Fe-doped TiO2 Nanoparticles Produced via MOCVD: Synthesis, Characterization, and Photocatalytic Activity.

Iron (Fe)-doped titanium dioxide (TiO2) nanoparticles were produced via the metallorganic chemical vapour deposition (MOCVD) method at 700∘C. Different amounts of ferrocene as the Fe dopant source (0.001–0.05 g) were introduced inside the reactor together with the titanium precursor in order to synt...

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Main Authors: Abdul Rashid, Suraya, Othman, Siti Hajar, Abdullah, Norhafizah, Mohd Ghazi, Tinia Idaty
Format: Article
Language:English
English
Published: 2011
Online Access:http://psasir.upm.edu.my/id/eprint/23383/1/Fe-doped.pdf
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author Abdul Rashid, Suraya
Othman, Siti Hajar
Abdullah, Norhafizah
Mohd Ghazi, Tinia Idaty
author_facet Abdul Rashid, Suraya
Othman, Siti Hajar
Abdullah, Norhafizah
Mohd Ghazi, Tinia Idaty
author_sort Abdul Rashid, Suraya
collection UPM
description Iron (Fe)-doped titanium dioxide (TiO2) nanoparticles were produced via the metallorganic chemical vapour deposition (MOCVD) method at 700∘C. Different amounts of ferrocene as the Fe dopant source (0.001–0.05 g) were introduced inside the reactor together with the titanium precursor in order to synthesize different Fe dopant concentrations of TiO2 nanoparticles. Nitrogen (N2) adsorption results showed that increasing the Fe dopant concentration caused a slight increase in the surface area of the nanoparticles due to the decrease in nanoparticle size. The UV-diffuse reflectance spectra demonstrated an absorption shift in Fe-doped TiO2 nanoparticles to longer wavelengths, thus showing an enhancement of the absorption in the visible spectrum. Bandgap energy values determined from the UV-diffuse reflectance spectra data decreased with an increase in the Fe dopant concentrations. The photocatalytic activity of Fe-doped TiO2 nanoparticles was investigated via degradation of methylene blue under UV and fluorescent light. It was found that Fe doping reduced the photocatalytic activity of the samples. Based on X-ray photoelectron spectroscopy (XPS) results, it is believed that this is due to the unfavourable location of Fe3+ inside the interior matrix of the TiO2 nanoparticles rather than on the exterior surface, which would affect photocatalytic behaviour.
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spelling upm.eprints-233832015-10-08T07:57:00Z http://psasir.upm.edu.my/id/eprint/23383/ Fe-doped TiO2 Nanoparticles Produced via MOCVD: Synthesis, Characterization, and Photocatalytic Activity. Abdul Rashid, Suraya Othman, Siti Hajar Abdullah, Norhafizah Mohd Ghazi, Tinia Idaty Iron (Fe)-doped titanium dioxide (TiO2) nanoparticles were produced via the metallorganic chemical vapour deposition (MOCVD) method at 700∘C. Different amounts of ferrocene as the Fe dopant source (0.001–0.05 g) were introduced inside the reactor together with the titanium precursor in order to synthesize different Fe dopant concentrations of TiO2 nanoparticles. Nitrogen (N2) adsorption results showed that increasing the Fe dopant concentration caused a slight increase in the surface area of the nanoparticles due to the decrease in nanoparticle size. The UV-diffuse reflectance spectra demonstrated an absorption shift in Fe-doped TiO2 nanoparticles to longer wavelengths, thus showing an enhancement of the absorption in the visible spectrum. Bandgap energy values determined from the UV-diffuse reflectance spectra data decreased with an increase in the Fe dopant concentrations. The photocatalytic activity of Fe-doped TiO2 nanoparticles was investigated via degradation of methylene blue under UV and fluorescent light. It was found that Fe doping reduced the photocatalytic activity of the samples. Based on X-ray photoelectron spectroscopy (XPS) results, it is believed that this is due to the unfavourable location of Fe3+ inside the interior matrix of the TiO2 nanoparticles rather than on the exterior surface, which would affect photocatalytic behaviour. 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23383/1/Fe-doped.pdf Abdul Rashid, Suraya and Othman, Siti Hajar and Abdullah, Norhafizah and Mohd Ghazi, Tinia Idaty (2011) Fe-doped TiO2 Nanoparticles Produced via MOCVD: Synthesis, Characterization, and Photocatalytic Activity. Journal of Nanomaterials, 2011. art. no. 571601. pp. 1-8. ISSN 1687-4110 10.1155/2011/571601 English
spellingShingle Abdul Rashid, Suraya
Othman, Siti Hajar
Abdullah, Norhafizah
Mohd Ghazi, Tinia Idaty
Fe-doped TiO2 Nanoparticles Produced via MOCVD: Synthesis, Characterization, and Photocatalytic Activity.
title Fe-doped TiO2 Nanoparticles Produced via MOCVD: Synthesis, Characterization, and Photocatalytic Activity.
title_full Fe-doped TiO2 Nanoparticles Produced via MOCVD: Synthesis, Characterization, and Photocatalytic Activity.
title_fullStr Fe-doped TiO2 Nanoparticles Produced via MOCVD: Synthesis, Characterization, and Photocatalytic Activity.
title_full_unstemmed Fe-doped TiO2 Nanoparticles Produced via MOCVD: Synthesis, Characterization, and Photocatalytic Activity.
title_short Fe-doped TiO2 Nanoparticles Produced via MOCVD: Synthesis, Characterization, and Photocatalytic Activity.
title_sort fe doped tio2 nanoparticles produced via mocvd synthesis characterization and photocatalytic activity
url http://psasir.upm.edu.my/id/eprint/23383/1/Fe-doped.pdf
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AT abdullahnorhafizah fedopedtio2nanoparticlesproducedviamocvdsynthesischaracterizationandphotocatalyticactivity
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