ZnO/Ag NANOPARTICLE-DECORATED SINGLE-WALLED CARBON NANOTUBES (SWCNTs) AND THEIR PROPERTIES

2019 ◽  
Vol 27 (03) ◽  
pp. 1950123 ◽  
Author(s):  
MOHAMMAD R. MOHAMMAD ◽  
DUHA S. AHMED ◽  
MUSTAFA K. A. MOHAMMED
Keyword(s):  
Carbon Nanotubes ◽  
Colloidal Stability ◽  
Single Walled Carbon Nanotubes ◽  
Chemical Precipitation ◽  
Biological Applications ◽  
Ag Nanoparticle ◽  
X Ray Diffraction ◽  
X Ray ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Raw single-walled carbon nanotubes (SWCNTs) were oxidized by using sulfuric acid and nitric acid at 3:1 ratio to produce oxygen functional groups attached to SWCNTs surfaces. Then, the oxidized SWCNTs are coated with zinc oxide and silver nanoparticles by chemical precipitation route to synthesize ZnO/Ag-SWCNTs nanocomposite material. The nanocomposite sample was analyzed via zeta potential analyzer, ultraviolet-visible (UV-Vis) spectrophotometer, field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and Raman spectroscopy to investigate colloidal stability, optical, morphological, and structural properties. The SWCNT properties were found to be changed after the addition of ZnO/Ag nanoparticles. Hence, the new ZnO/Ag-SWCNTs nanocomposite is a good candidate for photocatalyst applications and biological applications.

Anomaly of X-ray Diffraction Profile in Single-Walled Carbon Nanotubes

1999 ◽  
Vol 38 (Part 2, No. 6A/B) ◽  
pp. L668-L670 ◽  
Author(s):  
Yutaka Maniwa ◽  
Yoshinori Kumazawa ◽  
Yumi Saito ◽  
Hideki Tou ◽  
Hiromichi Kataura ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
X Ray Diffraction ◽  
Diffraction Profile ◽  
X Ray ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

scholarly journals Pyrene containing liquid crystalline asymmetric phthalocyanines and their composite materials with single-walled carbon nanotubes

2018 ◽  
Vol 22 (01n03) ◽  
pp. 56-63 ◽  
Author(s):  
Esra Nur Kaya ◽  
Maxim S. Polyakov ◽  
Tamara V. Basova ◽  
Mahmut Durmuş ◽  
Aseel Hassan
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Crystalline ◽  
Single Walled Carbon Nanotubes ◽  
Structural Features ◽  
Ammonia Vapor ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

In the present work we have studied the dispersion of single-walled carbon nanotubes in liquid crystalline asymmetrically substituted phthalocyanines (MPc, where M [Formula: see text] Cu, Co, and 2H) bearing one pyrene and six polyoxy groups as side chains. The influence of single-walled carbon nanotubes on the phase behavior of MPcs was investigated using X-ray diffraction, polarized optical microscopy and differential scanning calorimetry. It was demonstrated that the incorporation of small amounts of single-walled carbon nanotubes ([Formula: see text]1 wt.%) does not alter the MPc mesophases. The structural features and the sensor response of composite thin films of MPc with single-walled carbon nanotubes to ammonia vapor (10–50 ppm) was studied and compared with those of the films of pure MPc derivatives.

Metal Coated Functionalized Single-Walled Carbon Nanotubes for Composites Application

2007 ◽  
Vol 561-565 ◽  
pp. 655-658 ◽  
Author(s):  
Qiang Zeng ◽  
Jennifer Luna ◽  
Y. Bayazitoglu ◽  
Kenneth Wilson ◽  
M. Ashraf Imam ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Metal Composite ◽  
X Ray ◽  
Single Walled Carbon ◽  
Transmission Electron ◽  
Nucleation Sites ◽  
Metal Composite Materials ◽  
Walled Carbon Nanotubes

This study is considered as a method for producing multifunctional metal composite materials by using Single-walled Carbon Nanotubes (SWNTs). In this research, various metals (Ni, Cu, Ag ) were successfully deposited onto the surface of SWNTs. It has been found that homogenous dispersion and dense nucleation sites are the necessary conditions to form uniform coating on SWNTs. Functionalization has been applied to achieve considerable improvement in the dispersion of purified single-walled carbon nanotubes. A three-step electroless plating approach was used and the coating mechanism is described in the paper. The samples were characterized by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, and energy-dispersive X-ray spectroscopy (EDX). The application of coated SWNTs in Titanium will be discussed in this paper.

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