Carbon Nanotubes: A Review Article

Kaur, R.

doi:10.22214/ijraset.2018.4827

Cited by 23 publications

(19 citation statements)

References 13 publications

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“…As a result, recent studies and analysis have focused on improving the quality of CNTs generated. Due to their inherent intriguing properties, carbon nanotubes are a major substance in nanotechnology elds and the future novel applications (Kaur et al, 2018).…”

Section: Carbon Nanotubes (Cnts): Historymentioning

confidence: 99%

“…SWCNT is made up of just one sheet of graphene and has a simple structure that allows it to be twisted effortlessly. It also had a low purity (Kaur et al, 2018). SWCNT was created by rolling a single layer of graphite (a different term for graphene) into a smooth cylinder (long wrapped graphene sheets).…”

Section: Classi Cation Of Cntsmentioning

confidence: 99%

“…MWCNTs have an interlayer spacing of around 3.3 Å, which is similar to the distance between graphene layers in graphite (Aqel et al, 2012). Furthermore, no catalysts are needed in the production of these multi-walled carbon tubes (Kaur et al, 2018). Figure 1 depicted the two kinds of carbon nanotubes, while Table 1 compared the two types of CNTs.…”

Section: Classi Cation Of Cntsmentioning

confidence: 99%

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A Review on Carbon Nanotubes (CNT): Structure, Synthesis, Purification and Properties for Modern day Applications

Taib

Rahman

Matin

et al. 2021

Preprint

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Carbon nanotubes (CNTs), composed of graphene/graphite sheets, have been used since the 1990s and become one of the most important materials owing to its massive applications in energy, environmental and life sciences. In general, there are two types of known CNTs such as single-walled CNTs (SWCNTs) and multi-walled CNTs (MWCNTs). They have broader and novel fields of application in the fabric and textile industries, wastewater treatment, energy storage, and also as structural reinforcement materials. CNTs are reported to synthesize by arc discharge, laser ablation and chemical vapor deposition (CVD) methods where CVD technique is found to be the most versatile and largely used method. In all the methods synthesized CNTs contain various degrees of impurities which are purified by oxidation treatment, ultra-sonication, magnetic purification, etc. CNTs have wide range of industrial applications due to their remarkable mechanical, thermal, electrical, chemical and biological properties. In this review, medical and biomedical applications of CNTs and CNTs-based composites are specially focused due to their significant applications in these fields along with their structure, classification, preparation and related properties. Besides, CNTs’ toxicity and biosafety, especially on the human body, are also discussed in this review article.

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Section: Carbon Nanotubes (Cnts): Historymentioning

confidence: 99%

Section: Classi Cation Of Cntsmentioning

confidence: 99%

Section: Classi Cation Of Cntsmentioning

confidence: 99%

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A Review on Carbon Nanotubes (CNT): Structure, Synthesis, Purification and Properties for Modern day Applications

Taib

Rahman

Matin

et al. 2021

Preprint

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“…Note that it is reasonable to assume the possibility of releasing a negligible amount of hematite nanomaterials to the aqueous solution during the centrifugation and filtration steps of the synthesis. However, the leached-out nanoparticles can be recycled and used for other applications [56,57,64]. Therefore, our synthesis route is environmentally friendly and a green approach.…”

Section: Possible Applications Of This Adsorption Processmentioning

confidence: 99%

“…Comparison of Cd 2+ and Ni 2+ ions adsorbents and their maximum adsorption capacities[14,[60][61][62][63][64].…”

mentioning

confidence: 99%

Synthesis of Hematite Nanodiscs from Natural Laterites and Investigating Their Adsorption Capability of Removing Ni2+ and Cd2+ Ions from Aqueous Solutions

et al. 2020

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In this work, disc-like hematite (Fe2O3) nanoparticles were prepared using a readily available inexpensive earth material, ferruginous laterite, via a low-cost synthesis route. Prepared hematite nanoparticles were characterized using X-Ray diffraction (XRD), inductively coupled plasma mass spectroscopy (ICP-MS), particle size analyzer (PSA), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and nitrogen adsorption-desorption analyzer. The performance of hematite nanoparticles was evaluated as a heavy metal ion adsorbent. Batch adsorption experiments were conducted to study the adsorption behaviour of Ni2+ and Cd2+ ions as a function of the amount of adsorbent, contact time, and pH. Adsorption data fitted to the linearized Langmuir and Freundlich kinetic models were compared and discussed. The correlation coefficient (R2) was used to determine the best fit kinetic model. Our data fitted the Langmuir kinetic model well and the highest adsorption efficiencies were found to be 62.5 mg/g for Ni2+ and 200 mg/g for Cd2+, respectively. Due to high surface area, pore volume with active sites, and sorption capabilities, hematite nanoparticles can be used as efficient and economical nano-adsorbents for the removal of Ni2+ and Cd2+ ions from industrial wastewater.

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Poly(o‐anisidine), its composites, derivatives and applications: A review

Vispute,

Mukke,

2023

Polymers for Advanced Techs

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Poly(o‐anisidine) (POA) is from the conductive polymer family and derivative of polyaniline. It can be mainly synthesized in two routes, chemical synthesis produces a powdered polymer, whereas electrochemical synthesis produces thin films. The plain POA explored for the anticorrosive applications on aluminum, copper, and brass surface. The POA is also explored in nanoparticles and nanofibers form. Along with plain POA, the composites of POA are popular and various materials such as carbon nanotube, graphene, vanadium pentoxide, cerium dioxide, are explored for the synthesis of POA composites. The POA composites find application as catalyst, for anticorrosive coating, for conductivity and membrane applications. The composites are used for sensor, detector, ion exchange membrane, anticorrosive coating on steel and aluminum substrate. The various derivatives of POA such as poly(2‐anisidine), poly(aniline‐co‐2‐anisidine), poly(aniline‐co‐o‐anisidine‐co‐o‐toluidine), poly(aniline‐co‐o‐anisidine), and poly(o‐anisidine‐co‐o‐toluidine) are explored in the literature and they have shown better performance as compared to the plain POA in terms of anticorrosive coating as well as they used in development of sensors and detectors. The health hazards of POA is slightly touched at the end of the review hence the study gives the brief idea about POA, its composites, POA derivatives with its wide range of applications in various sectors.

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Carbon Nanotubes: A Review Article

Cited by 23 publications

References 13 publications

A Review on Carbon Nanotubes (CNT): Structure, Synthesis, Purification and Properties for Modern day Applications

A Review on Carbon Nanotubes (CNT): Structure, Synthesis, Purification and Properties for Modern day Applications

Synthesis of Hematite Nanodiscs from Natural Laterites and Investigating Their Adsorption Capability of Removing Ni2+ and Cd2+ Ions from Aqueous Solutions

Poly(o‐anisidine), its composites, derivatives and applications: A review

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