Progress in the modification of polyvinyl chloride (PVC) membranes: A performance review for wastewater treatment

Ahmad, Tausif; Guria, Chandan

doi:10.1016/j.jwpe.2021.102466

Cited by 67 publications

(22 citation statements)

References 173 publications

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“…The key problem in wastewater treatment utilizing polymer-based membranes is developing low-cost and high-performance antifouling membranes. Membrane fouling lowers the lifespan of membranes [ 1 , 81 , 82 , 83 ]. Real-world membrane use requires the creation of cost-effective wettable polymeric membranes.…”

Section: Antifouling Materials For Polymeric Membranesmentioning

confidence: 99%

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Recent Advances on the Fabrication of Antifouling Phase-Inversion Membranes by Physical Blending Modification Method

et al. 2023

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Membrane technology is an essential tool for water treatment and biomedical applications. Despite their extensive use in these fields, polymeric-based membranes still face several challenges, including instability, low mechanical strength, and propensity to fouling. The latter point has attracted the attention of numerous teams worldwide developing antifouling materials for membranes and interfaces. A convenient method to prepare antifouling membranes is via physical blending (or simply blending), which is a one-step method that consists of mixing the main matrix polymer and the antifouling material prior to casting and film formation by a phase inversion process. This review focuses on the recent development (past 10 years) of antifouling membranes via this method and uses different phase-inversion processes including liquid-induced phase separation, vapor induced phase separation, and thermally induced phase separation. Antifouling materials used in these recent studies including polymers, metals, ceramics, and carbon-based and porous nanomaterials are also surveyed. Furthermore, the assessment of antifouling properties and performances are extensively summarized. Finally, we conclude this review with a list of technical and scientific challenges that still need to be overcome to improve the functional properties and widen the range of applications of antifouling membranes prepared by blending modification.

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Section: Antifouling Materials For Polymeric Membranesmentioning

confidence: 99%

“…Real-world membrane use requires the creation of cost-effective wettable polymeric membranes. The choice of membrane composition and the control of morphological features both have a substantial effect on antifouling properties as they impact the membrane wettability [ 63 , 83 ].…”

Section: Antifouling Materials For Polymeric Membranesmentioning

confidence: 99%

Recent Advances on the Fabrication of Antifouling Phase-Inversion Membranes by Physical Blending Modification Method

et al. 2023

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“…Among the various types of polymers, PVC has a large variety of applications because of its excellent physical properties [ 8 , 9 ]. Recently, PVC polymer nanocomposites have been proposed for optoelectronic applications due to their superior optical characters such as transmittance, fluorescence and tunable refractive index [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

New Hybrid PVC/PVP Polymer Blend Modified with Er2O3 Nanoparticles for Optoelectronic Applications

Alshammari

Ibrahim

et al. 2023

Polymers

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Polymer blend hybrid nanocomposites are of great importance for future optoelectronic applications. This paper presents the preparation of new polymer blend hybrid nanocomposites based on PVC/PVP modified with Er2O3 nanoparticles. A low-cost solution casting method has been used to prepare the polymer nanocomposites at 0.0, 0.1, 0.3 and 0.6 wt% of Er2O3. X-ray diffraction (XRD), Fourier transform infrared (FTIR), Raman spectroscopy, and environmental scanning electron microscopy (ESEM) measurements have all been used to examine the impact of a varying wt% of Er2O3 on the structural and optical characteristics of PVP/PVC polymer blends. The PVC/PVP polymer blend and Er2O3 nanoparticles showed a strong interaction, which was validated by XRD, FTIR, and Raman spectrum investigations. The SEM micrographs showed a remarkable complexation among the components of the polymer nanocomposites. The activation energies for thermal decomposition of PVC/PVP doped with different Er2O3 concentrations were less than that of the pure polymer film. The linear and nonlinear refractive indexes, dispersion energy, optical susceptibility and the energy gap values were found to be Er2O3 concentration-dependent. With an increase in Er2O3 concentration to 0.1 and 0.3 wt%, the dispersion energy and nonlinear refractive index improved, and thereafter decreased when the concentration was further increased to 0.6For the film doped with 0.1 wt% Er2O3, the optical band gap (Eopt) of the composite film enhanced by about 13%. The optical absorption measurements revealed clear improvements with the addition of erbium oxide. Higher refractive index values of PVC/PVP/Er2O3 films qualify the polymer blend as a cladding for electro-optic modulators. Our results indicated that the PVC/PVP/Er2O3 polymer films could be suitable for optoelectronic space applications.

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“…PVC, the world's second‐largest produced resin by volume, is also one of the major polymers used to produce ultrafiltration (UF) membranes because of its low cost, high stiffness, good thermal stability, excellent chemical properties such as high resistance to bases, acids and solvents, robust mechanical strength 22–25 . Furthermore, PVC dissolves readily in common solvents, allowing the nonsolvent induced phase separation (NIPS) approach to produce a porous PVC membrane 26 . Different additives can be used to improve membrane performance.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of polyvinyl chloride membranes and their fouling behavior in water purification

Eryıldız

Keskin

Paşaoğlu

et al. 2022

J of Applied Polymer Sci

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In the present study, polyvinyl chloride (PVC) membranes were used to improve water purification and fouling performance. Porous PVC flat sheet membranes were produced using the phase inversion method. The polymer concentration in casting solution varied from 11 to 17 wt%. Water contact angles, pore size, overall porosity and scanning electron microscopy were used for membrane characterization. The foulants such as bovine serum albumin (BSA) and humic acid (HA) were used to test the membranes' separation performance and fouling resistance. Contact angle increased from 79.6 ± 2.2° to 81.9 ± 1.0° as the polymer concentration increased, while overall porosity decreased from 72.0% to 61.9%. Results showed that BSA and HA permeate flux had similar trend by adding PVC. It was observed that BSA rejection enhanced from 54.8% to 80.7% while HA rejection increased from 76.3% to 88.3% with increasing PVC content. Permeate flux decreased by increase of PVC content due to reduction of porosity and pore size. Besides, the flux recovery ratio, reversible and irreversible fouling studies showed that better fouling observed with increasing of PVC content. The findings of this work show that PVC may be used to improve the separation and antifouling properties for water purification.

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Progress in the modification of polyvinyl chloride (PVC) membranes: A performance review for wastewater treatment

Cited by 67 publications

References 173 publications

Recent Advances on the Fabrication of Antifouling Phase-Inversion Membranes by Physical Blending Modification Method

Recent Advances on the Fabrication of Antifouling Phase-Inversion Membranes by Physical Blending Modification Method

New Hybrid PVC/PVP Polymer Blend Modified with Er2O3 Nanoparticles for Optoelectronic Applications

Preparation and characterization of polyvinyl chloride membranes and their fouling behavior in water purification

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