Functionalized boron nitride composite ultrafiltration membrane for dye removal from aqueous solution

Hafeez, Asif; Karim, Zulhairun Abdul; Ismail, Ahmad Fauzi; Samavati, Alireza; Said, Khairul Anwar Mohammad; Selambakkannu, Sarala

doi:10.1016/j.memsci.2020.118473

Cited by 44 publications

(12 citation statements)

References 44 publications

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“…Images of BN membranes after filtrating Methyl Orange and Methylene Blue are shown in Figure S18. The results obtained for methylene blue are higher or similar but over a longer period of time [48] than reported values in the literature for BN (95% retention), as well as functionalised BN (98% retention) [79]. Methyl orange is more often tested with other compounds [80,81], but it has been tested using functionalised BN with a negative charge, producing lower retention than the values reported here [39].…”

Section: Bn Membrane Testingsupporting

confidence: 60%

“…The retention and sorption mechanisms in BN structures are normally associated with π-π stacking interactions between the BN sheets and aromatic dye molecules, electrostatic interactions between the polar B-N bond and the charged and polar dyes, physisorption in the micropores and hydrophobic interactions. Here, we propose that BN retains the dyes via physisorption, and π-π stacking interactions take place between the BN rings and the aromatic rings present in the dye structures [44,79]. This is supported by the results indicating that all three dyes show strong separation by the membranes regardless of the charge of the dye molecules.…”

Section: Bn Membrane Testingmentioning

confidence: 51%

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High-Performance Boron Nitride-Based Membranes for Water Purification

et al. 2022

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In recent years, nanotechnology-based approaches have resulted in the development of new alternative sustainable technologies for water purification. Two-dimensional (2D) nanomaterials are an emerging class of materials for nanofiltration membranes. In this work, we report the production, characterisation and testing of a promising nanofiltration membrane made from water-exfoliated boron nitride (BN) 2D nanosheets. The membranes have been tested for water purification and removal of typical water-soluble dyes such as methyl orange, methylene blue and Evans blue, with the water-exfoliated BN membranes achieving retention values close to 100%. In addition, we compared the performance of membranes made from water-exfoliated BN with those produced from BN using sonication-assisted liquid exfoliation in selected organic solvents such as 2-propanol and N-methyl-2-pyrrolidone. It was found that membranes from the water-exfoliated BN showed superior performance. We believe this research opens up a unique opportunity for the development of new high-performance environmentally friendly membranes for nanofiltration and new sustainable separation technologies.

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Section: Bn Membrane Testingsupporting

confidence: 60%

Section: Bn Membrane Testingmentioning

confidence: 51%

High-Performance Boron Nitride-Based Membranes for Water Purification

et al. 2022

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“…Since various fabrics/porous filters/membranes can be utilized as a support membrane as well as different configurations and functionalization of BNs, there are several investigations on BN-based fabrication by filtration-assisted methods for different membrane processes or applications such as dye removal investigation of PEG grafted BN on PVDF support membranes, some of which are listed in Table . These membranes have high flux; however, critical disadvantages of the filtration-assisted technique fabricated membranes are the weak stability of the BN layer on the support surface and defect-free coating layer, which limit the wide use of this technique as a membrane fabrication method.…”

Section: Fabrication Techniques Of Bn-based Membranesmentioning

confidence: 99%

“…However, their lower dispersibility in polar solvents limits their usability in membrane applications. In the study of Hafeez et al 140 a thickness adjustable PEG-g-(NH 2 )BN working membrane was produced using sonication combined with vacuum filtration and centrifugation. As a result of the production of the membrane with stable and interconnected pores, 1253 L/m 2 •h•bar showed a superhydrophilic property with high permeability and 98% high exclusion for methylene blue dye from an aqueous solution.…”

Section: 3mentioning

confidence: 99%

A Comprehensive Review on the Applications of Boron Nitride Nanomaterials in Membrane Fabrication and Modification

Vatanpour

Mehrabani

Keskin

et al. 2021

Ind. Eng. Chem. Res.

