Elaboration of hybrid cotton fibers treated with an ionogel/carbon nanotube mixture using a sol-gel approach

AbstractIonic liquid (IL) synergy with other materials may influence their properties significantly. Nevertheless, their advantageous liquid state turns out to be an impediment for applications in devices which need stable solid state shaping. In the current study we present a novel method where new siloxane functionalized IL acts as a modifier for carbon nanotubes (CNTs) and titanium alkoxide-CNT coated hybrid cotton fibers. This elaborated route carried out by interconnected and entangled ionic liquid, sol-gel and solid carbon nanotube networks opens up opportunities for functionalization of sol-gel materials with different shapes and sizes. The comparison of properties of IL, ionogel, ionogel/CNT mixture and titanium alkoxide coatings is performed. Ionogel-modified cotton fibers have increased hydrophobicity, linear density, breaking force and ultimate strength as compared to the uncoated cotton fibers. These properties are ensured even after washing threads with water. A uniformly coated CNT network around the fibers strengthens the material and increases its electric conductivity. New type of hybrids can be utilized in formulations which have UV-shielding and hydrophobic properties as well as for antibacterial properties. Characterization studies of the product were carried out by energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), optical microscopy and infrared (IR) spectroscopy.

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Carbon Nanotube–Ionic Liquid (CNT–IL) Nanocamposite Modified Sol-Gel Derived Carbon-Ceramic Electrode for Simultaneous Determination of Sunset Yellow and Tartrazine in Food Samples

Food Analytical Methods ◽

10.1007/s12161-012-9556-6 ◽

2012 ◽

Vol 6 (5) ◽

pp. 1388-1397 ◽

Cited By ~ 54

Author(s):

Mir Reza Majidi ◽

Reza Fadakar Bajeh Baj ◽

Abdolhossein Naseri

Keyword(s):

Ionic Liquid ◽

Carbon Nanotube ◽

Simultaneous Determination ◽

Sol Gel ◽

Food Samples ◽

Sunset Yellow ◽

Carbon Ceramic Electrode ◽

Carbon Ceramic

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The Impact of Ionic Liquid Loading in Three-Dimensional Carbon Nanotube Networks on the Separation of CO2/CH4 Fluid Mixtures: Insights from Molecular Simulations

The Journal of Physical Chemistry C ◽

10.1021/acs.jpcc.1c00346 ◽

2021 ◽

Author(s):

Ioannis Skarmoutsos ◽

Emmanuel N. Koukaras ◽

Emmanuel Klontzas

Keyword(s):

Ionic Liquid ◽

Carbon Nanotube ◽

Three Dimensional ◽

Molecular Simulations ◽

Liquid Loading ◽

Fluid Mixtures ◽

Separation Of Co2 ◽

The Impact ◽

Carbon Nanotube Networks

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Ionic-liquid-mediated poly(dimethylsiloxane)- grafted carbon nanotube fiber prepared by the sol-gel technique for the head space solid-phase microextraction of methyl tert -butyl ether using GC

Journal of Separation Science ◽

10.1002/jssc.201300796 ◽

2013 ◽

Vol 37 (1-2) ◽

pp. 127-134 ◽

Cited By ~ 14

Author(s):

Hossein Vatani ◽

Ali Sarafraz Yazdi

Keyword(s):

Ionic Liquid ◽

Carbon Nanotube ◽

Solid Phase Microextraction ◽

Solid Phase ◽

Sol Gel ◽

Methyl Tert Butyl Ether ◽

Butyl Ether ◽

Tert Butyl ◽

Carbon Nanotube Fiber ◽

Gel Technique

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Generation-recombination and 1/f noise in carbon nanotube networks

Applied Physics Letters ◽

10.1063/5.0054845 ◽

2021 ◽

Vol 118 (24) ◽

pp. 242102

Author(s):

A. Rehman ◽

A. Krajewska ◽

B. Stonio ◽

K. Pavlov ◽

G. Cywinski ◽

...

Keyword(s):

Carbon Nanotube ◽

Carbon Nanotube Networks

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Carbon Nanotube Gas Sensor Fabricated on Anodic Aluminum Oxide

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.124-126.1309 ◽

2007 ◽

Vol 124-126 ◽

pp. 1309-1312

Author(s):

Nguyen Duc Hoa ◽

Nguyen Van Quy ◽

Gyu Seok Choi ◽

You Suk Cho ◽

Se Young Jeong ◽

...

