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Synthesis of Gamma-Alumina Nanopowders Using Waste Metal Aluminum and Stability Surfactants

Sabereh Nazari

School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran

E-mail Address: s.nazari@ut.ac.ir

Corresponding author.

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Sadegh Nazari

Faculty of Engineering, University College of Omran & Tosee, Hamedan, Iran

E-mail Address: Sadeghnazari370@yahoo.com

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Fariba Mansourizadeh

Department of Animal Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran

E-mail Address: Mansourizadeh.f@ut.ac.ir

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, and

Gholamreza Karimi

Department of Mining Engineering, Imam Khomeini International University, Qazvin, Iran

E-mail Address: gr_karimi@ikiu.ac.ir

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https://doi.org/10.1142/S0219581X19500145Cited by:0 (Source: Crossref)

Abstract

In this study, high purity gamma-alumina nanopowders with crystalline structures have been prepared via a sol–gel process by waste metal aluminum, HCl, NaOH, Polyethylene glycol (PEG) and polyvinyl alcohol (PVA). Polyethylene glycol and polyvinyl alcohol have been used as stabilizing agents. The characterization of the samples has been performed utilizing XRD, FTIR, SEM, N₂ adsorption/desorption techniques. Prepared samples of gamma-alumina at 800^∘C with PEG has an average crystallite size of 2.58nm, average particle size of 21nm, specific surface area (SSA) of 65.55m²/g, and pore volume of $\sim$ $\sim$ 0.06cm³/g. The average crystallite size of 3.07nm, average particle size of 31nm, specific surface area of 131.25m²/g, and pore volume of $\sim$ $\sim$ 0.14cm³/g, were obtained using PVA surfactant.

Keywords:

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