Synthesis and Photocatalytic Activity of Anatase TiO<sub>2</sub> Nanoparticles-coated Carbon Nanotubes

Synthesis and Photocatalytic Activity of Anatase TiO<sub>2</sub> Nanoparticles-coated Carbon Nanotubes

<p>Abstract</p> <p>A simple and straightforward approach to prepare TiO<sub>2</sub>-coated carbon nanotubes (CNTs) is presented. Anatase TiO<sub>2</sub> nanoparticles (NPs) with the average size ~8 nm were coated on CNTs from peroxo titanic acid (PTA) precur...

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Main Authors: Xie Yi, Heo SungHwan, Yoo SeungHwa, Ali Ghafar, Cho SungOh
Format: Article
Language:English
Published: SpringerOpen 2009-01-01
Series:Nanoscale Research Letters
Subjects:
TiO<sub>2</sub>
Carbon nanotubes
Nanoparticles
Photocatalyst
Methyl orange
Online Access:http://dx.doi.org/10.1007/s11671-009-9513-5
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spelling doaj-6c2cc6dd7e6f4bcd91f1aef322bda4de2020-11-24T21:49:04ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2009-01-0153603607Synthesis and Photocatalytic Activity of Anatase TiO<sub>2</sub> Nanoparticles-coated Carbon NanotubesXie YiHeo SungHwanYoo SeungHwaAli GhafarCho SungOh<p>Abstract</p> <p>A simple and straightforward approach to prepare TiO<sub>2</sub>-coated carbon nanotubes (CNTs) is presented. Anatase TiO<sub>2</sub> nanoparticles (NPs) with the average size ~8 nm were coated on CNTs from peroxo titanic acid (PTA) precursor even at low temperature of 100 &#176;C. We demonstrate the effects of CNTs/TiO<sub>2</sub> molar ratio on the adsorption capability and photocatalytic efficiency under UV&#8211;visible irradiation. The samples showed not only good optical absorption in visible range, but also great adsorption capacity for methyl orange (MO) dye molecules. These properties facilitated the great enhancement of photocatalytic activity of TiO<sub>2</sub> NPs-coated CNTs photocatalysts. The TiO<sub>2</sub> NPs-coated CNTs exhibited 2.45 times higher photocatalytic activity for MO degradation than that of pure TiO<sub>2</sub>.</p> http://dx.doi.org/10.1007/s11671-009-9513-5TiO<sub>2</sub>Carbon nanotubesNanoparticlesPhotocatalystMethyl orange
collection DOAJ
language English
format Article
sources DOAJ
author Xie Yi
Heo SungHwan
Yoo SeungHwa
Ali Ghafar
Cho SungOh
spellingShingle Xie Yi
Heo SungHwan
Yoo SeungHwa
Ali Ghafar
Cho SungOh
Synthesis and Photocatalytic Activity of Anatase TiO<sub>2</sub> Nanoparticles-coated Carbon Nanotubes
Nanoscale Research Letters
TiO<sub>2</sub>
Carbon nanotubes
Nanoparticles
Photocatalyst
Methyl orange
author_facet Xie Yi
Heo SungHwan
Yoo SeungHwa
Ali Ghafar
Cho SungOh
author_sort Xie Yi
title Synthesis and Photocatalytic Activity of Anatase TiO<sub>2</sub> Nanoparticles-coated Carbon Nanotubes
title_short Synthesis and Photocatalytic Activity of Anatase TiO<sub>2</sub> Nanoparticles-coated Carbon Nanotubes
title_full Synthesis and Photocatalytic Activity of Anatase TiO<sub>2</sub> Nanoparticles-coated Carbon Nanotubes
title_fullStr Synthesis and Photocatalytic Activity of Anatase TiO<sub>2</sub> Nanoparticles-coated Carbon Nanotubes
title_full_unstemmed Synthesis and Photocatalytic Activity of Anatase TiO<sub>2</sub> Nanoparticles-coated Carbon Nanotubes
title_sort synthesis and photocatalytic activity of anatase tio<sub>2</sub> nanoparticles-coated carbon nanotubes
publisher SpringerOpen
series Nanoscale Research Letters
issn 1931-7573
1556-276X
publishDate 2009-01-01
description <p>Abstract</p> <p>A simple and straightforward approach to prepare TiO<sub>2</sub>-coated carbon nanotubes (CNTs) is presented. Anatase TiO<sub>2</sub> nanoparticles (NPs) with the average size ~8 nm were coated on CNTs from peroxo titanic acid (PTA) precursor even at low temperature of 100 &#176;C. We demonstrate the effects of CNTs/TiO<sub>2</sub> molar ratio on the adsorption capability and photocatalytic efficiency under UV&#8211;visible irradiation. The samples showed not only good optical absorption in visible range, but also great adsorption capacity for methyl orange (MO) dye molecules. These properties facilitated the great enhancement of photocatalytic activity of TiO<sub>2</sub> NPs-coated CNTs photocatalysts. The TiO<sub>2</sub> NPs-coated CNTs exhibited 2.45 times higher photocatalytic activity for MO degradation than that of pure TiO<sub>2</sub>.</p>
topic TiO<sub>2</sub>
Carbon nanotubes
Nanoparticles
Photocatalyst
Methyl orange
url http://dx.doi.org/10.1007/s11671-009-9513-5
work_keys_str_mv AT xieyi synthesisandphotocatalyticactivityofanatasetiosub2subnanoparticlescoatedcarbonnanotubes
AT heosunghwan synthesisandphotocatalyticactivityofanatasetiosub2subnanoparticlescoatedcarbonnanotubes
AT yooseunghwa synthesisandphotocatalyticactivityofanatasetiosub2subnanoparticlescoatedcarbonnanotubes
AT alighafar synthesisandphotocatalyticactivityofanatasetiosub2subnanoparticlescoatedcarbonnanotubes
AT chosungoh synthesisandphotocatalyticactivityofanatasetiosub2subnanoparticlescoatedcarbonnanotubes
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