Journal of Nanotechnology / 2012 / Article / Tab 1

Research Article

Manufacturing Strategy for Multiwalled Carbon Nanotubes as a Biocompatible and Innovative Material

Table 1

Basic properties of MWCNTs.

MWCNT typeMWCNT-150Testing method
abbreviation nameNT15NT15+FeNT15-30NT15-26NT15-22NT15-13

Graphitization temperature (°C)3000b3000b3000c2600c2200c 
Additional treatment F e 2 O 3 d  
Diameter (nm)150FE-SEM
Length (μm)7–10FE-SEM
Iron content (ppm)34730<20<206013000ICP-MS
𝑅 value ( 𝐼 d /I)a0.30.30.20.50.91.4Raman spectroscopy (785 nm)

MWCNT typeMWCNT-80Testing method
abbreviation nameNT08NT08+FeNT08-30NT08-26NT08-22NT08-13

Graphitization temperature (°C)3000b3000b3000c2600c2200c 
Additional treatment F e 2 O 3 d  
Diameter (nm)80FE-SEM
Length (μm)7–10FE-SEM
Iron content (ppm)17002200<20<2036021000ICP-MS
𝑅 value ( 𝐼 d /I)an/aRaman spectroscopy (785 nm)

aR refers to the intensity of D band over the intensity of G band.
bMWCNTs were heated at Showa denko.
cMWCNTs were heated in our laboratory.
dNT15 and NT08 were added Fe2O3  (1000 : 1), mixed, and sonicated in 0.02% triton-X100 solution. Then, they were filtered and dried at 120°C.
n/a = not available.

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