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Boron nitride (BN) presented enormous potential in the fabrication of novel membranes with superior separation efficiency. Researchers try to produce membranes with high solvent permeability and good rejection performance in industrial applications. In this review, the recent progress in the fabrication of BN-based membranes with different fabrication techniques and various applications is reviewed. Representative studies on applying BN-based membranes in gas separation, proton exchange, electrodialysis, and water filtration membranes to develop their performance and stability, induce antifouling characteristics, and decline the trade-off between selectivity and permeability, together with the explanation of their mechanisms, are discussed. Moreover, various methods of synthesis of BN allotropes are introduced. In addition, a brief review of simulation studies (molecular dynamic and density function theory) on theoretical studies of BN nanosheet membranes was performed. The authors hope that this review will arouse the active interest of many researchers in the further development of the BNs application in membrane science and technology.

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“…In particular, different types of nanomaterials have been investigated for a wide range of potential applications [ 1 , 2 , 3 , 4 ]. Amongst them, low dimensional boron nitride (BN) materials, have attracted the attention of the scientific community due to their promising properties, such as high thermal conductivity, wide optical bandgap, strong ultraviolet emission, great mechanical stiffness, thermal stability, and chemical inertness [ 5 , 6 , 7 ]. BN consists of an equal number of boron and nitrogen atoms, which are arranged differently depending on pressure and temperature conditions, giving rise to distinct crystalline forms (hexagonal, rhombohedral, diamond-like cubic, and wurtzite).…”

Section: Introductionmentioning

confidence: 99%

Assessment of Physico-Chemical and Toxicological Properties of Commercial 2D Boron Nitride Nanopowder and Nanoplatelets

Domi

Bhorkar

Rumbo

et al. 2021

IJMS

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Boron nitride (BN) nanomaterials have been increasingly explored for potential applications in chemistry and biology fields (e.g., biomedical, pharmaceutical, and energy industries) due to their unique physico-chemical properties. However, their safe utilization requires a profound knowledge on their potential toxicological and environmental impact. To date, BN nanoparticles have been considered to have a high biocompatibility degree, but in some cases, contradictory results on their potential toxicity have been reported. Therefore, in the present study, we assessed two commercial 2D BN samples, namely BN-nanopowder (BN-PW) and BN-nanoplatelet (BN-PL), with the objective to identify whether distinct physico-chemical features may have an influence on the biological responses of exposed cellular models. Morphological, structural, and composition analyses showed that the most remarkable difference between both commercial samples was the diameter of their disk-like shape, which was of 200–300 nm for BN-PL and 100–150 nm for BN-PW. Their potential toxicity was investigated using adenocarcinomic human alveolar basal epithelial cells (A549 cells) and the unicellular fungus Saccharomycescerevisiae, as human and environmental eukaryotic models respectively, employing in vitro assays. In both cases, cellular viability assays and reactive oxygen species (ROS) determinations where performed. The impact of the selected nanomaterials in the viability of both unicellular models was very low, with only a slight reduction of S. cerevisiae colony forming units being observed after a long exposure period (24 h) to high concentrations (800 mg/L) of both nanomaterials. Similarly, BN-PW and BN-PL showed a low capacity to induce the formation of reactive oxygen species in the studied conditions. Even at the highest concentration and exposure times, no major cytotoxicity indicators were observed in human cells and yeast. The results obtained in the present study provide novel insights into the safety of 2D BN nanomaterials, indicating no significant differences in the toxicological potential of similar commercial products with a distinct lateral size, which showed to be safe products in the concentrations and exposure conditions tested.

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Functionalized boron nitride composite ultrafiltration membrane for dye removal from aqueous solution

Cited by 44 publications

References 44 publications

High-Performance Boron Nitride-Based Membranes for Water Purification

High-Performance Boron Nitride-Based Membranes for Water Purification

A Comprehensive Review on the Applications of Boron Nitride Nanomaterials in Membrane Fabrication and Modification

Assessment of Physico-Chemical and Toxicological Properties of Commercial 2D Boron Nitride Nanopowder and Nanoplatelets

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