Title: Characterisation of CNTs/TiO₂ nano composites and investigation of composite's photo reactivity

Authors: Hamid Omidvar; Mohammad Sajjadnejad; Keyvan Mirzaei; Zahra Sadeghian; Sara Shirazi; Ali Mozafari; Amirreza Azadmehr

Addresses: Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran ' Young Researchers and Elite Club, Borujerd Branch, Islamic Azad University, Borujerd, Iran ' Department of Material Engineering, Iran University of Science and Technology, Tehran, Iran ' Department of Gas, Research Institute of Petroleum Industry (RIPI), Tehran, Iran ' Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran ' Young Researchers and Elite Club, Borujerd Branch, Islamic Azad University, Borujerd, Iran ' Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran

Abstract: Titanium dioxide (TiO₂) nanoparticles have been successfully deposited onto acid treated carbon nanotubes via a simple chemical route. It was demonstrated that the CNTs were coated by well-dispersed TiO₂ nanoparticles. The CNTs-TiO₂ nano composites were characterised by XRD, FTIR, SEM, EDAX and TEM. The photo catalytic activity of the prepared nano composites was tested under UV irradiation using the results of phenol degradation. Different composites were used as catalyst to investigate the effect of CNTs type and TiO₂/CNT mass ratio on phenol removal. UV-vis spectroscopy was used to measure phenol adsorption.

Keywords: carbon nanotubes; CNTs; titanium dioxide; TiO2 nanoparticles; nanocomposites; composite photoreactivity; coating; nanotechnology; photocatalysis; phenol degradation; phenol adsorption; ultraviolet light; UV irradiation.

DOI: 10.1504/IJMPT.2016.075502

International Journal of Materials and Product Technology, 2016 Vol.52 No.3/4, pp.333 - 346

Received: 07 Jan 2015
Accepted: 20 Aug 2015
Published online: 27 Mar 2016 *

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