![](/images/graphics-bg.png)
Direct Precipitation and Characterization of ZnO Nanoparticles
Joint Authors
Rashad, M.
Moharram, A. H.
Mansour, S. A.
Hussein, M. A.
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-06
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
ZnO nanoparticles are prepared through hydrolysis and condensation of zinc acetate dihydrate by potassium hydroxide in alcoholic medium at low temperatures.
Thermal gravimetric analysis (TGA) of the precursor is made in order to specify the temperature range over which the weight loss and thermal effect are significant.
X-ray diffraction of the as-prepared specimens shows that the hexagonal ( a = 3.2459 Å, c = 5.1999 Å) structure is the predominant crystallographic structure.
According to Scherer’s formula, the average size of the nanoparticles is 22.4 ± 0.6 nm.
The structural properties of the synthesized ZnO nanoparticles have been confirmed using the TEM micrographs.
The optical energy gap of the ZnO nanoparticles, as obtained from applying Tauc’s equation, is equal to 3.52 eV, which is higher than that of the bulk material.
Absorption peak of the as-prepared sample is 298 nm which is highly blue shifted as compared to the bulk (360 nm).
Large optical energy gap and highly blue shifted absorption edge confirm that the prepared ZnO nanoparticle exhibits strong quantum confinement effect.
American Psychological Association (APA)
Moharram, A. H.& Mansour, S. A.& Hussein, M. A.& Rashad, M.. 2014. Direct Precipitation and Characterization of ZnO Nanoparticles. Journal of Nanomaterials،Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-1041833
Modern Language Association (MLA)
Moharram, A. H.…[et al.]. Direct Precipitation and Characterization of ZnO Nanoparticles. Journal of Nanomaterials No. 2014 (2014), pp.1-5.
https://search.emarefa.net/detail/BIM-1041833
American Medical Association (AMA)
Moharram, A. H.& Mansour, S. A.& Hussein, M. A.& Rashad, M.. Direct Precipitation and Characterization of ZnO Nanoparticles. Journal of Nanomaterials. 2014. Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-1041833
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1041833