Fabrication of graphene-oxide and zeolite loaded polyvinylidene fluoride reverse osmosis membrane for saltwater remediation

Mushtaq, Rabia; Saghar, Sadia; Younas, Umer; Pervaiz, Muhammad; Aljuwayid, Ahmed Muteb; Habila, Mohamed A.

doi:10.1016/j.chemosphere.2022.136012

Cited by 21 publications

(7 citation statements)

References 54 publications

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“…To improve the reusage of the composites, magnetic separation technology has recently been employed for solid and reaction mediums. For instance, MnFe 2 O 4 was successfully synthesized with Cu-zeolite/GO composites for exploration of its potential application. − In addition to the above structural features, its electron transfer ability and biocompatibility extend its application in the development of enzyme-based catalysts. The electron exchange among the support and enzyme can be improved by graphene oxide (GO) based materials. , They can achieve effective biocompatibility, the optimal capability to functionalize the resulting composite material, and better water dispensability as a result of having an oxygen functional group .…”

Section: Challenges and Perspectivesmentioning

confidence: 99%

Future Perspectives on Zeolite/Graphene Oxide Composite Synthesis and Applications

Subramanian,

Perumal,

Mangesh

et al. 2023

Energy Fuels

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Graphene research continues to advance into many territories, and in this study, an exhaustive analysis of the fabrication and performance of zeolite/graphene composites is attempted for the first time. Apart from zeolite/graphene applications, the potential of graphene composites with other materials has been presented. Future perspectives and challenges have been presented extensively to enable researchers to explore the synergy of graphene composites for various unexplored applications. Carbon atoms are arranged in a two-dimensional plate-like pattern to produce the hexagonal network-shaped material known as graphene, which has a material thickness of one atom. Zeolites are frequently employed widely as heterogeneous catalysts in a variety of chemical industries due to their enormous surface area and constant pore size. Recently, scientists have worked to better understand how graphene and zeolite work together as a composite catalyst. The removal of dyes, the adsorption of heavy metal ions, electrochemical capacitors and sensors, oil purification, microbial fuel cells, and reverse osmosis membranes were among the potential uses for zeolite/graphene oxide composites that were investigated in earlier studies. The aforementioned applications show how versatile zeolite/graphene oxide composites are. In addition to summarizing earlier studies on the techniques for synthesizing graphene with common zeolites, this study has also taken historical data to demonstrate improvements in the use of zeolite/graphene composites in diverse industrial applications. There is, nevertheless, a lot of potential for the study of zeolite/graphene composites because the bulk of applications use zeolites and graphene oxide as distinct components. Again, this study has explored the composite potential of graphene with other materials in energy storage, fuel cracking and adsorption applications. This study provides a comprehensive review of the synergistic benefits of graphene composites and its future opportunities and challenges.

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Section: Challenges and Perspectivesmentioning

confidence: 99%

Future Perspectives on Zeolite/Graphene Oxide Composite Synthesis and Applications

Subramanian,

Perumal,

Mangesh

et al. 2023

Energy Fuels

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“…The concept of water channels was successfully introduced into the designation of RO membranes through aquaporin proteins, , carbon nanotubes, liquid crystal phase, zeolites, graphene sheets, , and synthetic molecules, wherein water molecules pass through confined channels and other species such as sodium ions are excluded. Single-walled carbon nanotubes with carboxylated ends were partially aligned and served as artificial water channels to be incorporated into the polyamide barrier layer to enhance the desalination efficiency of RO membranes .…”

Section: Introductionmentioning

confidence: 99%

“…8 Attempts were made by (1) organic phase; 9 (2) improving the hydrophilicity of the barrier layer by the introduction of functional groups; 10 (3) increasing the permeability of the barrier layer by nanomaterials; 11 and (4) decreasing the degree of cross-linking of the barrier layer by post-treatments to improve the permeation flux of the RO membrane to a certain extent by changing the structure of the polyamide barrier layer. 12 The concept of water channels was successfully introduced into the designation of RO membranes through aquaporin proteins, 13,14 carbon nanotubes, 15 liquid crystal phase, 16 zeolites, 17 graphene sheets, 18,19 and synthetic molecules, 20 wherein water molecules pass through confined channels and other species such as sodium ions are excluded. Single-walled carbon nanotubes with carboxylated ends were partially aligned and served as artificial water channels to be incorporated into the polyamide barrier layer to enhance the desalination efficiency of RO membranes.…”

