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Aqueous starch as a stabilizer in zinc oxide nanoparticle synthesis via laser ablation.


Zamiri, Reza and Zakaria, Azmi and Abbastabar Ahangar, Hossein and Darroudi, Majid and Khorsan Zak, Ali and P.C. Drummen, Gregor (2012) Aqueous starch as a stabilizer in zinc oxide nanoparticle synthesis via laser ablation. Journal of Alloys and Compounds, 516 (1). pp. 41-48. ISSN 0925-8388; ESSN:1873-4669


Zinc oxide is a semiconductor with exceptional thermal, luminescent and electrical properties, even compared with other semiconducting nanoparticles. Its potential for advanced applications in lasers and light emitting diodes, as bio-imaging agent, in biosensors and as drug delivery vehicles, in ointments, coatings and pigments has pulled zinc oxide into the focus of various scientific and engineering research fields. Recently we started investigating if nanoparticle synthesis via laser ablation in the presence of natural stabilizers allows control over size and shape and constitutes a useful, uncomplicated alternative over conventional synthesis methods. In the current paper, we determined the ability of natural starch to act as a size controller and stabilizer in the preparation of zinc oxide nanoparticles via ablation of a ZnO plate in a starch solution with a nanosecond Q-Switched Nd:YAG pulsed laser at its original wavelength (λ = 1064 nm). Our results show that the particle diameter decreases with increasing laser irradiation time to a mean nanoparticle size of approximately 15 nm with a narrow size distribution. Furthermore, the obtained particle size in starch solution is considerably smaller compared with analogous ZnO nanoparticle synthesis in distilled water. The synthesized and capped nanoparticles retained their photoluminescent properties, but showed blue emission rather than the often reported green luminescence. Evaluation of old preparations compared with freshly made samples showed no agglomeration or flocculation, which was reflected in no significant change in the ZnO nanoparticle size and size distribution. Overall, our experimental results demonstrate that starch can indeed be effectively used to both control particle size and stabilize ZnO nanoparticles in solution.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1016/j.jallcom.2011.11.118
Publisher: Elsevier
Keywords: Laser ablation; Zinc oxide; Semiconductor; Nanoparticle; Starch; Stabilizer; Photoluminescence; UV-Vis Spectroscopy; XRD; FTIR.
Depositing User: Nur Farahin Ramli
Date Deposited: 15 Jul 2013 02:40
Last Modified: 18 Nov 2015 02:46
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.jallcom.2011.11.118
URI: http://psasir.upm.edu.my/id/eprint/25216
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