Oxidation-aided cap-removal of chemical vapor deposition-prepared single-wall carbon nanotubes

Furuse, Ayumi; Stević, Dragana; Fujisawa, Kazunori; Kang, Chul; Hayashi, T.; Tanigaki, Naoto

doi:10.1007/s10450-023-00376-0

Cited by 3 publications

(1 citation statement)

References 33 publications

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“…Thus, chemical vapor deposition is a powerful and effective approach for producing carbon nanomaterials with exceptional properties, making it a popular choice in scientific research [45,46]. For instance, a study [47] compared single-walled carbon nanotubes produced via CVD with those obtained using an improved electric arc synthesis method.…”

Section: A B a Bmentioning

confidence: 99%

Carbon nanotubes: revolutionizing construction materials for a sustainable future: A review

Vafaeva,

Zegait

2023

Res. Eng. Struct. Mat.

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This review article explores the use of carbon nanotubes (CNTs) as material enhancers in construction and their advantages. It emphasizes ongoing research to gather accurate data on CNT-enhanced material properties and their role in creating more efficient and stronger building materials. The various methods of obtaining and incorporating CNTs into building materials, including chemical vapor deposition and electric arc synthesis, are discussed. A comparative analysis of building materials with and without CNTs is presented to examine their characteristics. The article also discusses future prospects for CNTs in various industries. The study aims to investigate experimental methods for obtaining CNTs, their properties, and their introduction into building materials. The research methodology involves studying literature sources, analyzing experimental results, and examining the structural, mechanical, and electronic properties of CNTs. Analytical methods based on scientific articles and publications related to CNTs in construction were used to ensure the article's reliability, validity, completeness, and objectivity. The research highlights CNTs' potential as material enhancers in construction, owing to their unique mechanical properties, such as high strength, stiffness, and corrosion resistance. Specific studies demonstrating the use of CNTs to increase the strength of concrete and other construction materials are provided, indicating the promising application of CNTs in future construction projects. However, technical challenges must be addressed, and appropriate standards and regulations should be developed before practical implementation.

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Section: A B a Bmentioning

confidence: 99%

Carbon nanotubes: revolutionizing construction materials for a sustainable future: A review

Vafaeva,

Zegait

2023

Res. Eng. Struct. Mat.

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Efficient Removal of Antibiotics From Water via a Novel Magnetic Hypercrosslinked Polymer

Liu,

Chen,

Shen

et al. 2024

Applied Organom Chemis

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The removal of antibiotic residues from environmental media is a significant challenge in the field of chemistry. In this work, we presented a simple and efficient method for eliminating tetracycline hydrochloride (TC) and chloramphenicol (CAP) from water. Initially, 1,4‐dichlorobenzene and ferrocene were employed as starting materials for the synthesis of hypercrosslinked polymers (HFDs) via Friedel–Crafts alkylation facilitated by a cross‐linking agent. Subsequent to this, an efficient magnetic adsorbent material (MHFD) was developed by the in situ oxidation of the iron source incorporated within the polymer matrix of HFDs. The resulting MHFDs demonstrated an impressive maximum Brunauer–Emmett–Teller (BET)–specific surface area of 1190 m2/g and exhibited a peak saturation magnetization of 11.8 emu/g. This work investigated the effects of four factors on the adsorption performance of MHFD‐10, including contact time, solution pH, dosage of MHFD‐10, and initial antibiotic concentration. The results revealed a remarkable conformity of the adsorption kinetics with the pseudo‐second‐order model and the adsorption isotherms with the Langmuir model. Thermodynamic analysis revealed that the adsorption process is spontaneous and exothermic. Specifically, at a temperature of 20°C, MHFD‐10 achieved maximum adsorption capacities of 193.95 mg/g for CAP and 268.60 mg/g for TC. Furthermore, these materials exhibited exceptional reusability, maintaining high adsorption capacities even after undergoing five consecutive reuse cycles.

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Stochastic desorption of water molecules adsorbed inside single-wall carbon nanotube through nanowindows

Kawamata,

Nagata,

Otsuka

et al. 2024

Adsorption

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Understanding water adsorption/desorption process through nanowindows provides new insights into membrane applications, supercapacitors and elucidation of biological ion separation mechanism. This study evidenced a new stochastic desorption mechanism of water molecules adsorbed inside highly pure single-wall carbon nanotube (SWCNT) through nanowindows, which evidently differs from conventional water desorption mechanism from carbon micropores. This new mechanism was clarified by the comparative analysis of water adsorption/desorption behaviors on endcap-closed SWCNT having nanowindows and endcap-open SWCNT without nanowindows. The water desorption for both open SWCNT samples was deeply associated with unique adsorbed water structures consisting of an ice-like adlayer akin to the graphene wall of SWCNT and core liquid-like water. Nanowindows destabilize the ice-like adlayer, leading to stochastic desorption of water molecules, followed by single-step desorption of adsorbed water through nanowindows of endcap-closed SWCNT having nanowindows. In contrast, water molecules are desorbed from ice-like adlayer and core liquid-like water separately for the endcap-open SWCNT without nanowindows.

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Oxidation-aided cap-removal of chemical vapor deposition-prepared single-wall carbon nanotubes

Cited by 3 publications

References 33 publications

Carbon nanotubes: revolutionizing construction materials for a sustainable future: A review

Carbon nanotubes: revolutionizing construction materials for a sustainable future: A review

Efficient Removal of Antibiotics From Water via a Novel Magnetic Hypercrosslinked Polymer

Stochastic desorption of water molecules adsorbed inside single-wall carbon nanotube through nanowindows

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