Growth and characterization of multi-walled carbon nanotubes using Ni-MCM41 mesoporous catalyst and their application as adsorbent

Amirah Ahmad, . and Mohd Hasmizam Razali, . and Khairul Anuar Mat Amin, . Growth and characterization of multi-walled carbon nanotubes using Ni-MCM41 mesoporous catalyst and their application as adsorbent. pp. 16-26. ISSN 1823-8556

Carbon nanotubes (CNTs) are employed by chemical vapour deposition (CVD) method using Ni-MCM41 mesoporous as a catalyst. Ni-MCM41 mesoporous catalysts are synthesised by nickels incorporation into the MCM41 framework through hydrothermal method using sodium metasilicate as silica source and cetyltrimethylammonium bromide as a template. The powder X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) results confirmed the synthesised CNTs grown on the Ni-MCM41 catalyst are multi-walled carbon nanotubes (MWNTs). Scanning electron microscopy micrograph of synthesised CNTs showed the hairlike structure with the diameter in between 2-5 nm and a few hundred nanometres in length. The synthesised CNTs are tested as an adsorbent for methyl orange removal in aqueous solution. Results show that 98 of methyl orange is removed by synthesised CNTs after 1 hour of reaction and comparable to commercial MWNTs at 100 . This study shows that the synthesised CNTs have a great potential to be used as an adsorbent for methyl orange removal.

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Abstract

Carbon nanotubes (CNTs) are employed by chemical vapour deposition (CVD) method using Ni-MCM41 mesoporous as a catalyst. Ni-MCM41 mesoporous catalysts are synthesised by nickels incorporation into the MCM41 framework through hydrothermal method using sodium metasilicate as silica source and cetyltrimethylammonium bromide as a template. The powder X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) results confirmed the synthesised CNTs grown on the Ni-MCM41 catalyst are multi-walled carbon nanotubes (MWNTs). Scanning electron microscopy micrograph of synthesised CNTs showed the hairlike structure with the diameter in between 2-5 nm and a few hundred nanometres in length. The synthesised CNTs are tested as an adsorbent for methyl orange removal in aqueous solution. Results show that 98 of methyl orange is removed by synthesised CNTs after 1 hour of reaction and comparable to commercial MWNTs at 100 . This study shows that the synthesised CNTs have a great potential to be used as an adsorbent for methyl orange removal.

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Item Type:	Article
AGROVOC Term:	Carbon
AGROVOC Term:	Catalysts
AGROVOC Term:	Adsorbents
AGROVOC Term:	Purification
AGROVOC Term:	Heating
AGROVOC Term:	Nickel
AGROVOC Term:	Sulphuric acid
AGROVOC Term:	Silica
AGROVOC Term:	Nitric acid
AGROVOC Term:	Distilled water
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/24212

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