Dewetting assisted self-assembly of carbon nanotube into circular nanorings

Basu, Surita; Patra, Prabir; Sarkar, Jayati

doi:10.1016/j.ces.2022.117961

Cited by 4 publications

(2 citation statements)

References 78 publications

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“…This greatly extends the lifespan of these free charge carriers, improving the photooxidative degradation. SWCNT has also been found to change the surface energy of PS which might have made the PS NPs surface more prone to be photo oxidatively degraded and hence change the physical structure quickly. The FESEM images confirm that the photooxidative reactions occurred at the interface of the PS–MoO 3 and PS–MoO 3 /SWCNT surfaces rather than at the whole bulk.…”

Section: Resultsmentioning

confidence: 99%

Synergistic Photocatalysis by α-MoO₃ Nanostructures and SWCNT Nanocomposites for Efficient Cross-Linking and Oxidative Degradation of Polystyrene Nanoplastics

Singh,

Kapoor,

Singh

2024

ACS Appl. Mater. Interfaces

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Nanoplastics (NPs) generated from plastic debris weathering pose a significant threat to ecosystems. The ubiquity of plastics driven by their advantageous physical properties, necessitates the development of efficient degradation and removal methods. Polystyrene (PS), a common and hazardous aquatic NP is a long-chain hydrocarbon with alternating phenyl groups. This study investigates the photooxidative degradation of PS NPs under UV light irradiation using synthesized MoO 3 nanoflakes, nanobelts, and MoO 3 /SWCNT nanocomposites. Raman spectroscopy, X-ray diffraction, atomic force microscopy, high-resolution transmission electron microscopy, energy dispersive X-ray, Brunauer−Emmett− Teller, and UV−vis spectroscopy were employed to characterize the photocatalyst. Field emission scanning electron microscopy was used to visualize morphological changes in the spherical PS NPs upon interaction with the photocatalysts. MoO 3 nanoflakes acting as a photocatalyst under UV irradiation for 24 h achieved an impressive degradation efficiency exceeding 19%. This treatment significantly reduced the average diameter of PS NPs from 220 to 178 nm. Notably, even higher degradation efficiencies were observed with MoO 3 nanobelts and nanocomposites as a complete change in the spherical morphology of PS NPs is observed. Fourier transform infrared spectroscopy elucidated the chemical transformations of PS during degradation. The observed changes in PS NPs structure due to photocatalytic oxidation at different time intervals indicate a promising approach.

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Section: Resultsmentioning

confidence: 99%

Synergistic Photocatalysis by α-MoO₃ Nanostructures and SWCNT Nanocomposites for Efficient Cross-Linking and Oxidative Degradation of Polystyrene Nanoplastics

Singh,

Kapoor,

Singh

2024

ACS Appl. Mater. Interfaces

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“…Even more intriguing, such self-assembling networks have demonstrated an ability to incorporate carbon nanotubes (CNTs) and align them both on surface and in the bulk of polymer, which resulted in significant boost of electrical conductivity. While both the arrangement of carbon nanotubes into circular patterns [ 9 , 10 ] and self-assembly of polymers and metal-organic compounds into circular structures [ 11 , 12 ] has been studied previously, the self-assembly of bis-(Zn)salphen compounds deserves a special attention both from fundamental point of view due to its unusual neuron-like pattern of interconnected “rings-and-rods” as well as from application standpoint as an approach to produce conductive networks from very diluted solutions of conductive fillers.…”

Section: Introductionmentioning

confidence: 99%

Adhesion of Bis-Salphen-Based Coordination Polymers to Graphene: Insights from Free Energy Perturbation Study

et al. 2022

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Manipulation of nanoscale objects using molecular self-assembly is a potent tool to achieve large scale nanopatterning with small effort. Coordination polymers of bis-salphen compounds based on zinc have demonstrated their ability to align carbon nanotubes into micro-scale networks with an unusual “rings-and-rods” pattern. This paper investigates how the compounds interact with pristine and functionalized graphene using density functional theory calculations and molecular dynamic simulations. Using the free energy perturbation method we will show how the addition of phenyl side groups to the core compound and functionalization of graphene affect the stability, mobility and conformation adopted by a dimer of bis-(Zn)salphen compound adsorbed on graphene surface and what it can reveal about the arrangement of chains of bis-(Zn)salphen polymer around carbon nanotubes during the self-assembly of microscale networks.

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Interfacial swelling engineered superhydrophobic and electrically conductive coatings for multifunctional piezoresistive sensors

Luo,

Xiao,

Yan

et al. 2024

Progress in Organic Coatings

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Dewetting assisted self-assembly of carbon nanotube into circular nanorings

Cited by 4 publications

References 78 publications

Synergistic Photocatalysis by α-MoO₃ Nanostructures and SWCNT Nanocomposites for Efficient Cross-Linking and Oxidative Degradation of Polystyrene Nanoplastics

Synergistic Photocatalysis by α-MoO₃ Nanostructures and SWCNT Nanocomposites for Efficient Cross-Linking and Oxidative Degradation of Polystyrene Nanoplastics

Adhesion of Bis-Salphen-Based Coordination Polymers to Graphene: Insights from Free Energy Perturbation Study

Interfacial swelling engineered superhydrophobic and electrically conductive coatings for multifunctional piezoresistive sensors

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Dewetting assisted self-assembly of carbon nanotube into circular nanorings

Cited by 4 publications

References 78 publications

Synergistic Photocatalysis by α-MoO3 Nanostructures and SWCNT Nanocomposites for Efficient Cross-Linking and Oxidative Degradation of Polystyrene Nanoplastics

Synergistic Photocatalysis by α-MoO3 Nanostructures and SWCNT Nanocomposites for Efficient Cross-Linking and Oxidative Degradation of Polystyrene Nanoplastics

Adhesion of Bis-Salphen-Based Coordination Polymers to Graphene: Insights from Free Energy Perturbation Study

Interfacial swelling engineered superhydrophobic and electrically conductive coatings for multifunctional piezoresistive sensors

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Product

Resources

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Synergistic Photocatalysis by α-MoO₃ Nanostructures and SWCNT Nanocomposites for Efficient Cross-Linking and Oxidative Degradation of Polystyrene Nanoplastics

Synergistic Photocatalysis by α-MoO₃ Nanostructures and SWCNT Nanocomposites for Efficient Cross-Linking and Oxidative Degradation of Polystyrene Nanoplastics