Nanocomposite membranes for water separation and purification: Fabrication, modification, and applications

Esfahani, Milad Rabbani; Aktij, Sadegh Aghapour; Dabaghian, Zoheir; Firouzjaei, Mostafa Dadashi; Rahimpour, Ahmad; Eke, Joyner; Escobar, Isabel C.; Abolhassani, Mojtaba; Greenlee, Lauren F.; Esfahani, Amirsalar R.; Sadmani, A.H.M. Anwar; Koutahzadeh, Negin

doi:10.1016/j.seppur.2018.12.050

Cited by 363 publications

(146 citation statements)

References 423 publications

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“…Despite the promising performances rendered by membrane technologies, most polymer membranes experience fouling problems when micro-organism and organic substances such as protein and water source polysaccharides are deposited on a membrane surface or inside a membrane pore because of their hydrophobicity [65]. It impedes water permeation, decreases the flux, increases the complexity of operation and reduces membrane lifespan, resulting in higher costs [5,66,67]. Membranes are affected by four main types of foulants, namely: (a) inorganic/crystalline, (b) organic, colloidal, (c) microbiological or biofouling and (d) particulate [68][69][70].…”

Section: Membrane and Membrane Processesmentioning

confidence: 99%

“…Worsening the issue, only 2.5% of the water on Earth is safe for consumption and most of this freshwater is locked in the form of glaciers, icecaps and underground water [4]. Based on the current circumstances, it is predicted about 3.9 billion people will live in regions under conditions of severe water scarcity by 2030 [5]. To tackle the problems associated with water shortages and water stress in many regions, research has been focused on suitable alternative ways to acquire freshwater significant element, whereby long-term testing of the stability of the nanocomposite membrane are crucial in order to control nanomaterials leaching, particularly for surface-modified nanocomposite membranes [41,42].…”

Section: Introductionmentioning

confidence: 99%

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The Recent Progress in Modification of Polymeric Membranes Using Organic Macromolecules for Water Treatment

et al. 2020

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For decades, the water deficit has been a severe global issue. A reliable supply of water is needed to ensure sustainable economic development in population growth, industrialization and urbanization. To solve this major challenge, membrane-based water treatment technology has attracted a great deal of attention to produce clean drinking water from groundwater, seawater and brackish water. The emergence of nanotechnology in membrane science has opened new frontiers in the development of advanced polymeric membranes to enhance filtration performance. Nevertheless, some obstacles such as fouling and trade-off of membrane selectivity and permeability of water have hindered the development of traditional polymeric membranes for real applications. To overcome these issues, the modification of membranes has been pursued. The use of macromolecules for membrane modification has attracted wide interests in recent years owing to their interesting chemical and structural properties. Membranes modified with macromolecules have exhibited improved anti-fouling properties due to the alteration of their physiochemical properties in terms of the membrane morphology, porosity, surface charge, wettability, and durability. This review provides a comprehensive review of the progress made in the development of macromolecule modified polymeric membranes. The role of macromolecules in polymeric membranes and the advancement of these membrane materials for water solution are presented. The challenges and future directions for this subject are highlighted.

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Section: Membrane and Membrane Processesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Recent Progress in Modification of Polymeric Membranes Using Organic Macromolecules for Water Treatment

et al. 2020

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“…Attention should be paid to the rapid development of superoleophobic/superoleophilic, superhydrophilic/superhydrophobic surfaces [19][20][21][22][23] and membranes [24][25][26][27] as well as energy-efficient modular separation devices, which are used for separation of oil-water emulsions and gas-liquid mixtures. Additionally, the appliance of inertial gas-dynamic separation of gas-dispersion flows in the curvilinear convergent-divergent channels [28] to improve the reliability of compressor equipment is presented in [29].…”

Section: Literature Reviewmentioning

confidence: 99%

Identification of the Interfacial Surface in Separation of Two-Phase Multicomponent Systems

et al. 2020

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The area of the contact surface of phases is one of the main hydrodynamic indicators determining the separation and heat and mass transfer equipment calculations. Methods of evaluating this indicator in the separation of multicomponent two-phase systems were considered. It was established that the existing methods for determining the interfacial surface are empirical ones, therefore limited in their applications. Consequently, the use of the corresponding approaches is appropriate for certain technological equipment only. Due to the abovementioned reasons, the universal analytical formula for determining the interfacial surface was developed. The approach is based on both the deterministic and probabilistic mathematical models. The methodology was approved on the example of separation of two-phase systems considering the different fractional distribution of dispersed particles. It was proved that the area of the contact surface with an accuracy to a dimensionless ratio depends on the volume concentration of the dispersed phase and the volume of flow. The separate cases of evaluating the contact area ratio were considered for different laws of the fractional distribution of dispersed particles. As a result, the dependence on the identification of the abovementioned dimensionless ratio was proposed, as well as its limiting values were determined. Finally, a need for the introduction of the correction factor was substantiated and practically proved on the example of mass-transfer equipment.

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“…The wide variety of intriguing nanomaterials with outstanding physical and chemical properties that can be produced by electrospinning (natural and synthetic polymers, ceramic oxides, carbon and composite carbon-based fibers, and fibrous flexible membranes with hierarchical porosity) find application in a plethora of both well-assessed and emerging applications, spanning from healthcare and biomedical engineering (e.g., wound dressing, biological sensing, drug and therapeutic agent delivery, tissue regeneration, and engineering) to environmental protection and remediation (e.g., chemical and gas sensing, photocatalytic abatement of pollutants, water treatment), from energy harvesting, generation, and storage (e.g., solar cells, hydrogen production and storage, supercapacitors, batteries, and fuel cells) to electronics (e.g., field-effect transistors, diodes, photodetectors, and electrochromic devices) [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Electrospun Nanomaterials for Energy Applications: Recent Advances

Santangelo

2019

Applied Sciences

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Electrospinning is a simple, versatile, cost-effective, and scalable technique for the growth of highly porous nanofibers. These nanostructures, featured by high aspect ratio, may exhibit a large variety of different sizes, morphologies, composition, and physicochemical properties. By proper post-spinning heat treatment(s), self-standing fibrous mats can also be produced. Large surface area and high porosity make electrospun nanomaterials (both fibers and three-dimensional fiber networks) particularly suitable to numerous energy-related applications. Relevant results and recent advances achieved by their use in rechargeable lithium- and sodium-ion batteries, redox flow batteries, metal-air batteries, supercapacitors, reactors for water desalination via capacitive deionization and for hydrogen production by water splitting, as well as nanogenerators for energy harvesting, and textiles for energy saving will be presented and the future prospects for the large-scale application of electrospun nanomaterials will be discussed.

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Nanocomposite membranes for water separation and purification: Fabrication, modification, and applications

Cited by 363 publications

References 423 publications

The Recent Progress in Modification of Polymeric Membranes Using Organic Macromolecules for Water Treatment

The Recent Progress in Modification of Polymeric Membranes Using Organic Macromolecules for Water Treatment

Identification of the Interfacial Surface in Separation of Two-Phase Multicomponent Systems

Electrospun Nanomaterials for Energy Applications: Recent Advances

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