High flux thin-film nanocomposites with embedded boron nitride nanotubes for nanofiltration

Casanova, Serena; Liu, Tian-Yin; Chew, Y.M. John; Livingston, Andrew G.; Mattia, Davide

doi:10.1016/j.memsci.2019.117749

Cited by 43 publications

(21 citation statements)

References 65 publications

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“…16,17 However, this superior performance was not observed in experiments through an individual tube, which reported significantly slower water flow in larger BNNTs (diameters ranging from 14 to 46 nm), compared to CNTs, 18 and in mixed matrix membranes containing randomly aligned BNNTs. 19 as well in MD simulations of nanotube with diameters >1 nm. 20 A potential explanation for this discrepancy is that in subnanometre tubes alone, the energy barriers for water transport at the entrance of and through the tubes are lower for BNNTs than CNTs, 16 hence, the overall transport of water through the BN tubes is faster than CNTs, as a result of different waternanotube wall interactions.…”

Section: Introductionmentioning

confidence: 81%

Enhanced nanoparticle rejection in aligned boron nitride nanotube membranes

et al. 2020

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Section: Introductionmentioning

confidence: 81%

Enhanced nanoparticle rejection in aligned boron nitride nanotube membranes

et al. 2020

Self Cite

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“…Not only did the embedded 2D FBNS enhance their structural/mechanical properties but also improve their chlorine and fouling resistance with excellent performance stability . Later some more 2D-BN based TFCs got popular in the nanofiltration applications, improving the total fouling resistance of the conventional membranes. − In another study based on polymeric TFCs, embedding of 2D BN based materials on the surface of the membranes are produced in the operation of nanofiltration. Functionalized amine moieties with BNNSs enhance the hydrophilicity of the membranes and allow high water absorption via hydrogen bonding.…”

Section: Class 2 Porous Membranesmentioning

confidence: 99%

Structure Dependent Water Transport in Membranes Based on Two-Dimensional Materials

Bakshi

Bustamante

Sui

et al. 2021

Ind. Eng. Chem. Res.

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The upsurge in population and industrialization has instigated the demand in improvement in the existing water purification systems. Numerous organic, and later inorganic materials, have showcased huge potential in different membrane separation processes. Recently, a novel range of two-dimensional (2D) materials possessing atomic thickness, high robustness, excellent mechanical stability, and even great fouling resistance have shown their appealing potential as membrane materials in this respect. The high aspect ratios of 2D materials enable the feasible control of membrane assembled structures. The membrane structure of 2D materials plays a crucial role in separation performance. Regarding the molecular transport pathway, the assembled structure is categorized into laminates and in-plane pores here. From this aspect, this review discusses the most recently progress of 2D materials membranes, including graphene-based materials, MXenes, transition metal dichalcogenides, metal organic frameworks, covalent organic frameworks, and boron nitride, in the field of water purification. According to their membrane assembled structures, the design strategies with separation mechanism and separation performance have been reviewed. Lastly, challenges and futuristic upgrades to enhance their membrane operation are discussed accordingly. This review provides a new perspective of 2D material assemblies on membrane design for advancing separation performance in water purification.

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“…Furthermore, humic acid fouling tests of BNNT membranes revealed a 95% flux recovery ratio and a ~50% lower flux loss than those for membranes without BNNTs. However, membranes with a BNNT loading of greater than 0.02 wt% exhibited performance loss due to nanotube agglomeration [ 108 ]. This research is crucial to understand the importance of BNNT dispersion.…”

Section: Perspectives On Key Membrane Studiesmentioning

confidence: 99%

“… Polymer composite applications of well-dispersed BNNTs: ( a ) fabrication of flame-resistive BNNT ultrafiltration membranes by using a polymeric dispersing agent (P4VP) (Reproduced from a previous study [ 107 ] with the permission of Elsevier); ( b ) Thin-film nanocomposite nanofiltration membranes with a BNNT-dispersed polyamide active layer (Reproduced from a previous study [ 108 ] with the permission of Elsevier). …”

Section: Figurementioning

confidence: 99%

Boron Nitride Nanotube (BNNT) Membranes for Energy and Environmental Applications

et al. 2020

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Owing to their extraordinary thermal, mechanical, optical, and electrical properties, boron nitride nanotubes (BNNTs) have been attracting considerable attention in various scientific fields, making it more promising as a nanomaterial compared to other nanotubes. Recent studies reported that BNNTs exhibit better properties than carbon nanotubes, which have been extensively investigated for most environment-energy applications. Irrespective of its chirality, BNNT is a constant wide-bandgap insulator, exhibiting thermal oxidation resistance, piezoelectric properties, high hydrogen adsorption, ultraviolet luminescence, cytocompatibility, and stability. These unique properties of BNNT render it an exceptional material for separation applications, e.g., membranes. Recent studies reported that water filtration, gas separation, sensing, and battery separator membranes can considerably benefit from these properties. That is, flux, rejection, anti-fouling, sensing, structural, thermal, electrical, and optical properties of membranes can be enhanced by the contribution of BNNTs. Thus far, a majority of studies have focused on molecular simulation. Hence, the requirement of an extensive review has emerged. In this perspective article, advanced properties of BNNTs are analyzed, followed by a discussion on the advantages of these properties for membrane science with an overview of the current literature. We hope to provide insights into BNNT materials and accelerate research for environment-energy applications.

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High flux thin-film nanocomposites with embedded boron nitride nanotubes for nanofiltration

Cited by 43 publications

References 65 publications

Enhanced nanoparticle rejection in aligned boron nitride nanotube membranes

Enhanced nanoparticle rejection in aligned boron nitride nanotube membranes

Structure Dependent Water Transport in Membranes Based on Two-Dimensional Materials

Boron Nitride Nanotube (BNNT) Membranes for Energy and Environmental Applications

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