Boron Nitride Nanotubes Versus Carbon Nanotubes: A Thermal Stability and Oxidation Behavior Study

Kostoglou, Nikolaos; Tampaxis, Christos; Charalambopoulou, Georgia; Constantinides, Georgios; Рыжков, В. А.; Doumanidis, Charalabos C.; Matović, Branko; Mitterer, Christian; Rebholz, Claus

doi:10.3390/nano10122435

Cited by 28 publications

(16 citation statements)

References 27 publications

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“…Non-carbon nanostructures, as well as BNNTs, have attracted a lot of attention due to their thermal and chemical stability, together with their mechanical properties [1]. Boron nitride nanotubes (BNNTs) were originally introduced in 1994 [2], and the arc discharge procedure was used to produce them a year later [3].…”

Section: Introductionmentioning

confidence: 99%

Boron Nitride Nanotubes for Curcumin Delivery as an Anticancer Drug: A DFT Investigation

et al. 2022

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The electrical properties and characteristics of the armchair boron nitride nanotube (BNNT) that interacts with the curcumin molecule as an anticancer drug were studied using ab initio calculations based on density functional theory (DFT). In this study, a (5,5) armchair BNNT was employed, and two different interactions were investigated, including the interaction of the curcumin molecule with the outer and inner surfaces of the BNNT. The adsorption of curcumin molecules on the investigated BNNT inside the surface is a more favorable process than adsorption on the outside surface, and the more persistent and stronger connection correlates with curcumin molecule adsorption in this case. Furthermore, analysis of the HOMO–LUMO gap after the adsorption process showed that the HOMO value increased marginally while the LUMO value decreased dramatically in the curcumin-BNNT complexes. As a result, the energy gaps between HOMO and LUMO (Eg) are narrowed, emphasizing the stronger intermolecular bonds. As a result, BNNTs can be employed as a drug carrier in biological systems to transport curcumin, an anticancer medication, and thereby improve its bioavailability.

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Section: Introductionmentioning

confidence: 99%

Boron Nitride Nanotubes for Curcumin Delivery as an Anticancer Drug: A DFT Investigation

et al. 2022

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“…When the heat preservation experiment was carried out for the initial 60 min, the BNNTs began to “melt”. This melting is because the BNNTs can only maintain their oxidation resistance up to 800–900 °C 29 , and they can be partly transformed to boron oxide at 1000 °C 30 . Based on these findings, the SiON ceramic coating is an effective and simple method to make BNNTs more desirable for numerous applications in harsh conditions.…”

Section: Resultsmentioning

confidence: 99%

Highly electromagnetic transparent ceramic composite made of boron nitride nanotubes and silicon oxynitride via perhydropolysilazane infiltration method

Yang

2022

Sci Rep

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With the rapid development of electromagnetic (EM) wave circuit devices, high-performance wave-transparent materials with various functions have attracted great attention. Ceramic material is a promising candidate to be applied in harsh environments because of its chemical and corrosion resistance. In this work, a polymer-derived route was adopted to synthesize ceramic composite at room temperature. The composite is made of perhydropolysilazane-derived SiON ceramic and reinforced with boron nitride nanotubes (BNNTs) sheets. With the addition of SiON ceramic materials, the resultant sample showed an excellent hydrophobicity with a contact angle of 135–146.9°. More importantly, superior thermal stability at 1600 °C in the oxygen-containing atmosphere was observed for the fabricated SiON/BNNTs sample, without any shape change. The electromagnetic transparency of the SiON/BNNTs was studied through the waveguide method. The prepared SiON/BNNTs sample has an average real permittivity between 1.52 and 1.55 and an average loss tangent value in the range of 0.0074–0.0266, at the frequency range of 26.5–40 GHz. The effect of thickness on the wave transparency of SiON/BNNTs samples is also discussed. To summarize the aforementioned superior characterization and measurement results, the presented SiON/BNNTs material system has a great potential to be used as EM transparent materials in harsh conditions.

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“…[11] Nanotubes have also been considered for capturing air pollutants due to the highly porous and hollow structures, [12,13] and a specific surface area of ≈200 m 2 g -1 . [14] Unlike the adsorbents introduced earlier, nanotube-based adsorbents have attracted much attention because of their structural stability, which is attributed to chemically inert surfaces with well-defined and uniform arrangements at the atomic scale. [15][16][17] Carbon nanotubes (CNTs) and boron nitride nanotubes (BN-NTs) are the most prominent species, with particularly low mass density.…”

Section: Introductionmentioning

confidence: 99%

Boron‐Rich Boron Nitride Nanotubes as Highly Selective Adsorbents for Selected Diatomic Air Pollutants: A DFT Study

Bae

Hussain

Choi

et al. 2022

Advcd Theory and Sims

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Boron‐rich boron nitride nanotubes (BN‐BNNTs), which have boron antisite defects (BN), adsorb gas molecules more favorably as compared to their pristine counterparts because of the localized states of antisites. Using computational chemistry methods, the structural, adsorptive, and electronic properties of selected diatomic air pollutants (CO, NO, and SO) on BN‐BNNT (8,0), with a particular focus on the antisites, are investigated. It is found that CO adsorbs on BN with 180° angle (∠BNCO) while NO and SO adsorb with 142° angle (∠BNNO) and 116° angle (∠BNSO), respectively. This difference is ascribed to the repulsive interaction originated from lone pair electrons on N and S. Adsorption energy of CO, NO, and SO molecules dominates over that of O2 and N2 and is independent of their radii of BN‐BNNTs. The practical capacity of these pollutant molecules is calculated to be ≈5 mmol g–1 (14 wt%) under ambient conditions. Therefore, our results show that BN‐BNNT can be used as a highly selective adsorbent for diatomic air pollutants. BN‐BNNT as sensing materials in terms of change in bandgap and work function through the adsorption is also discussed.

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Boron Nitride Nanotubes Versus Carbon Nanotubes: A Thermal Stability and Oxidation Behavior Study

Cited by 28 publications

References 27 publications

Boron Nitride Nanotubes for Curcumin Delivery as an Anticancer Drug: A DFT Investigation

Boron Nitride Nanotubes for Curcumin Delivery as an Anticancer Drug: A DFT Investigation

Highly electromagnetic transparent ceramic composite made of boron nitride nanotubes and silicon oxynitride via perhydropolysilazane infiltration method

Boron‐Rich Boron Nitride Nanotubes as Highly Selective Adsorbents for Selected Diatomic Air Pollutants: A DFT Study

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