Methylene blue rejection and antifouling properties of different carbonaceous additives-based polyvinylidene fluoride membrane

Mohamat, Rosmanisah; Bakar, Suriani Abu; Mohamed, Azmi; Muqoyyanah,; Kamal, Siti Nur Elida Aqmar Mohamad; Othman, Mohd Hafiz Dzarfan; Rohani, Rosiah; Mamat, Mohamad Hafiz; Malek, M. F.; Ahmad, Mohd Khairul; Ramakrishna, Seeram

doi:10.1016/j.mtcomm.2023.105862

Cited by 3 publications

(1 citation statement)

References 68 publications

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“…Methylene blue (MB) dye has been tested as an analyte which is utilized in many industrial domains due to its vivid blue colour, especially in paper and textiles. [57][58][59] When appropriately handled for medical and research purposes, MB is considered relatively non-toxic to people. However, its use in higher dosages may harm the environment and human health.…”

Section: Introductionmentioning

confidence: 99%

Polyacrylonitrile as a versatile matrix for gold nanoparticle-based SERS substrates

Sharma,

Kumar,

Yadav

2024

Nanoscale Adv.

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Section: Introductionmentioning

confidence: 99%

Polyacrylonitrile as a versatile matrix for gold nanoparticle-based SERS substrates

Sharma,

Kumar,

Yadav

2024

Nanoscale Adv.

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Highly effective ultrafiltration membranes based on plastic waste for dye removal from water

Mansor,

Abdallah,

Shaban

2024

Water Environment Research

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Applicable and low‐cost ultrafiltration membranes based on waste polystyrene (WPS) blend and poly vinylidene fluoride (PVDF) were effectively cast on nonwoven support using phase inversion method. Analysis was done into how the WPS ratio affected the morphology and antifouling performance of the fabricated membranes. Cross flow filtration of pure water and various types of polluted aqueous solutions as the feed was used to assess the performance of the membranes. The morphology analysis shows that the WPS/PVDF membrane layer has completely changed from a spongy structure to a finger‐like structure. In addition, the modified membrane with 50% WPS demonstrated that the trade‐off between selectivity and permeability is met by a significant improvement in the rejection of the membrane with a reduction in permeate flux due to the addition of PVDF. With a water permeability of 50 LMH and 44 LMH, respectively, the optimized WPS‐PVDF membrane with 50% WPS could reject 81% and 74% of Congo red dye (CR) and methylene blue dye (MB), respectively. The flux recovery ratio (FRR) reached to 88.2% by increasing PVDF concentration with 50% wt. Also, this membrane has the lowest irreversible fouling (Rir) value of 11.7% and lowest reversible fouling (Rr) value of 27.9%. The percent of cleaning efficiency reach to 71%, 90%, and 85% after eight cycles of humic acid (HA), CR, and MB filtration, respectively, for the modified PS‐PVDF (50%–50%). However, higher PVDF values cause the membrane's pores to become clogged, increase the irreversible fouling, and decrease the cleaning efficiency. In addition to providing promising filtration results, the modified membrane is inexpensive because it was made from waste polystyrene, and as a result, it could be scaled up to treat colored wastewater produced by textile industries.Practitioner Points Recycling of plastic waste as an UF membrane for water/wastewater treatment was successfully prepared and investigated. Mechanical properties showed reasonable response with adding PVDF. The modified membrane with 50% PS demonstrated that the trade‐off between selectivity and permeability is met by a significant improvement in the rejection.

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Synergistic Interaction of Ionic Liquid Grafted Poly(vinylidene Fluoride) and Carbon Nanotubes to Construct Water Treatment Membranes with Multiple Separation Properties

Wang,

Liu,

Wang

et al. 2024

Langmuir

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In this study, the dual strategy of 1-butyl-3vinylimidazolium bromide ionic liquid (IL) grafting and carbon nanotubes (CNTs) nanocomposition was applied to modify poly(vinylidene fluoride) (PVDF)-based membranes. The highly hydrophilic/oleophobic and fouling-resistant PVDF-g-IL/CNTs membranes with excellent separation efficiency were obtained by the nonsolvent-induced phase separation method with ethanol− water mixed solution as the coagulation bath. The grafted IL not only generated hydrophilic groups on PVDF chains but also acted together with the CNTs to induce the formation of hydrophilic βcrystalline phase of PVDF, which significantly improved the hydrophilicity and pore structure of the modified PVDF membranes. As a result, the pure water flux of the optimal membrane increased up to 294.2 L m −2 h −1 , which was 5.2 times greater than that of the pure PVDF membrane. Simultaneously, the electrostatic interaction of the positive IL and the integration of CNTs enhanced adsorption sites of the membranes, producing exceptional retention and adsorption of dye wastewater and oil−water emulsion. This study presents a straightforward and efficient approach for fabricating PVDF separation membranes, which have potential applications in the purification of various polluted wastewater.

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Methylene blue rejection and antifouling properties of different carbonaceous additives-based polyvinylidene fluoride membrane

Cited by 3 publications

References 68 publications

Polyacrylonitrile as a versatile matrix for gold nanoparticle-based SERS substrates

Polyacrylonitrile as a versatile matrix for gold nanoparticle-based SERS substrates

Highly effective ultrafiltration membranes based on plastic waste for dye removal from water

Synergistic Interaction of Ionic Liquid Grafted Poly(vinylidene Fluoride) and Carbon Nanotubes to Construct Water Treatment Membranes with Multiple Separation Properties

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