Preparation of Magnetically Modified Zeolites and the Application of Metal Ions Adsorption

Abstract:

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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 m2 g-1 to 100.90 m2 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.

Info:

Periodical:

Advanced Materials Research (Volumes 299-300)

Edited by:

Jianzhong Wang and Jingang Qi

Pages:

764-769

DOI:

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

Citation:

M. L. Yuan et al., "Preparation of Magnetically Modified Zeolites and the Application of Metal Ions Adsorption", Advanced Materials Research, Vols. 299-300, pp. 764-769, 2011

Online since:

July 2011

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Price:

$35.00

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