution to obtain the water flux of HA solution ( J HA ) immediately followed by backwashing using pure water.…”

Section: Methodsmentioning

confidence: 99%

“…Besides those oxidants, it has also been reported that hydrogen peroxide (H 2 O 2 ) is an excellent oxidizing agent for dopamine polymerization. It was used for polymerization of melanin for hair dye and recently used to trigger the growth of polydopamine for membrane coating [ 35 , 36 , 37 ] but not on-site during membrane fabrication.…”

Section: Introductionmentioning

confidence: 99%

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One-Pot Polymerization of Dopamine as an Additive to Enhance Permeability and Antifouling Properties of Polyethersulfone Membrane

et al. 2020

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This paper reports the fabrication of polyethersulfone membranes via in situ hydrogen peroxide-assisted polymerization of dopamine. The dopamine and hydrogen peroxide were introduced into the dope solution where the polymerization occurred, resulting in a single-step additive formation during membrane fabrication. The effectivity of modification was evaluated through characterizations of the resulting membranes in terms of chemical functional groups, surface morphology, porosity, contact angle, mechanical strength and filtration of humic acid solution. The results confirm that the polydopamine was formed during the dope solution mixing through peroxide-assisted polymerization as proven by the appearance of peaks associated OH and NH groups in the resulting membranes. The presence of polydopamine residual in the membrane matric enhances the pore properties in terms of size and porosity (by a factor of 10), and by lowering the hydrophilicity (from 69° to 53°) which leads to enhanced filtration flux of up to 217 L/m2 h. The presence of the residual polydopamine also enhances membrane surface hydrophilicity which improve the antifouling properties as shown from the flux recovery ratio of > 80%.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

One-Pot Polymerization of Dopamine as an Additive to Enhance Permeability and Antifouling Properties of Polyethersulfone Membrane

et al. 2020

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“…Membranes 2020, 10, 17 2 of 12 microorganisms in water [1][2][3] as it offers many advantages including low energy consumption, easy operation, and produces high quality of water [4,5]. Polyethersulfone (PES) is one of the commonly used polymers in the fabrication of nanofiltration (NF), ultrafiltration (UF), and microfiltration (MF) membranes.…”

Section: Introductionmentioning

confidence: 99%

Production of High Flux Poly(Ether Sulfone) Membrane Using Silica Additive Extracted from Natural Resource

et al. 2020

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This paper reports the application of silica derived from natural biomasses of rice husk and bagasse ashes as membrane modifying agents. The modification was conducted on poly(ether sulfone) (PES) membrane by blending the silica into the dope solution. The modification was aimed to improve the structure and hydraulic performance of the resulting PES membrane. The effects of silica addition to the membrane system were evaluated through the analysis of change in chemical structure using ATR-FTIR, surface morphological change using AFM, and surface hydrophilicity using water contact angle measurement. SEM and AFM images show the silica loading significantly affects the membranes morphologies. Silica loading also promotes hydrophilic property as shown by the decrease in water contact angles from 82° to 52–60° due to the presence of polar groups in some residual silica in the membrane matrix. Silica blending also leads to the formation of membranes with higher permeability of up to three folds but lower humic acid rejection (78–62%). The findings indicate the role of silica to enhance the membrane pore size. The ability of membrane to reject humic acid (of 0.8 nm minimum diameter) indicating that the resulting membranes were in between tight ultrafiltration and nanofiltration type. Nonetheless, applying too-high silica concentration decreased the humic acid rejection most likely due to over enlargement of the membrane pore size.

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Enhancing the Performance of Ultrafiltration (UF) Membranes with the Aid of Functional Coatings

Sen,

Das,

Ghosh

et al. 2024

Functional Coatings for Biomedical, Energy, and Environmental Applications

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Superior fouling resistant PVDF membrane with enhanced filtration performance fabricated by combined blending and the self-polymerization approach of dopamine

Cited by 45 publications

References 39 publications

One-Pot Polymerization of Dopamine as an Additive to Enhance Permeability and Antifouling Properties of Polyethersulfone Membrane

One-Pot Polymerization of Dopamine as an Additive to Enhance Permeability and Antifouling Properties of Polyethersulfone Membrane

Production of High Flux Poly(Ether Sulfone) Membrane Using Silica Additive Extracted from Natural Resource

Enhancing the Performance of Ultrafiltration (UF) Membranes with the Aid of Functional Coatings

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