Characterization of γ- Al2O3 nanopowders synthesized by Co-precipitation method

被引：66

作者：

Jbara, Ahmed S. ^{[1
,2
,3
]}

Othaman, Zulkafli ^{[1
,3
]}

Ati, Ali A. ^{[3
]}

Saeed, M. A. ^{[3
,4
]}

机构：

[1] Univ Teknol Malaysia, Ctr Sustainable Nanomat, Skudai 81310, Johor Bahru, Malaysia

[2] Al Muthanna Univ, Coll Sci, Dept Phys, Samawah 66001, Iraq

[3] Univ Teknol Malaysia, Fac Sci, Dept Phys, Skudai 81310, Johor Bahru, Malaysia

[4] Univ Educ, Div Sci & Technol, Lahore 54770, Pakistan

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2017年 / 188卷

关键词：

Ceramics; Precipitation; Nanostructures; FESEM; X-RAY-DIFFRACTION; SURFACTANT-MODIFIED ALUMINA; GAMMA-AL2O3; TRANSITION; REMOVAL; AREA; NANOPARTICLES; SPECTROSCOPY; ENVIRONMENT; ADSORPTION;

D O I：

10.1016/j.matchemphys.2016.12.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Co-precipitation technique has been used to synthesize gamma-Al2O3 (gamma-Al2O3) nanopowders under annealing temperature effect. The crystalline phase and purity for the prepared powder were characterized by different spectroscopy techniques. XRD analysis confirms the gamma phase of alumina nanopowders with particle diameter ranging from 6 to 24 nm, which confirms the quantum dots formation, which is also supported by the BET measurement. The surface area of the prepared nanopowders is in the range of 109-367 m(2)/g. Morphology analysis indicates that gamma-Al2O3 nanopowders are consisted of grains almost spherical in shape. Some agglomeration of nanoparticles occurs, which become more regular hexagonal shaped with the increasing annealing temperature. The small nanoparticles size and the high surface area from a simple procedure for preparing gamma-Al2O3 may make it more suitable for use as an adsorbent for malachite green. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：24 / 29

页数：6

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