Surface modification and functionalization of carbon nanotube with some organic compounds

Abstract

In this work the surface modification and functionalization of carbon nanotubes (CNTs) were investigated. CNTs were firstly treated by acid mixture H2SO4/HNO3 to introduce the carboxylic group onto the surface of CNTs. This carboxylic group was used as reaction precursor in the functionalization. Two functional groups, dodecylamine (DDA) and 3-aminopropyl triethoxysilane (3-APTES), were successfully covalently attached to CNTs. The functionalized CNTs were characterized by Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, differential scanning calorimetry and thermal gravimetric analysis (DSC/TGA) and transmission electron microscopy (TEM) methods. The CNTs attached to the organofunctional moieties have greater versatility for further utilization in different application fields such as biology, nanocomposites, solar energy, etc.

Anchoring Mechanism of ZnO Nanoparticles on Graphitic Carbon Nanofiber Surfaces through a Modified Co‐Precipitation Method to Improve Interfacial Contact and Photocatalytic Performance

“…This is mainly because, in ah ybrid nanostructure where nanoparticles are attached to af ibrous matrix, the overall BET surfacea rea and BJH pore size/volume of the hybrid includes contributionsf rom both the nanoparticlesa nd the fibrous matrix. [55] The final weight loss of the hybrids in the range of 940-970 8Ci sa ttributedt ot he formation of zinc oxide in the pure phase, which is also observed in the DTAa nd DSC thermograms. Therefore, ac ombinatorial effect of more CNF surfaces, wide size distribution, and highly non-uniform attachment of the ZnO nanoclusters with CNFs in the CZNO-300/400 samples led to greater surface roughness variations in this hybrid nanostructure (Figure 4a).…”

Binding studies of hydroxylated Multi-Walled Carbon Nanotubes to hemoglobin, gamma globulin and transferrin

“…The peak at 1092 cm −1 obtained in the range between 1000-1200 cm − 1 can be assigned to C≡O bonding. This result clearly indicates the OH group attachment onto the surface of MWCNTs [18].…”

Mechanical Properties of Nanofilled Polypropylene Composites

“…In the region 1000-1100 cm -1 the signals become more intense compared to the pure PP, probably due to the presence of functionalized MWCNT [22], the intensity increase of 1078 cm -1 peak resulting from stretching vibration of C-O [23].…”