Optimisation of the photonic efficiency of TiO₂ decorated on MWCNTs for Methylene blue photodegradation

Citation

Saion, Elias and Shaari, Abdul Halim and Al-Hada, Naif Mohammed and Keiteb, Aysar Sabah and Abdullahi, Nura (2015) Optimisation of the photonic efficiency of TiO₂ decorated on MWCNTs for Methylene blue photodegradation. PLoS ONE, 10 (5). pp. 1-12. ISSN 1932-6203

Abstract

MWCNTs/TiO₂ nanocomposite was prepared by oxidising MWCNT in H₂SO₄/HNO₃ then decorating it with TiO₂-p25 nanopowder. The composites were characterised using XRD, TEM, FT-IR PL and UV−vis spectroscopy. The TEM images have shown TiO₂ nanoparticles immobilised onto the sidewalls of the MWCNTs. The UV-vis spectrum confirms that the nanocomposites can significantly absorb more light in the visible regions compared with the commercial TiO₂ (P25). The catalytic activity of these nanocomposites was determined by photooxidation of MB aqueous solution in the presence of visible light. The MWCNTs/TiO₂ (1:3) mass ratio showed maximum degradation efficiency. However, its activity was more favourable in alkaline and a neutral pH than an acidic medium.

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Additional Metadata

Item Type:	Article
Divisions:	Faculty of Science
DOI Number:	https://doi.org/10.1371/journal.pone.0125511
Publisher:	Public Library of Science
Keywords:	Nanocomposite; Spectrum; Spectroscopy
Depositing User:	Ms. Nuraida Ibrahim
Date Deposited:	12 Feb 2021 09:39
Last Modified:	12 Feb 2021 09:39
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1371/journal.pone.0125511
URI:	http://psasir.upm.edu.my/id/eprint/45687
Statistic Details:	View Download Statistic

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