Functionalized polymeric smart membrane for remediation of emerging environmental contaminants from industrial sources: Synthesis, characterization and potential applications

Saini, Bharti; Sinha, Manish Kumar; Dey, Anirban

doi:10.1016/j.psep.2022.03.075

Cited by 17 publications

(3 citation statements)

References 168 publications

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“…The control of inorganic fouling or scaling by the modified RO membranes can be attributed to the ability of polymer antiscalant to inhibit mineral scaling on the membrane [40,41]. Moreover, membrane surface properties also influence membrane fouling [42]. Most of the existing research has shown that the hydrophobic membrane is more prone to membrane fouling, and therefore, hydrophilization of the membrane is recommended to inhibit fouling [37,43].…”

Section: Inorganic Fouling Testmentioning

confidence: 99%

Optimization of Polyacrylic Acid Coating on Graphene Oxide-Functionalized Reverse-Osmosis Membrane Using UV Radiation through Response Surface Methodology

Ashfaq

Al-Ghouti

2022

Polymers

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Reverse osmosis (RO) is affected by multiple types of fouling such as biofouling, scaling, and organic fouling. Therefore, a multi-functional membrane capable of reducing more than one type of fouling is a need of the hour. The polyacrylic acid and graphene oxide (PAA-GO) nanocomposite functionalization of the RO membrane has shown its effectiveness against both mineral scaling and biofouling. In this research, the polyacrylic acid concentration and irradiation times were optimized for the PAA-GO-coated RO membrane using the response surface methodology (RSM) approach. The effect of these parameters on pure water permeability and salt rejection was investigated. The models were developed through the design of the experiment (DoE), which were further validated through the analysis of variance (ANOVA). The optimum conditions were found to be: 11.41 mg·L−1 (acrylic acid concentration) and 28.08 min (UV activation times) with the predicted results of 2.12 LMH·bar−1 and 98.5% NaCl rejection. The optimized membrane was prepared as per the model conditions, which showed an increase in both pure water permeability and salt rejection as compared to the control. The improvement in membrane surface smoothness and hydrophilicity for the optimized membrane also helped to inhibit mineral scaling by 98%.

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Section: Inorganic Fouling Testmentioning

confidence: 99%

Optimization of Polyacrylic Acid Coating on Graphene Oxide-Functionalized Reverse-Osmosis Membrane Using UV Radiation through Response Surface Methodology

Ashfaq

Al-Ghouti

2022

Polymers

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“…Also, continuous membrane separation is easy for customized integration with other well-known purification and separation techniques. Due to their energy efficiency, ease of fabrication, and ability to perform selective functions, polymeric membranes have often been used in adsorption and removal methods. , Additional advantages of the membrane technology system over conventional approaches are the efficient and compact module layout, reduced energy use, and cheaper cost. The literature suggests that polysulfone (PSf) is an excellent candidate for synthesizing mixed matrix membranes (MMMs) because of its exceptional thermal endurance, chemical resilience in alkaline conditions, and superior resistance to hydrolysis and oxidation .…”

Section: Introductionmentioning

confidence: 99%

Ravenna Grass-Extracted Alkaline Lignin-Based Polysulfone Mixed Matrix Membrane (MMM) for Aqueous Cr(VI) Removal

Dhara

Samanta

Das

et al. 2023

ACS Appl. Polym. Mater.

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Studies have suggested that ecofriendly, inexpensive, and renewable material sources are essential for developing scalable, high-performance mixed matrix membranes (MMMs). With the fact that the second-most prevalent biomacromolecule in the world of plant biology is lignin, this article delineates the effective fabrication of a lignin-based MMM utilizing polysulfone (PSf) as the base material. The influence of PSf and the lignin concentration on the properties of the fabricated membranes was examined. Also, the developed membranes were assessed for surface morphology, roughness, thickness, thermal stability, functional groups, elemental composition, mechanical strength, and hydrophilicity. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) studies showed that the PSf/lignin membranes possessed a rough and inconsistent morphology and comparatively greater surface porosity. The water contact angle was reduced for the 1.0 wt % PSF/ lignin membrane. Furthermore, lignin nanoparticles significantly impacted the membrane surface characteristics and decreased the ζ potential. Under the ideal experimental scenario, M2 (0.5 wt % lignin/PSf) and M3 (1.0 wt % lignin/PSf) membranes demonstrated good pure water flux values and a higher removal of 98.5 and 98.75% of Cr(VI), respectively. EDX analysis of the membranes after filtration affirmed the effective Cr(VI) removal from water. Owing to its low cost, green credentials, simplicity in synthesis, and remarkable efficiency, the newly developed PSf/lignin membrane is best suited for removing Cr(VI) and various other related contaminants from discharge aqueous effluents.

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“…Membrane technologies (micro-, ultra-, and nanofiltration, membrane distillation, and reverse osmosis) are widely used in the petrochemical, pharmaceutical, food, and other industries [ 2 , 3 ]. One of the extensively used membrane materials designated for micro- and ultrafiltration is polyvinylidene fluoride (PVDF) [ 4 , 5 ] which possesses a thermoplastic behavior, high thermal and mechanical stability performance, excellent chemical resistance, UV resistance, and electroactive properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of Polyvinylidene Fluoride Membrane Production Conditions on Its Structure and Performance Characteristics

et al. 2022

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Poly (vinylidene fluoride) membranes were prepared by freeze-casting. The effects of PVDF concentration, and freezing temperature on the morphology, crystallization, and performance of prepared membranes were examined. Polymer concentration was varied from 10 to 25 wt%. The freezing temperature was varied from −5 to −25 °C. Dimethyl sulfoxide (DMSO) and distilled water were used as solvents and non-solvents, respectively. The first step of this study was devoted to estimating the optimal concentration of PVDF solution in DMSO. Membranes prepared at different ratios were characterized using physical and mechanical characteristics and porosity. The second step was to optimize the time required for the production of the membranes. In the third step, it was shown that the freezing temperature had a remarkable effect on the morphology of the membranes: as the temperature decreases, there is a transition from spherulite structures to interconnected pores. It was shown that the diversity in the pore pattern for PVDF affects remarkably the water permeability through the polymer membrane. During the monitoring of the spread of crystallized areas during the formation of the membrane, it was found that the crystallization of the solvent begins at localized points of the microscale, further crystallized areas spread radially or unevenly along the surface of the solution, forming contact borders, which can lead to changes in the properties of the membrane in its area.

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Functionalized polymeric smart membrane for remediation of emerging environmental contaminants from industrial sources: Synthesis, characterization and potential applications

Cited by 17 publications

References 168 publications

Optimization of Polyacrylic Acid Coating on Graphene Oxide-Functionalized Reverse-Osmosis Membrane Using UV Radiation through Response Surface Methodology

Optimization of Polyacrylic Acid Coating on Graphene Oxide-Functionalized Reverse-Osmosis Membrane Using UV Radiation through Response Surface Methodology

Ravenna Grass-Extracted Alkaline Lignin-Based Polysulfone Mixed Matrix Membrane (MMM) for Aqueous Cr(VI) Removal

Effect of Polyvinylidene Fluoride Membrane Production Conditions on Its Structure and Performance Characteristics

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