Section: Introductionmentioning

confidence: 99%

High-Flux Nanofibrous Composite Reverse Osmosis Membrane Containing Interfacial Water Channels for Desalination

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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A nanofibrous composite reverse osmosis (RO) membrane with a polyamide barrier layer containing interfacial water channels was fabricated on an electrospun nanofibrous substrate via an interfacial polymerization process. The RO membrane was employed for desalination of brackish water and exhibited enhanced permeation flux as well as rejection ratio. Nanocellulose was prepared by sequential oxidations of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) and sodium periodate systems and surface grafting with different alkyl groups including octyl, decanyl, dodecanyl, tetradecanyl, cetyl, and octadecanyl groups. The chemical structure of the modified nanocellulose was verified subsequently by Fourier transform infrared (FTIR), thermal gravimetric analysis (TGA), and solid NMR measurements. Two monomers, trimesoyl chloride (TMC) and m-phenylenediamine (MPD), were employed to prepare a cross-linked polyamide matrix, i.e., the barrier layer of the RO membrane, which integrated with the alkyl groups-grafted nanocellulose to build up interfacial water channels via interfacial polymerization. The top and cross-sectional morphologies of the composite barrier layer were observed by means of scanning electron microscopy (SEM), atomic force microscopy (AFM), and transmission electron microscopy (TEM) to verify the integration structure of the nanofibrous composite containing water channels. The aggregation and distribution of water molecules in the nanofibrous composite RO membrane verified the existence of water channels, demonstrated by molecular dynamics (MD) simulations. The desalination performance of the nanofibrous composite RO membrane was conducted and compared with that of commercially available RO membranes in the processing of brackish water, where 3 times higher permeation flux and 99.1% rejection ratio against NaCl were accomplished. This indicated that the engineering of interfacial water channels in the barrier layer could substantially increase the permeation flux of the nanofibrous composite membrane while retaining the high rejection ratio as well, i.e., to break through the trade-off between permeation flux and rejection ratio. Antifouling properties, chlorine resistance, and long-term desalination performance were also demonstrated to evaluate the potential applications of the nanofibrous composite RO membrane; remarkable durability and robustness were achieved in addition to 3 times higher permeation flux and a higher rejection ratio against commercial RO membranes in brackish water desalination.

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“…Spinel nanoferrites have a ceramic material structure consisting of iron oxide and other metallic elements [2]. Spinel nanoferrites have a significant variety of usages, including switching and high-frequency devices [11], removal of organic industrial contaminants [16], hyperthermia treatments [17], high-performance energystorage equipment [10], drug delivery for cancer treatment [18], and waste-water management [19]. The spinel structure ferrites also have been used in lithium-ion batteries [20] in antimicrobial [21,22], and microwave applications [23,24].…”

Section: Introductionmentioning

confidence: 99%

Structural, dielectric, and thermal properties of Zn and Cr doped Mg- Co spinel nanoferrites

Hasanain

2023

Mater. Res. Express

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Nanoferrites play a pivotal role to resolve worldwide usage of electronic and microwave devices. Spinel ferrites have exceptional structural, morphological, and dielectric properties. The composition Zn0.5–xMg0.25+xCo0.25Cr1–xFe1+xO4 (ZMCCF) where x varies from 0-0.5 with the difference of 0.25 was synthesized via auto combustion (sol-gel) route. The structural, thermal, and dielectric characterizations were done to observe the responses of variation of x in designed nanoferrites. The designed nanoferrites with a variation of x experienced promising changes in structural, thermal, and dielectric responses. With the increase in frequency, the dielectric constant decrease which is the favorable trend of spinel ferrites based on Koop’s theory. This behavior is endorsed by the different cationic distributions in the spinel structure. The maximum value of the tangent loss at low frequencies reflects the application of these materials in medium frequency devices. Therefore planned spinel nanoferrites may beneficial for advanced electronics and microwave devices.

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Fabrication of graphene-oxide and zeolite loaded polyvinylidene fluoride reverse osmosis membrane for saltwater remediation

Cited by 21 publications

References 54 publications

Future Perspectives on Zeolite/Graphene Oxide Composite Synthesis and Applications

Future Perspectives on Zeolite/Graphene Oxide Composite Synthesis and Applications

High-Flux Nanofibrous Composite Reverse Osmosis Membrane Containing Interfacial Water Channels for Desalination

Structural, dielectric, and thermal properties of Zn and Cr doped Mg- Co spinel nanoferrites

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