Keyword(s):

Carbon Nanotubes ◽

Carbon Nanotube ◽

Gas Sensor ◽

Chemical Vapor ◽

Fast Response ◽

Device Fabrication ◽

Alumina Oxide ◽

Response And Recovery ◽

New Type ◽

P Type

A new type of gas sensor was realized by directly depositing carbon nanotube on nano channels of the anodic alumina oxide (AAO) fabricated on p-type silicon substrate. The carbon nanotubes were synthesized by thermal chemical vapor deposition at a very high temperature of 1200 oC to improve the crystallinity. The device fabrication process was also developed. The contact of carbon nanotubes and p-type Si substrate showed a Schottky behavior, and the Schottky barrier height increased with exposure to gases while the overall conductivity decreased. The sensors showed fast response and recovery to ammonia gas upon the filling (400 mTorr) and evacuation.

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Study on the nonlinear vibration of embedded carbon nanotube via the Hamiltonian-based method

Journal of Low Frequency Noise Vibration and Active Control ◽

10.1177/14613484211032757 ◽

2021 ◽

pp. 146134842110327

Author(s):

Kang-Jia Wang ◽

Guo-Dong Wang

Keyword(s):

Carbon Nanotubes ◽

Carbon Nanotube ◽

Nonlinear Vibration ◽

Elastic Medium ◽

Numerical Results ◽

Frequency Property ◽

New Novel ◽

Novel Method

This article mainly studies the vibration of the carbon nanotubes embedded in elastic medium. A new novel method called the Hamiltonian-based method is applied to determine the frequency property of the nonlinear vibration. Finally, the effectiveness and reliability of the proposed method is verified through the numerical results. The obtained results in this work are expected to be helpful for the study of the nonlinear vibration.

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Synthesis, Structural, Morphological and Thermal Characterization of Five Different Silica-Polyethylene Glycol-Chlorogenic Acid Hybrid Materials

Polymers ◽

10.3390/polym13101586 ◽

2021 ◽

Vol 13 (10) ◽

pp. 1586

Author(s):

Michelina Catauro ◽

Pavel Šiler ◽

Jiří Másilko ◽

Roberta Risoluti ◽

Stefano Vecchio Ciprioti

Keyword(s):

Polyethylene Glycol ◽

Chlorogenic Acid ◽

Hybrid Materials ◽

Sol Gel ◽

Antibacterial Properties ◽

Silica Matrix ◽

Sem Images ◽

Fixed Amount ◽

Organic Components ◽

Free Material

The present study investigated the structure, morphology, thermal behavior, and bacterial growth analysis of novel three-component hybrid materials synthesized by the sol-gel method. The inorganic silica matrix was weakly bonded to the network of two organic components: a well-known polymer such as polyethylene glycol (PEG, average molar mass of about 4000 g/mol), and an antioxidant constituted by chlorogenic acid (CGA). In particular, a first series was made by a 50 wt% PEG-based (CGA-free) silica hybrid along with two 50 wt% PEG-based hybrids containing 10 and 20 wt% of CGA (denoted as SP50, SP50C10 and SP50C20, respectively). A second series contained a fixed amount of CGA (20 wt%) in silica-based hybrids: one was the PEG-free material (SC20) and the other two contained 12 and 50 wt% of PEG, respectively (SP12C20 and SP50C20, respectively), being the latter already included in the first series. The X-ray diffraction (XRD) patterns and scanning electron microscope (SEM) images of freshly prepared materials confirmed that all the materials were amorphous and homogeneous regardless of the content of PEG or CGA. The thermogravimetric (TG) analysis revealed a higher water content was adsorbed into the two component hybrids (SP50 and SC20) because of the availability of a larger number of H-bonds to be formed with water with respect to those of silica/PEG/CGA (SPC), where silica matrix was involved in these bonds with both organic components. Conversely, the PEG-rich materials (SP50C10 and SP50C20, both with 50 wt% of the polymer) retained a lower content of water. Decomposition of PEG and CGA occurred in almost the same temperature interval regardless of the content of each organic component. The antibacterial properties of the SiO2/PEG/CGA hybrid materials were studied in pellets using either Escherichia coli and Enterococcus faecalis, respectively. Excellent antibacterial activity was found against both bacteria regardless of the amount of polymer in the hybrids.

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