![]() This work shows that under floating catalyst chemical vapor conditions in the direct spinning method, used both in research and industry, the ceramic reactor tube plays an unsuspected active role in CNT growth, leading for example to doubling of reaction yield when mullite (Al 4+2xSi 2−2xO 10−x(x ≈ 0:4)) is used instead of alumina (Al 2O 3), but without affecting CNT morphology in terms of number of layers, purity or degree of graphitization. Controlled synthesis and scalability are amongst the most pressing challenges to further materialize the potential of CNT fibers. ![]() Read more about how to correctly acknowledge RSC content.Macroscopic fibers of carbon nanotubes (CNT) have emerged as an ideal architecture to exploit the exceptional properties of CNT building blocks in applications ranging from energy storage to reinforcement in structural composites. ![]() Permission is not required) please go to the Copyright ![]() If you want to reproduce the wholeĪrticle in a third-party commercial publication (excluding your thesis/dissertation for which If you are the author of this article, you do not need to request permission to reproduce figuresĪnd diagrams provided correct acknowledgement is given. Provided correct acknowledgement is given. If you are an author contributing to an RSC publication, you do not need to request permission Please go to the Copyright Clearance Center request page. To request permission to reproduce material from this article in a commercial publication, Provided that the correct acknowledgement is given and it is not used for commercial purposes. This article in other publications, without requesting further permission from the RSC, Chattopadhyay,Ĭreative Commons Attribution-NonCommercial 3.0 Unported Licence. This includes the need for functionalization of CNTs, methods and types of functionalization, and properties of functionalized CNTs and their applications especially with respect to material and biomedical sciences, water purification, and drug delivery systems.įunctionalized carbon nanotubes: synthesis, properties and applications in water purification, drug delivery, and material and biomedical sciences This review article discusses in short the synthesis, properties and applications of CNTs. Specifically modified CNTs have been utilized for bone tissue engineering and as a novel and versatile drug delivery vehicle. Functionalized CNTs have also been demonstrated as one of the promising nanomaterials for the decontamination of water due to their high adsorption capacity and specificity for various contaminants. Non covalently functionalized carbon nanotubes have been used as a substrate for the immobilization of a large variety of biomolecules to impart specific recognition properties for the development of miniaturized biosensors as well as designing of novel bioactive nanomaterials. Functionalized CNTs have been used successfully for the development of high quality nanocomposites, finding wide application as chemical and biological sensors, in optoelectronics and catalysis. Different research efforts have been devoted towards both covalent and non-covalent functionalization for different applications. By chemical functionalization, organic functional groups are generated/attached to the surfaces as well as the tip of CNTs which opens up the possibilities for tailoring the properties of nanotubes and extending their application areas. Recent developments concerning reliable methods for the functionalization of carbon nanotubes offer an additional thrust towards extending their application areas. Surface modification is required to overcome the agglomeration and increase their dispersability leading to enhanced interactions of the functionalized CNTs with matrix materials/polymer matrices. In spite of the mentioned attractive features, they tend to agglomerate due to their inherent chemical structure which limits their application. Carbon nanotubes (CNTs) are considered as one of the ideal materials due to their high surface area, high aspect ratio, and impressive material properties, such as mechanical strength, and thermal and electrical conductivity, for the manufacture of next generation composite materials.
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