Preparation and characterization of polyvinylidene fluoride/1-butyl-3-methylimidazolium bromide-based ionogel membranes for desalination applications

Iqbal, Tahir; Sahrash, R.; Siddiqa, Asima; Afsheen, Sumera; Tahir, Muhammad Bilal; Khan, Muhammad Isa; Riaz, Khalid; Nabi, Ghulam; Fahad, Muhammad; Sharif, Muhammad; Abrar, M.

doi:10.1007/s13762-019-02207-8

Cited by 10 publications

(8 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Piezoelectric energy harvesting is the most common one where the various mechanical sources are used to generate considerable energies, effective for small electronic devices. , Several methods are used to generate the electroactive piezo-phases in PVDF, such as mechanical stretching or poling or addition of polar piezo-active fillers such as bio-waste fillers, ceramic reinforcing agents, and carbon-based materials which enhance the polar phase in the polymer. ,− There are several instances where ILs are used with PVDF to attain certain properties through a change or transformation in their crystal structures depending upon the choice of the ILs. Addition of ILs leads to a greater interaction between the dipoles of PVDF, which in turn helps the transformation of the nonpolar phase to polar phase. ,, The ability of ILs to transform the non-piezo phase to an electroactive phase is one of the many advantages, which makes it a suitable candidate for the piezoelectric energy-harvesting applications. IL-based fused deposition modeling for direct 3D printing of PVDF-based piezoelectric devices is reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…Addition of ILs leads to a greater interaction between the dipoles of PVDF, which in turn helps the transformation of the nonpolar phase to polar phase. 4,27,28 The ability of ILs to transform the non-piezo phase to an electroactive phase is one of the many advantages, which makes it a suitable candidate for the piezoelectric energy-harvesting applications. IL-based fused deposition modeling for direct 3D printing of PVDF-based piezoelectric devices is reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ionic Liquid-Based Electrospun Polymer Nanohybrid for Energy Harvesting

Tiwari

Gaur

Kumar

et al. 2021

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

Ionic liquid (IL)-based electrospun nanofibers of poly(vinylidene fluoride) (PVDF) are developed through a solution route by varying the IL concentration. A better electrostatic interaction between the polymer and IL is visualized through morphological analysis of fiber dimensions. The incorporation of ILs leads to a better electroactive phase formation, which is established using X-ray diffraction and spectroscopic and thermal characterizations. The rise in the piezo phase leads the mechanistic pathway to incorporate the IL for energy harvesting. Dielectric relaxation is studied, which suggests the rise of dielectric parameters with IL content up to a certain loading, while the dielectric values tend to show an increasing trend at higher temperatures. Electrochemical analysis is performed to correlate the role of IL addition for a better charge transport within the PVDF matrix. The addition of IL increases the ionic conductivity to 0.18 mS cm −1 , as compared to the value of 0.03 mS cm −1 for pristine PVDF. A device is designed using the electrospun scaffold, which produces a high output voltage of 48 V and power density of 47 μW cm −2 , as compared to the values of 20.8 V and 21.2 μW cm −2 , respectively, for pristine PVDF. The fabricated device produces considerable energy at different motions of the human body, justifying its efficacy. The morphological, structural, and mechanical studies corroborate the electrochemical response of the material, explaining the potential of the device for energy harvesting applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ionic Liquid-Based Electrospun Polymer Nanohybrid for Energy Harvesting

Tiwari

Gaur

Kumar

et al. 2021

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

show abstract

“…The weight of the membrane was measured before and after wetting. The following formula was used for calculating solvent content [33].…”

Section: Solvent Contentmentioning

confidence: 99%

Polyvinylidene fluoride nanocomposite super hydrophilic membrane integrated with Polyaniline-Graphene oxide nano fillers for treatment of textile effluents

