Removal of chromate ions from water by anionic clays

被引：29
|
作者：
Houri, B
Legrouri, A
Barroug, A
Forano, C
Besse, JP
机构：
[1] Al Akhawayn Univ, Sch Sci & Engn, Ifrane 53000, Morocco
[2] Univ Cadi Ayyad, Chim Phys Lab, Fac Sci Semlalia, Marrakech 40001, Morocco
[3] Univ Clermont Ferrand 2, UPRES A 6002, Lab Mat Inorgan, F-63177 Clermont Ferrand, France
[4] Univ Cadi Ayyad, Fac Sci & Tech, Dept Chim & Environm, Beni Mellal 23000, Morocco
来源：
JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE | 1999年 / 96卷 / 03期
关键词：
anionic clay; layered double hydroxide; ion exchange; chromate; water treatment;
D O I：
10.1051/jcp:1999152
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The removal of chromate ions from aqueous solutions by [Mg-Al-Cl], [Zn-Al-Cl] and [Zn-Cr-Cl] anionic clays was investigated. The solids, prepared by coprecipitation at constant pH, were found to be pure upon characterisation by X-ray diffraction and Fourier-transform infrared spectroscopy. The interaction of the solid materials with CrO42- ions has been studied by W-visible spectroscopy. The treatment of solutions containing 15 to 300 ppm of CrO42- was successful. The sorption capacities of the anionic clays for the CrO42- ions are close to 1 mmol/g.
引用
收藏
页码：455 / 463
页数：9
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