A facile TiO2/PVDF composite membrane synthesis and their application in water purification

Zhang, Wei; Zhang, Yiming; Fan, Rong; Lewis, Rosmala

doi:10.1007/s11051-015-3281-1

Cited by 22 publications

(17 citation statements)

References 37 publications

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“…Meanwhile, the PES nanofiber substrate thickness is also in proportion to PES concentration. The thicker substrates would increase the whole mass transfer resistance of the membrane in filtration process according to Pan et al …”

Section: Resultsmentioning

confidence: 99%

Fabrication of innovative forward osmosis membranes via multilayered interfacial polymerization on electrospun nanofibers

Huang

Meng

et al. 2018

J of Applied Polymer Sci

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Practical application of forward osmosis (FO) membranes is beset by low water flux and vulnerability of selective polyamide (PA) layers. Herein, novel composite membranes were fabricated with multilayered PA via cyclic interfacial polymerization (IP) on electrospun polyethersulfone (PES) nanofiber substrates to realize high performance FO. The membrane fabrication conditions were optimized detailedly with respect to the morphologies, physicochemical properties, and FO performances. It is indicated that the PES concentration has great impacts on the morphology, thickness, and fiber diameter of the electrospun substrates and the optimal concentration is proved to be 26 wt %. After multilayered IP, the membrane thickness, surface hydrophilicity, and mechanical strength increased with IP cycles. The optimized FO membranes with two PA layers show much higher water flux and membrane selectivity compared with the commercial thin film composite membranes, holding great promise for water purification and seawater desalination.

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Section: Resultsmentioning

confidence: 99%

Fabrication of innovative forward osmosis membranes via multilayered interfacial polymerization on electrospun nanofibers

Huang

Meng

et al. 2018

J of Applied Polymer Sci

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“…Particularly, water flux was improved by 19% compared with controlled TFC membrane. Recently, the preparation of hydrothermally TiO 2 nanofibers (inserted into PVDF membranes) under alkali conditions was successfully performed by Zhang et al [ 161 ]. Moreover, Nor et al [ 155 ] proposed novel flat sheet PVDF nanocomposite membrane with TiO 2 nanofibers prepared via hot pressing method.…”

Section: Titanium Dioxide (Tio 2 )mentioning

confidence: 99%

Progress of Nanocomposite Membranes for Water Treatment

et al. 2018

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The use of membrane-based technologies has been applied for water treatment applications; however, the limitations of conventional polymeric membranes have led to the addition of inorganic fillers to enhance their performance. In recent years, nanocomposite membranes have greatly attracted the attention of scientists for water treatment applications such as wastewater treatment, water purification, removal of microorganisms, chemical compounds, heavy metals, etc. The incorporation of different nanofillers, such as carbon nanotubes, zinc oxide, graphene oxide, silver and copper nanoparticles, titanium dioxide, 2D materials, and some other novel nano-scale materials into polymeric membranes have provided great advances, e.g., enhancing on hydrophilicity, suppressing the accumulation of pollutants and foulants, enhancing rejection efficiencies and improving mechanical properties and thermal stabilities. Thereby, the aim of this work is to provide up-to-date information related to those novel nanocomposite membranes and their contribution for water treatment applications.

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“…21 Given the high temperature and high pressure in the hydrothermal synthesis of LDHs, poly(vinylidene uoride) (PVDF) electrospun nanobers were oen selected as a growth template with the advantages of exibility, superior mechanical strength and outstanding thermal stability. 22 Although Sailaja et al have successfully grown LDH layered nanocrystals on the surface of PVDF electrospun substrate acting as an anion conducting membrane, its morphological tunability remains unclear. 23 Here, we fabricated several forms of self-standing PVDF@LDH composite bers with LDH layered nanocrystals anchored on the surface of PVDF nanobers through different hydrothermal treatment conditions.…”

Section: +mentioning

confidence: 99%

“…excellent heat resistance and mechanical properties. 22 The thickness of the membrane used in this experiment was about 50-60 mm. Fig.…”

Section: Growth Mechanism Of Ldhs With Various Metal Salt Anionsmentioning

confidence: 99%

Morphological control of poly(vinylidene fluoride)@layered double hydroxide composite fibers using metal salt anions and their enhanced performance for dye removal

Mei

et al. 2017

RSC Adv.

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A facile TiO2/PVDF composite membrane synthesis and their application in water purification

Cited by 22 publications

References 37 publications

Fabrication of innovative forward osmosis membranes via multilayered interfacial polymerization on electrospun nanofibers

Fabrication of innovative forward osmosis membranes via multilayered interfacial polymerization on electrospun nanofibers

Progress of Nanocomposite Membranes for Water Treatment

Morphological control of poly(vinylidene fluoride)@layered double hydroxide composite fibers using metal salt anions and their enhanced performance for dye removal

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