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Effect of Postdeposition Heat Treatment on the Crystallinity, Size, and Photocatalytic Activity of TiO2 Nanoparticles Produced via Chemical Vapour Deposition
Joint Authors
Abdul Rashid, Suraya
Othman, Siti Hajar
Abdullah, Norhafizah
Mohd Ghazi, Tinia Idaty
Source
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-06-23
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Engineering Sciences and Information Technology
Chemistry
Civil Engineering
Abstract EN
Titanium dioxide (TiO2) nanoparticles were produced using chemical vapour deposition (CVD) at different deposition temperatures (300–700°C).
All the samples were heat treated at their respective deposition temperatures and at a fixed temperature of 400°C.
A scanning electron microscope (SEM), a transmission electron microscope (TEM), and X-ray diffraction (XRD) were used to characterize the nanoparticles in terms of size and crystallinity.
The photocatalytic activity was investigated via degradation of methylene blue under UV light.
The effects of post deposition heat treatment are discussed in terms of crystallinity, nanoparticle size as well as photocatalytic activity.
Crystallinity was found to have a much larger impact on photocatalytic activity compared to nanoparticle size.
Samples having a higher degree of crystallinity were more photocatalytically active despite being relatively larger in size.
Surprisingly, the photocatalytic activity of the samples reduced when heat treated at temperatures lower than the deposition temperature despite showing an improvement in crystallinity.
American Psychological Association (APA)
Othman, Siti Hajar& Abdul Rashid, Suraya& Mohd Ghazi, Tinia Idaty& Abdullah, Norhafizah. 2010. Effect of Postdeposition Heat Treatment on the Crystallinity, Size, and Photocatalytic Activity of TiO2 Nanoparticles Produced via Chemical Vapour Deposition. Journal of Nanomaterials،Vol. 2010, no. 2010, pp.1-10.
https://search.emarefa.net/detail/BIM-477537
Modern Language Association (MLA)
Othman, Siti Hajar…[et al.]. Effect of Postdeposition Heat Treatment on the Crystallinity, Size, and Photocatalytic Activity of TiO2 Nanoparticles Produced via Chemical Vapour Deposition. Journal of Nanomaterials No. 2010 (2010), pp.1-10.
https://search.emarefa.net/detail/BIM-477537
American Medical Association (AMA)
Othman, Siti Hajar& Abdul Rashid, Suraya& Mohd Ghazi, Tinia Idaty& Abdullah, Norhafizah. Effect of Postdeposition Heat Treatment on the Crystallinity, Size, and Photocatalytic Activity of TiO2 Nanoparticles Produced via Chemical Vapour Deposition. Journal of Nanomaterials. 2010. Vol. 2010, no. 2010, pp.1-10.
https://search.emarefa.net/detail/BIM-477537
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-477537