Preparation and Characterization of Al2O3 Nanoparticles with Dodecyl Trimethyl Ammonium Bromide as Surfactant

Min Wang; Wei Yi Dan; Jian Fen Li; Jie Feng Ding; Guo Qing Zhou; Qiang Sheng Wang

doi:10.4028/www.scientific.net/AMM.401-403.800

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 401-403Preparation and Characterization of Al2O3...

Preparation and Characterization of Al₂O₃ Nanoparticles with Dodecyl Trimethyl Ammonium Bromide as Surfactant

Abstract:

nanoAl₂O₃ has been synthesized by homogeneous precipitation method using dodecyl trimethyl ammonium bromide (DTAB) as surfactant. The as-prepared powder was characterized by FT-IR, XRD, TEM and SEM. The results indicate the surfactant existence in the precursors but disappeared in the products. This is mainly due to the combination of precursor and surfactant, which results in particles of nanosize. The nucleation and growth rate during the precipitation has also been controlled by the addition of surfactant. During the calcination process, the surfactant has decomposed and volatilized into air. The XRD characterization shows the calcined powders were γ-Al₂O₃ particles with mean size of 27 nm, which was in accordance with TEM characterization. The morphology of the prepared alumina particles has also been investigated by SEM and showed that the powder has a spherical morphology with a uniform particle size.

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Periodical:

Applied Mechanics and Materials (Volumes 401-403)

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800-803

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.401-403.800

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Online since:

September 2013

Authors:

Min Wang, Wei Yi Dan, Jian Fen Li, Jie Feng Ding, Guo Qing Zhou, Qiang Sheng Wang

Keywords:

Alumina, Homogeneous Precipitation Method, Nanomaterial, Preparation

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