Preparation of magnetically modified zeolites and the application of metal ions adsorption

被引：5

作者：

Yuan Ming Liang ^{[1
]}

Yu Liang ^{[1
]}

Tao Jia Hua ^{[1
]}

Song Cong ^{[1
]}

机构：

[1] Cent S Univ, Dept Inorgan Mat, Sch Resources Proc & Bioengn, Changsha, Hunan, Peoples R China

来源：

MATERIALS AND MANUFACTURING, PTS 1 AND 2 | 2011年 / 299-300卷

关键词：

magnetically modified zeolites; natural zeolites; adsorption; metal ions; DRINKING-WATER; CLINOPTILOLITE; REMOVAL; CONTAMINANTS;

D O I：

10.4028/www.scientific.net/AMR.299-300.764

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Natural zeolites combined with the magnetic iron oxides are prepared by a chemical coprecipitation process. A detailed characterization of our magnetically modified zeolite (MMZ) is given, including powder X-ray diffraction (XRD), nitrogen adsorption and vibrating sample magnetometer (VSM). The results reveal that in comparison with Na-zeolite, the structure of MMZ has no obvious change but its surface area increases from 25.13 m(2) g(-1) to 100.90 m(2) g(-1). The adsorption properties of MMZ to Pb2+ and Cu2+ were studied. The results show that the maximum loading capacities for Pb2+ and Cu2+ in the initial concentration range are 123.74 and 14.633 mg g(-1) respectively. The MMZ can be used as an adsorbent for removal of heavy metal ions from industrial effluents or municipal waters, and the saturated adsorbent is separated from the medium by a simple magnetic process.

引用

页码：764 / 769

页数：6

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