Nawaz

Umar

Ullah

et al. 2021

Journal of Hazardous Materials

View full text Add to dashboard Cite

Water pollution from the fashion industries containing dyes has become a major source of water pollution. These anthropogenic contaminated waters directly enter irrigation and drinking water systems, causing irreversible environmental damage to human health. Nanomembrane technology has attracted extensive attention to remove these toxic chemicals but new approaches are still required for improving removal efficiency and control the channel size. The work deals with the fabrication of a novel hybrid polyvinylidene fluoride (PVDF)-polyaniline (PANI) membrane with graphene oxide (GO). Incorporation of PANI-GO as a nanofiller has significantly improved antifouling properties and a solvent content of the fabricated membrane. Besides, pure water flux also increases from 112 to 454mLm -2 h -1 indicating the hydrophilic nature of the nanocomposite membrane. Among various compositions, the nanocomposites membrane with 0.1%w/v GO demonstrated a maximum of 98% dye rejection at 0.1MPa operating pressure. After multiple testing of the membrane, the flux recovery ratio reached about 94% and dyes rejection improved with the addition of PANI-GO. The removal efficiency of the composite membrane for Allura red is 98% and for methyl orange is 95%. Based on the above results the PVDF/PANI/GO membranes are recommended for practical use in wastewater treatment, particularly for anionic dyes removal from textile effluents.

show abstract

“…The quantity of any solvent in membranes is referred to as solvent content which was evaluated by the same method used for porosity [35]. The membranes were dipped in solvents (water, methanol, ethanol and propanol) for 1 day.…”

Section: Solvent Contentmentioning

confidence: 99%

Photodegradation of textile pollutants by nanocomposite membranes of polyvinylidene fluoride integrated with polyaniline–titanium dioxide nanotubes

Nawaz

Umar

Nawaz

et al. 2021

Chemical Engineering Journal

View full text Add to dashboard Cite

In this research article, the PVDF (polyvinylidene fluoride)-PANI (polyaniline)-titanium nanotube (TNT) based nanocomposite membranes were synthesised through phase inversion method. The composition and structural properties of nanocomposite membranes were characterised by X-ray photoelectron spectroscopy (XPS), Fouriertransform infrared spectroscopy (FTIR), X-ray diffraction (XRD), atomic force microscopy (AFM) and scanning electron microscope (SEM). The significant properties of synthesised membranes such as distribution of pore size, thermal properties, mechanical properties, and photocatalytic behaviour of membranes were also studied. The hydrophilic properties of the composite membranes increased with filler content (PANI-TNT) and results in improved pure water flux (484.8 ± 2.9 L/m 2 h −1 ) compared to that (312.0 ± 1.91 L/m 2 h −1 ) of the pure PVDF membrane. The pure PVDF and nanocomposite membrane were further analysed in terms of their filtration properties such as adsorption of dyes (methyl orange, Allura red) and UV self-cleaning properties. The newly developed nanocomposite membranes showed excellent pollutant removal efficiency (~90%). The synthesised nanocomposite membranes also showed photocatalytic activities due to the presence of TNTs, and adsorption of methyl orange (MO) reduces significantly with the UV light irradiations. The UV self-cleaning property of the composite membrane was further confirmed due to their high flux recovery ratio of about 94%. The results show that embedded PANI-TNT within nanocomposite was photo-catalytically active and degrade the dye molecules from the surface of the nano composite membrane.

show abstract

Preparation and characterization of polyvinylidene fluoride/1-butyl-3-methylimidazolium bromide-based ionogel membranes for desalination applications

Cited by 10 publications

References 25 publications

Ionic Liquid-Based Electrospun Polymer Nanohybrid for Energy Harvesting

Ionic Liquid-Based Electrospun Polymer Nanohybrid for Energy Harvesting

Polyvinylidene fluoride nanocomposite super hydrophilic membrane integrated with Polyaniline-Graphene oxide nano fillers for treatment of textile effluents

Photodegradation of textile pollutants by nanocomposite membranes of polyvinylidene fluoride integrated with polyaniline–titanium dioxide nanotubes

Contact Info

Product

Resources

About