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Citation: HAO Cun-Jiang, FENG Qing-Qin, YUAN Jiong-Liang, HAN Yu-Min. Preparation of Nanometer γ-Al₂O₃ Powders and Their Adsorption Behaviour to Pb(Ⅱ) Cd (Ⅱ) Cr(Ⅵ) Ions[J]. Chinese Journal of Applied Chemistry, ;2004, 21(9): 958-961. shu

Preparation of Nanometer γ-Al₂O₃ Powders and Their Adsorption Behaviour to Pb(Ⅱ) Cd (Ⅱ) Cr(Ⅵ) Ions

1.
a Anyang Teacher's College, Anyang 455000;
2.
b National Cleaner Production Center of China, Beijing

Corresponding author: HAO Cun-Jiang,
Received Date: 29 October 2003
Available Online: 13 April 2004
Fund Project:

The nanometer γ-Al₂O₃ powders were prepared by a Sol-Gel method and characterized by TEM, XRD, BET and Zeta potential measurements. The diameters of the powders were ranged in 30 nm to 70 nm. The results showed that the powders have strong adsorption capacity towards Pb(Ⅱ), Cd (Ⅱ) and Cr(Ⅵ) ions at a pH value of medium ranging from 6.0 to 7.0. The adsorption isotherms of metal ions on the powders fit Freundlich adsorption equation. The adsorbed metal ions on the powders could be desorbed in 0.1 mol/L HCl solution and the powder could be regenerated and used without loss of its adsorbability.
- nanometer γ-Al₂O₃,
- Sol-Gel method,
- adsorption,
- Pb(Ⅱ),
- Cd(Ⅱ),
- Cr(Ⅵ)
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Preparation of Nanometer γ-Al2O3 Powders and Their Adsorption Behaviour to Pb(Ⅱ) Cd (Ⅱ) Cr(Ⅵ) Ions

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通讯作者: 陈斌, bchen63@163.com

Preparation of Nanometer γ-Al₂O₃ Powders and Their Adsorption Behaviour to Pb(Ⅱ) Cd (Ⅱ) Cr(Ⅵ) Ions