Characterization of Modified Multiwalled Carbon Nanotubes

Rahmam Syuhaidah; Norani Muti Mohamed; Suriati Sufian

doi:10.4028/www.scientific.net/AMR.925.369

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 925Characterization of Modified Multiwalled Carbon...

Characterization of Modified Multiwalled Carbon Nanotubes

Abstract:

Unique characteristics of MWCNT such as high porosity and high surface area make MWCNT as potential material to be explored in-depth through research. The role of MWCNT as CO₂ adsorbent will be more efficient after modification with 3-Aminopropyl triethoxysilane (APTS) in order to obtain amine functional group. However, direct functionalization is not permissible due to the hydrophobic problem faced by pristine MWCNT. This complication can be resolved by liquid oxidation treatment using different types of oxidants such as nitric acid (HNO₃), sulfuric acid (H₂SO₄), and mixture of nitric and sulfuric acid (HNO₃/H₂SO₄). The characteristics of pristine MWCNT and modified MWCNT were investigated by analyzing the samples using scanning electron microscopy and energy dispersive X-ray spectroscopy (FESEM-EDXs), fourier transform infra-red (FTIR), and Raman spectroscopy technique. Higher degree of functionalization implies higher attachment of amine functional group for higher CO₂ adsorption. Here, MWCNT sample treated with HNO₃/H₂SO₄ and APTS recorded the highest degree of functionalization.

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Periodical:

Advanced Materials Research (Volume 925)

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369-373

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https://doi.org/10.4028/www.scientific.net/AMR.925.369

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Online since:

April 2014

Authors:

Rahmam Syuhaidah*, Norani Muti Mohamed, Suriati Sufian

Keywords:

Characterization, Functionalization, Multi-Walled Carbon Nanotube (MWCNT)

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