Purification for Carbon Nanotubes Synthesized by Flame Fragments Deposition via Hydrogen Peroxide and Acetone

Hammadi, Asmaa H.; Jasim, Ahmed M.; Abdulrazzak, Firas H.; Al-Sammarraie, Abdulkareem Mohammed Ali; Cherifi, Yacine; Boukherroub, Rabah; Hussein, Falah H.

doi:10.3390/ma13102342

Cited by 25 publications

(9 citation statements)

References 31 publications

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“…No other peaks related to impurities were detected in both cases, which confirms the high purity of these materials in terms of BN and carbon, respectively. Similar XRD patterns for high-purity BNNTs and CNTs have been reported in recent studies [17,18].…”

Section: Microstructure and Surface Chemistrysupporting

confidence: 86%

Boron Nitride Nanotubes Versus Carbon Nanotubes: A Thermal Stability and Oxidation Behavior Study

et al. 2020

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Nanotubes made of boron nitride (BN) and carbon have attracted considerable attention within the literature due to their unique mechanical, electrical and thermal properties. In this work, BN and carbon nanotubes, exhibiting high purity (>99%) and similar surface areas (~200 m2/g), were systematically investigated for their thermal stability and oxidation behavior by combining thermal gravimetric analysis and differential scanning calorimetry methods at temperatures of up to ~1300 °C under a synthetic air flow environment. The BN nanotubes showed a good resistance to oxidation up to ~900 °C and fully transformed to boron oxide up to ~1100 °C, while the carbon nanotubes were stable up to ~450 °C and almost completely combusted up to ~800 °C. The different oxidation mechanisms are attributed to the different chemical nature of the two types of nanotubes.

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Section: Microstructure and Surface Chemistrysupporting

confidence: 86%

Boron Nitride Nanotubes Versus Carbon Nanotubes: A Thermal Stability and Oxidation Behavior Study

et al. 2020

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“…In the region 5–50° (2θ), complexes 1 ( a – c ), and 1g showed sharp diffraction patterns, suggesting that the complexes exist in a crystalline structure. While complexes 1 ( d – f ), and 1h showed very few diffraction peaks, they indicated that the complexes were between crystalline and amorphous phases [ 42 ]. The crystallite sizes of the samples were evaluated using Scherrer’s equation [ 43 , 44 ].…”

Section: Resultsmentioning

confidence: 99%

Catalytic, Theoretical, and Biological Investigations of Ternary Metal (II) Complexes Derived from L-Valine-Based Schiff Bases and Heterocyclic Bases

Sasikumar

Subramani²,

Tamilarasan

et al. 2023

Molecules

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A new series of ternary metal complexes, including Co(II), Ni(II), Cu(II), and Zn(II), were synthesized and characterized by elemental analysis and diverse spectroscopic methods. The complexes were synthesized from respective metal salts with Schiff’s-base-containing amino acids, salicylaldehyde derivatives, and heterocyclic bases. The amino acids containing Schiff bases showed promising pharmacological properties upon complexation. Based on satisfactory elemental analyses and various spectroscopic techniques, these complexes revealed a distorted, square pyramidal geometry around metal ions. The molecular structures of the complexes were optimized by DFT calculations. Quantum calculations were performed with the density functional method for which the LACVP++ basis set was used to find the optimized molecular structure of the complexes. The metal complexes were subjected to an electrochemical investigation to determine the redox behavior and oxidation state of the metal ions. Furthermore, all complexes were utilized for catalytic assets of a multi-component Mannich reaction for the preparation of -amino carbonyl derivatives. The synthesized complexes were tested to determine their antibacterial activity against E. coli, K. pneumoniae, and S. aureus bacteria. To evaluate the cytotoxic effects of the Cu(II) complexes, lung cancer (A549), cervical cancer (HeLa), and breast cancer (MCF-7) cells compared to normal cells, cell lines such as human dermal fibroblasts (HDF) were used. Further, the docking study parameters were supported, for which it was observed that the metal complexes could be effective in anticancer applications.

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“…1. The method used in the purification of the CNTs that have been synthesized in this section is a modification of the method described in previous work 11 . Purification of the CNTs that have been synthesized was accomplished in this manner by calcination at 350 C for 2 hours, followed by oxidation with hydrogen peroxide H 2 O 2 , followed by treatment with acetone.…”

Section: Methodsmentioning

confidence: 99%

“…Carbon nanotubes can be created using a variety of techniques, including laser ablation LA, arc discharge AD, chemical vapor deposition (CVD) and flame fragments deposition (FFD) 10,11 . Most CNT synthesis procedures result in CNTs that are combined with graphitic nanoparticles, catalytic particles, and amorphous carbon are examples of amorphous and crystalline impurities.…”

Section: Introductionmentioning

confidence: 99%

Carbon Nanotubes: Synthesis via Flame Fragment Deposition (FFD) Method from Liquefied Petroleum Gas

2023

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The current study uses the flame fragment deposition (FFD) method to synthesize carbon nanotubes (CNTs) from Iraqi liquefied petroleum gas (LPG), which is used as a carbon source. To carry out the synthesis steps, a homemade reactor was used. To eliminate amorphous impurities, the CNTs were sonicated in a 30 percent hydrogen peroxide (H 2 O 2 ) solution at ambient temperature. To remove the polycyclic aromatic hydrocarbons (PAHs) generated during LPG combustion, sonication in an acetone bath is used. The produced products were investigated and compared with standard Multi-walled carbon nanotube MWCNTs (95%), Sigma, Aldrich, using X-ray diffraction (XRD), thermo gravimetric analysis (TGA), Raman spectroscopy, scanning electron spectroscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS) and Transmission Electron Microscopy (TEM). Under the applied experimental circumstances, the obtained characterization data confirm the synthesis of multi-wall carbon nanotubes (MWCNTs) with portion from few wall carbon nanotubes (FWCNTs). The average diameter of synthesized Carbon nanotubes ranged from 31.26 to 78.00 nm, with a purity of more than 65 percent.

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Purification for Carbon Nanotubes Synthesized by Flame Fragments Deposition via Hydrogen Peroxide and Acetone

Cited by 25 publications

References 31 publications

Boron Nitride Nanotubes Versus Carbon Nanotubes: A Thermal Stability and Oxidation Behavior Study

Boron Nitride Nanotubes Versus Carbon Nanotubes: A Thermal Stability and Oxidation Behavior Study

Catalytic, Theoretical, and Biological Investigations of Ternary Metal (II) Complexes Derived from L-Valine-Based Schiff Bases and Heterocyclic Bases

Carbon Nanotubes: Synthesis via Flame Fragment Deposition (FFD) Method from Liquefied Petroleum Gas

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