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Electrospray deposition of titanium dioxide (TiO2) nanoparticles


Halimi, Siti Umairah and Abu Bakar, Noor Fitrah and Ismail, Siti Norazian and Abd Hashib, Syafiza and Naim, Mohd Nazli (2013) Electrospray deposition of titanium dioxide (TiO2) nanoparticles. In: 5th Nanoscience and Nanotechnology Symposium (NNS 2013), 23-25 Oct. 2013, Surabaya, Indonesia. (pp. 57-62).

Abstract / Synopsis

Deposition of titanium dioxide (TiO2) nanoparticles was conducted by using eletrospray method. 0.05wt% of titanium dioxide suspension was prepared and characterized by using Malvern Zetasizer prior to the experiment. From Zetasizer results, stable suspension condition was obtained which is at pH 2 with zeta potential value of ±29.0 mV. In this electrospraying, the suspension was pumped at flowrate of 5 ml/hr by using syringe pump. The input voltage of 2.1 kV was applied at the nozzle tip and counter electrode. Electrosprayed particles were collected on the grounded aluminium plate substrate which was placed at 10–20 cm from counter electrode. Particles were then characterized using FESEM and average size of electrosprayed particles obtained. Initial droplet size was calculated by scaling law and compared with FE-SEM results in order to prove droplet fission occur during electrospray. Due to the results obtained, as the working distance increase from 10–20 cm the deposited TiO2 droplet size decrease from 247–116 nm to show droplet fission occur during the experiment.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
DOI Number:
Publisher: AIP Publishing LLC
Keywords: Titanium dioxide (TiO2); Zeta potential; Electrospray
Depositing User: Nabilah Mustapa
Date Deposited: 29 Sep 2017 10:26
Last Modified: 29 Sep 2017 10:26
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