SYNTHESIS OF FACETTED GAMMA ALUMINA NANOPARTICLES FROM WASTE BEVERAGE ALUMINIUM CANS FOR POTENTIAL CATALYST SUPPORT APPLICATIONS

Rozita Yahaya; Ismail Zainol; Anwar Ul-Hamid; Hasliza Bahruji; Raja Mazuir Raja Ahsan Shah; Muhammad Hafiz Jasinih@Jasri; Radiah Salleh

Rozita Yahaya Universiti Pendidikan Sultan Idris
Ismail Zainol Universiti Pendidikan Sultan Idris
Anwar Ul-Hamid King Fahd University of Petroleum & Minerals
Hasliza Bahruji Universiti Brunei Darussalam
Raja Mazuir Raja Ahsan Shah Coventry University
Muhammad Hafiz Jasinih@Jasri UniversitiMalaysia Sabah
Radiah Salleh Universiti Pendidikan Sultan Idris

Keywords: Green synthesis, γ-Al2O3 nanoparticles, waste aluminium cans, XRD, TEM

Abstract

Green synthesis of gamma alumina (γ-Al₂O₃) nanoparticles (NPs) with facetted and cubeoctahedral morphologies was undertaken from waste (beverage aluminium cans) via precipitation technique and calcination at the temperature of 1000 ^oC. The structural properties of γ-Al₂O₃ were determined with a combination of techniques including BET surface area, field emission scanning electron microscopy (FESEM) with energy dispersive x-ray spectroscopy (EDX), transmission electron microscopy (TEM) and x-ray powder diffraction (XRD). XRD analysis confirmed the formation of γ-Al₂O₃ NPs by comparing with the standard of γ-Al₂O₃ structure. The BET surface area measured was 129 m²/g. High-resolution transmission electron microscopy (HRTEM) analysis provided evidence of surface-enhanced contrast in facetted γ-Al₂O₃NPs structures similar to the commercial γ-Al₂O₃ NPs.