Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Carbon Nanotube


Mechanical and Physical Properties of Nano Carbon Tube with Carbon Fiber Reinforced with Polyester Resin

M. Subhi; E. S. AL-Hassani; A.B. Abdul-Hussein

Engineering and Technology Journal, 2017, Volume 35, Issue 5, Pages 465-472

In this research, study some physical and mechanical properties of polymernano composites. The polymernano composites based on unsaturated polyester resin reinforced with carbon fibers (C.F). The samples are attended by hand lay – up method. The samples constituent were polyester resin as matrix with 3% volume fraction from carbon fiber and (0.5%, 1%, 1.5%, 2 %( volume fractions of carbon nanotube. The water absorption, hardness (shore D), flexural test, impact test and toughness fracture properties are studied. Results showed that water absorption increase with addition 3% volume fraction of carbon fiber and Carbon Nanotube, the sample (polyester+3%C.F+0.5% CNTs) has lower water absorption than other samples. The hardness (shore D), flexural test, impact testand toughness fracture for the sample (polyester+3%C.F+0.5% CNTs) has higher value for Nano- composites.

Preparation of Carbon Nanotube by Pulse Laser Ablation of Graphite Target in Demonized Water

Khawla S. khashan; Mayyadah H. Mohsin

Engineering and Technology Journal, 2014, Volume 32, Issue 1, Pages 61-71

In the present work, carbon nanotube was synthesis by pulse laser ablation of graphite target in deionize-water. Fourier Transform Infrared Spectroscopy (FTIR), UV-Visible Spectrophotometer and Transmission electron Microscopy (TEM) were used to study chemical bonding, optical absorption, particle size, structure and morphology of the carbon nanotube. The FTIR absorption peaksat 2092.6
cm-1, 2150 and 1641.3 cm-1is due to the C ≡ C and C = C stretching vibration bondrepresents, which suggest the formation of carbon nanoparticles suspend in this suspension, UV absorption peaks coincide with the electronic transitions corresponding to linear hydrogen – capped polyyne (Cn+1H2), polyynes are important precursor molecular components in the formation of carbon nanotubes. The TEM show the aggregation of the carbon nanoparticles with size ranges from (9.4 – 70.5 nm), the structure and morphology of thenanotube can be observed with diameters (12.5 -25) nm andlength(500 -708.3) nm.

Carbon Nanotube Prepared by Pulse Laser Ablation of Graphite Target in Iso-Propanol Solution

Khawla S. khashan; Mayyadah H. Mohsin

Engineering and Technology Journal, 2013, Volume 31, Issue 16, Pages 3078-3089

In this work carbon nanotube was synthesis by pulse laser ablation of graphite
target in Iso-propanol solution. Fourier Transform Infrared Spectroscopy (FTIR),
UV-Visible Spectrophotometer and Transmission Electron Microscopy (TEM)
were used to study chemical bonding, optical absorption, particle size, structure
and morphology of the carbon nanotube. The FTIR absorption peak at 2335.6,
1647.1 cm-1& 1269.1 cm-1 stretching vibration bond, it is inferred that the C ≡ C ,
C = C and C-C, respectively. Bonds suggests the formation carbon nanoparticles
suspend in this solvent, UV absorption peaks coincide with the electronic
transitions corresponding to linear hydrogen – capped polyyne (Cn+1H2), polyynes
are important precursor molecular components in the formation of carbon
nanotubes. The TEM show the aggregation of the carbon nanoparticles with size
ranges from (1.66 to 41.6 nm), the structure and morphology of the CNT’s with
diameter at range 11.1 – 46.15 nm and length at range 261.1 - 592.3 nm.

Removal of Copper (II) from Wastewater Using Modified Carbon Nanotubes

Mohammed Ibrahim; Adnan A. AbdulRazak; Ayad Dari Jaafar

Engineering and Technology Journal, 2013, Volume 31, Issue 12, Pages 2228-2241

In the present work, carbon nanotubes were prepared by Chemical Vapor
Deposition (CVD) method, acetylene gas was used as a carbon source. In CVD
system, a catalytic growth of CNTs is carried out by decomposition of acetylene
(C2H2 ) at a temperature of 750 0C for one hour ,argon is used as an oxidation
protection gas. The carbon nanotubes produced are purified to remove impurities
such as metal catalyst and then functionalized by treating with HNO3. Scanning
Electron Microscopy (SEM), FT-IR spectra and BET for Surface Area measurement
technique were used for characterization of CNTs. CNTs with about 30 nm in
diameter and with length of several microns were obtained. The effects of initial
concentration of metal (ppm), pH, carbon nanotube (CNT) dosage (mg) and contact
time (min) on the adsorption of Cu+2 ion were studied.
The results show that the pH of aqueous solution is one of the major parameters
that control the adsorption of ion at the solid-water interfaces. Maximum removal
percentage of Cu+2 species is achieved at pH 8, CNT dosage of 50 mg/L and initial
concentration of 50 mg/L and it is 98.39%. The constants of Langmuir and
Freundlich models are obtained from fitting the adsorption equilibrium data. The
correlation coefficients of Langmuir and Freundlich models are 0.75 and 1,
respectively, indicating that the Freundlich model is more appropriate to describe the
adsorption characteristics of Cu+2 onto CNTs.