Nanorurki węglowe. Otrzymywanie, charakterystyka, zastosowania

Huczko, A.; Kurcz, Magdalena; Popławska, Magdalena

doi:10.31338/uw.9788323514541

Cited by 8 publications

(6 citation statements)

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“…Carbon nanotubes are one-dimensional materials characterized by a high length-to-diameter ratio that can be as high as 1000. They are made of rolled single sheets of graphite, referred to as graphene layers, that are a single layer of graphite-structured carbon atoms forming six-membered rings of carbon atoms with sp 2 hybridization [ 6 , 7 , 8 ]. Their unique structure also gives unique properties, e.g., good mechanical and electrical properties, and taking into account other properties, such as low density, high expansion coefficient, or large specific surface area, they might be considered interesting reinforcing materials for composite materials [ 4 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

“…Grafting of carboxyl groups, fluorinated nanotubes and nanotubes functionalized with isocyanates, amino groups, or biomolecules is often used to improve interactions and mechanical properties [ 6 ]. A number of review papers presenting the current knowledge on the mechanical properties of polymers with carbon nanotubes have been written [ 5 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

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Mechanical and Electrical Properties of Epoxy Composites Modified by Functionalized Multiwalled Carbon Nanotubes

et al. 2021

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This paper investigates the effect of multiwalled carbon nanotubes on the mechanical and electrical properties of epoxy resins and epoxy composites. The research concerns multiwalled carbon nanotubes obtained by catalytic chemical vapor deposition, subjected to purification processes and covalent functionalization by depositing functional groups on their surfaces. The study included the analysis of the change in DC resistivity, tensile strength, strain, and Young’s modulus with the addition of carbon nanotubes in the range of 0 to 2.5 wt.%. The effect of agents intended to increase the affinity of the nanomaterial to the polymer on the aforementioned properties was also investigated. The addition of functionalized multiwalled carbon nanotubes allowed us to obtain electrically conductive materials. For all materials, the percolation threshold was obtained with 1% addition of multiwalled carbon nanotubes, and filling the polymer with a higher content of carbon nanotubes increased its conductivity. The use of carbon nanotubes as polymer reinforcement allows higher values of tensile strength and a higher strain percentage to be achieved. In contrast, Young’s modulus values did not increase significantly, and higher nanofiller percentages resulted in a drastic decrease in the values of the abovementioned properties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical and Electrical Properties of Epoxy Composites Modified by Functionalized Multiwalled Carbon Nanotubes

et al. 2021

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“…They reveal extreme resistance to breakage and unique electrical properties as well as excellent heat conductivity. These features make nanotubes very promising materials for many branches of science and techniques, including science of materials for environmental engineering (Huczko et al 2015). Carbon nanotubes (CNTs) are allotropic form of carbon.…”

Section: Carbon Nanotubes Fundamentalsmentioning

confidence: 99%

“…The comparison of physical properties of SWCNTs and MWCNTs is shown in Table 1 (Huczko et al 2015). As an addition to the discussed features, CNTs possess unique morphological and physicochemical properties, including excellent water permeability and adsorption capacity, what is especially important in the case of their usability in membrane separation.…”

Section: )mentioning

confidence: 99%

Archives of Environmental Protection

Bodzek¹,

Konieczny²,

Kwiecińska-Mydlak³

2021

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Environmental applications of carbon nanotubes (CNTs) have recently attracted worldwide attention due to their excellent adsorption capacities and promising physical, chemical and mechanical properties, as well as the preparation of novel membranes with attractive features for water purification. This paper critically reviews the recent progress on the preparation and applications of CNT based membranes in water and wastewater treatment. Various synthesis techniques for the preparation of CNT based membranes are discussed. The functionalization of CNTs, which involves chemical/physical modification of pristine CNTs with different types of functional groups, improves the capabilities of CNT for water and wastewater treatment and/or removal of waterborne contaminants. The CNT-based membrane applications are found to possess a variety of advantages, including improving water permeability, high selectivity and antifouling capability. However, their applications at full scale are still limited by their high cost. Finally, we highlight that CNT membranes with promising removal efficiencies for respective contaminants can be considered for commercialization and to achieve holistic performance for the purpose of water treatment and desalination. This paper may provide an insight for the development of CNT based membranes for water purification in the future. With their tremendous separation performance, low biofouling potential and ultra-high water flux, CNT membranes have the potential to be a leading technology in water treatment, especially desalination.

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“…A major problem when working with CNTs is their agglomeration, leading to difficulties in their dispersion when applied to classic organic solvents and a polymer medium [ 6 ]. Additionally, nanotubes are insoluble in water due to their hydrophobic nature.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Structural Studies of New Selenium Derivatives Based on Covalent Functionalization of MWCNTs

Żarska

Szukiewicz

Coseri³

et al. 2023

IJMS

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Modifying the surface of nanomaterials, such as carbon nanotubes, by introducing heteroatoms or larger functional groups into the structure causes a change in chemical properties—manifested in the increase in reactivity as well as a change in conductivity. This paper presents the new selenium derivatives obtained by a covalent functionalization of brominated multi-walled carbon nanotubes (MWCNTs). The synthesis was carried out in mild conditions (3 days at room temperature), and was additionally assisted with ultrasound. After a two-stage purification, the obtained products were identified and characterized by the following methods: scanning and transmission electron microscopy imaging (SEM and TEM), energy dispersive X-ray microanalysis (EDX), X-ray photoelectron spectroscopy (XPS), Raman and nuclear magnetic resonance (NMR), and X-ray diffraction (XRD). In the selenium derivatives of carbon nanotubes, the content of selenium and phosphorus reached 14 and 4.2 wt%, respectively.

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Nanorurki węglowe. Otrzymywanie, charakterystyka, zastosowania

Cited by 8 publications

References 0 publications

Mechanical and Electrical Properties of Epoxy Composites Modified by Functionalized Multiwalled Carbon Nanotubes

Mechanical and Electrical Properties of Epoxy Composites Modified by Functionalized Multiwalled Carbon Nanotubes

Archives of Environmental Protection

Synthesis and Structural Studies of New Selenium Derivatives Based on Covalent Functionalization of MWCNTs

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