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Preparation and External Adsorption of Nano Alumina

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The aluminium isopropoxide was used as raw materials and preparing nano alumina was carried out by sol–gel method in the paper. The effects of some parameters such as the amounts of the ethanol, the water and the hydrochloric acid on the efficiency of the reaction and on the size of composite particles were investigated in details. Moreover, the temperature was also discussed as a crucial factor. Based on the orthogonal test, the optimal variables were chosen to synthesize the nano alumina. The adsorption amount of different kinds of surfactants was tested, as well. It has been shown that it would be possible to synthesize nano alumina at 50 °C for 3 h, and the optimal mole ratios of the variables were confirmed by orthogonal test. The adsorptions of nonionic surfactant and reactive anionic surfactant were fast, less than 60 min. The adsorption amount of anionic surfactant was more than nonionic, which was due to the surface of nano alumina presenting positive electricity.
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Keywords: ADSORPTION; NANO ALUMINA; RATIO; SOL–GEL PROCESS

Document Type: Research Article

Publication date: September 1, 2012

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  • Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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