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Nanotechnological Developments in Nanofiber-Based Membranes Used for Water Treatment Applications

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Environmental Nanotechnology Volume 5

Part of the book series: Environmental Chemistry for a Sustainable World ((ECSW,volume 37))

Abstract

With the constant acceleration of global industrialization and urbanization, the increase of urban economic level, the ever-increasing problem of water pollution is becoming more and more serious and causes a major threat to people’s production, life and physical and mental well-being. Commonly used water treatment methods include membrane filtration, catalytic decomposition, adsorption and organic/inorganic chemistry. When compared with the other methods, the membrane filtration method has gained great market prospect because of its unique use advantages such as low operation cost and energy consumption, simple and quick operation, high purification efficiency, cleanness and environmental protection. The used commercially available filtration membranes are generally composed of polymer structure such as polyvinylidene fluoride, mixed cellulose esters, polyether sulfone and so on. However, the use of such conventional filtration membranes cause important problems of low mechanical, thermal stability, low porosity, quick fouling and poor pore connectivity, which can lead to limited filtration efficiency and high operation cost.

Nanotechnology and nanomaterials are used in the best possible applications to develop new membranes have high performance for water treatment process lead to the solution of the global water crisis. Nano-scale materials can be designed to display novel and importantly enhanced physical and chemical features. Nanofibers are an excellent member of the nanomaterials that offers unique properties to users depending on nanoscale diameters and wide aspect ratios. The advancement of nanofiber technology provides suitable tools for producing nanofiber-based membranes have excellent chemical, physical and mechanical behavior, large surface area to volume ratio and they have special characteristics attractive for advanced water treatment applications. When the literature studies on water treatment are examined, it is seen that there are approximately 1300 articles, 170 patent and over one hundred commercial membranes products in which the nanofibers are used for the water treatment methods. While there was no any study in the literature on the use of nanofibres for water treatment methods in 2000, the number of the published reports increased to about ~20 in 2007 and increased to about ~174 in 2017. With the rapid increase in the interest that exists about the nanofiber-based membranes, here we provide an overview of problems in nanofiber membranes, nanotechnological solutions and innovations in nanofiber membranes used in membrane process for water and waste water treatment.

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Abbreviations

NM:

Nanomaterial

NPs:

Nanoparticles

NFMs:

Nanofiber membranes

MF:

Microfiltration

UF:

Ultrafiltration

NF:

Nanofiltration

MD:

Membrane distillation

AGMD:

Air gap membrane distillation

EO:

Engineered osmosis

RO:

Reverse osmosis

FO:

Forward osmosis

PRO:

Pressure-retarded osmosis

HFMs:

Hollow fiber membranes

MMMs:

Mixed matrix membranes

TOC:

Total organic carbon

CP:

Concentration polarisation

ICP:

Internal concentration polarization

2D:

Two-dimensional

3D:

Three-dimensional

ENMs:

Electrospun nanofiber membranes

CNT:

Carbon nanotube

MWCNT:

Multiwalled carbon nanotube

GO:

Graphene oxide

PAN:

Polyacrylontrile

PEO:

Poly(ethylene oxide)

PET:

Poly(ethylene terephthalate)

PES:

Polyethersulfone

PS:

Polystyrene

PVC:

Poly(vinyl chloride)

PVA:

Poly(vinyl alcohol)

PCL:

Poly(e-caprolactone)

PPTA:

Poly(p-phenylene terephthalamide)

PVDF:

Poly(vinylidine fluoride)

PBI:

Polybenzimidazole

PUS:

Polyurethanes

PVP:

Poly(vinyl phenol)

PVAc:

Polyvinyl acetate

PSF:

Polysulfone

PANCMI:

Poly acrylonitrile-co-maleimide

PAA:

Poly(acrylic acid)

PIA:

Poly(itaconic acid)

ANF:

Aramid nanofiber

PI:

Polyimide

PEI:

Polyetherimide

PA:

Polyamide

APTES:

3-aminopropyltriethoxysilane

TFNC:

Thin film nanocomposite

LEP:

Liquid entry pressure

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Correspondence to Mustafa Soylak .

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Yilmaz, E., Soylak, M. (2021). Nanotechnological Developments in Nanofiber-Based Membranes Used for Water Treatment Applications. In: Dasgupta, N., Ranjan, S., Lichtfouse, E., Mishra, B.N. (eds) Environmental Nanotechnology Volume 5. Environmental Chemistry for a Sustainable World, vol 37. Springer, Cham. https://doi.org/10.1007/978-3-030-73010-9_6

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