CHARACTERIZATION AND TESTING OF THE MAGHEMITE NANOPARTICLES USED FOR REMOVAL OF HEXAVALENT CHROMIUM FROM AQUEOUS SYNTHETIC SOLUTIONS

被引：13
作者：
Matei, Ecaterina [1 ]
Predescu, Andra Mihaela [1 ]
Predescu, Andrei [1 ]
Vasile, Eugeniu [2 ]
机构：
[1] Univ Politehn Bucuresti, Mat Sci & Engn Fac, Bucharest 040062, Romania
[2] METAV CD, Bucharest 020011, Romania
来源：
ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL | 2011年 / 10卷 / 11期
关键词：
adsorption; chromium removal; maghemite; WASTE-WATER; ADSORPTION; CR(VI); MAGNETITE; EQUILIBRIUM; PEAT;
D O I：
10.30638/eemj.2011.233
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The paper refers at adsorption studies using the maghemite nanoparticles as adsorbent for removal of the hexavalent chromium from aqueous synthetic solutions. Adsorption reached at equilibrium within 10 minutes and was registered as maximum at pH 2.54. The adsorption data were analyzed and fitted by Langmuir isotherm. Investigation methods for characterization of the nanoparticles were X-ray diffraction, scanning and transmission electron microscopy. Also, in order to evaluate the hexavalent chromium concentration the atomic and molecular absorption spectrometry were used.
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收藏
页码：1711 / 1717
页数：7
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