Role of Nanomaterials in the Treatment of Wastewater: A Review

Water, Journal Year: 2020, Volume and Issue: 12(2), P. 495 - 495

Published: Feb. 12, 2020

Water is an essential part of life and its availability important for all living creatures. On the other side, world suffering from a major problem drinking water. There are several gases, microorganisms toxins (chemicals heavy metals) added into water during rain, flowing water, etc. which responsible pollution. This review article describes various applications nanomaterial in removing different types impurities polluted kinds nanomaterials, carried huge potential to treat (containing metal toxin substance, organic inorganic impurities) very effectively due their unique properties like greater surface area, able work at low concentration, The nanostructured catalytic membranes, nanosorbents nanophotocatalyst based approaches remove pollutants wastewater eco-friendly efficient, but they require more energy, investment order purify wastewater. many challenges issues treatment. Some precautions also required keep away ecological health issues. New modern equipment treatment should be flexible, cost efficient commercialization purpose.

Language: Английский

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A Review on Reverse Osmosis and Nanofiltration Membranes for Water Purification

Polymers, Journal Year: 2019, Volume and Issue: 11(8), P. 1252 - 1252

Published: July 29, 2019

Sustainable and affordable supply of clean, safe, adequate water is one the most challenging issues facing world. Membrane separation technology cost-effective widely applied technologies for purification. Polymeric membranes such as cellulose-based (CA) thin-film composite (TFC) have dominated industry since 1980. Although further development polymeric better performance laborious, research findings sustained progress in inorganic membrane grown fast solve some remaining problems. In addition to conventional ceramic metal oxide membranes, prepared by graphene (GO), carbon nanotubes (CNTs), mixed matrix materials (MMMs) attracted enormous attention due their desirable properties tunable pore structure, excellent chemical, mechanical, thermal tolerance, good salt rejection and/or high permeability. This review provides insight into synthesis approaches structural recent reverse osmosis (RO) nanofiltration (NF) which are used retain dissolved species heavy metals, electrolytes, salts various aqueous solutions. A specific focus has been placed on introducing comparing purification different classes related treatment industries. Furthermore, challenges opportunities organic discussed perspectives analyzed.

Language: Английский

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A Review on Porous Polymeric Membrane Preparation. Part I: Production Techniques with Polysulfone and Poly (Vinylidene Fluoride)

Polymers, Journal Year: 2019, Volume and Issue: 11(7), P. 1160 - 1160

Published: July 8, 2019

Porous polymeric membranes have emerged as the core technology in field of separation. But some challenges remain for several methods used membrane fabrication, suggesting need a critical review literature. We present here an overview on porous preparation and characterization two commonly polymers: polysulfone poly (vinylidene fluoride). Five different fabrication are introduced: non-solvent induced phase separation, vapor-induced electrospinning, track etching sintering. The key factors each method discussed, including solvent system type composition, polymer solution composition concentration, processing parameters, ambient conditions. To evaluate these methods, brief description is given related to morphology performance. One objective this basics selecting appropriate systems with conditions produce desired morphology, performance stability, well select best determine properties.

Language: Английский

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Progress in biomimetic leverages for marine antifouling using nanocomposite coatings

Journal of Materials Chemistry B, Journal Year: 2020, Volume and Issue: 8(17), P. 3701 - 3732

Published: Jan. 1, 2020

Because of the environmental and economic casualties biofouling on maritime navigation, modern studies have been devoted toward formulating advanced nanoscale composites in controlled development effective marine antifouling self-cleaning surfaces.

Language: Английский

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Immobilization techniques of a photocatalyst into and onto a polymer membrane for photocatalytic activity

RSC Advances, Journal Year: 2021, Volume and Issue: 11(12), P. 6985 - 7014

Published: Jan. 1, 2021

This article reviews the various techniques of immobilizing a photocatalyst into and onto polymer membrane for pollutant removal as problem solver in handling suspended issues from previous literature. A particular focus is given to preparation mixed matrix membranes deposition photocatalytic degradation applications wastewater treatment. Advantages disadvantages this application are evaluated. Various operating conditions during process presented. About 90 recently published studies (2008-2020) reviewed. From literature, it was found that TiO2 most favoured frequently used water Dry-wet co-spinning sputtering emerged promising technique uniformly distributed within polymeric membrane, exhibited excellence removal. In general, technical applicability key factor selecting best Finally, scope have been reviewed may provide potential future study.

Language: Английский

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A comprehensive review on preparation, functionalization and recent applications of nanofiber membranes in wastewater treatment

Journal of Environmental Management, Journal Year: 2021, Volume and Issue: 301, P. 113908 - 113908

Published: Oct. 7, 2021

Language: Английский

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Strongly co-ordinated MOF-PSF matrix for selective adsorption, separation and photodegradation of dyes

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 428, P. 132561 - 132561

Published: Sept. 21, 2021

Language: Английский

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A comprehensive review of recent advances in nanofiltration membranes for heavy metal removal from wastewater

Process Safety and Environmental Protection, Journal Year: 2022, Volume and Issue: 189, P. 530 - 571

Published: Dec. 1, 2022

Language: Английский

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Smart and innovative nanotechnology applications for water purification

Hybrid Advances, Journal Year: 2023, Volume and Issue: 3, P. 100044 - 100044

Published: May 6, 2023

The most critical challenge of the twenty-first century is to provide sufficient clean, cheap water for all. This made worse by population increase, climate change, and declining quality. Technology innovation, such as nanotechnology, essential enabling integrated management increase treatment effectiveness expand supplies using unconventional sources. Nanotechnology can improve access safe drinking providing innovative nanomaterials treating surface water, groundwater, wastewater contaminated hazardous metal ions, inorganic organic solutes, microorganisms. As a result, development nanotechnology provided ground-breaking solutions issues in engineering, physics, chemistry, others. products processes developed because advancements currently employed include nanoadsorbents, nano zero valent iron, nanobiocides, nanofiltration, magnetic nanoparticles, hybrid technology provides catalytic wet air oxidation addition nanoparticles. Considering need examine handle developing wastes with lower costs, less energy, more efficiency, this review shines light on current nanotechnology. Numerous industries, scientific research, medical field, food industry, have paid close attention expanding significance unique qualities nanobubbles.

Language: Английский

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Advanced Polymeric Nanocomposite Membranes for Water and Wastewater Treatment: A Comprehensive Review

Polymers, Journal Year: 2023, Volume and Issue: 15(3), P. 540 - 540

Published: Jan. 20, 2023

Nanomaterials have been extensively used in polymer nanocomposite membranes due to the inclusion of unique features that enhance water and wastewater treatment performance. Compared pristine membranes, incorporation nanomodifiers not only improves membrane performance (water permeability, salt rejection, contaminant removal, selectivity), but also intrinsic properties (hydrophilicity, porosity, antifouling properties, antimicrobial mechanical, thermal, chemical stability) these membranes. This review focuses on applications different types nanomaterials: zero-dimensional (metal/metal oxide nanoparticles), one-dimensional (carbon nanotubes), two-dimensional (graphene associated structures), three-dimensional (zeolites frameworks) nanomaterials combined with polymers towards novel polymeric nanocomposites for applications. will show combinations impart enhanced into membrane; however, underlying issues modification processes environmental impact are less obvious. highlights utility computational methods toward understanding structural functional Here, we highlight fabrication methods, advantages, challenges, impact, future scope advanced based systems

Language: Английский

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