Affiliation:
1. Hohai University
2. Nantong Zhongrun Concrete Company Ltd
Abstract
Cerium oxide powder and aluminum foam loaded cerium oxide were prepared by hydrothermal method using cerium nitrate hexahydrate and dimethyl oxalate (DMO) as raw material. Cerium oxide precursors and cerium oxide particles were characterized by field emission scanning electron microscopy (FESEM). Aluminum foam loaded cerium oxide was characterized by environment scanning electron microscopy (ESEM). On the basis of calculation and fitting of the experimental data, effect of the particle size on the adsorption rate, desorption rate and concentration of surface active sites of the powder and composite absorbents were studied. Results show that the removal of fluoride ions can be realized by exchange adsorption of oxhydryl on the cerium oxide particles surface and the fluoride ions in the solution.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference30 articles.
1. Guidelines for Drinking-Water Quality [Electronic Resource]: Incorporating First Addendum, in: W.H.O. (Ed. ), 2006, p.375–377.
2. M. Amini et. al., Statistical modeling of global geogenic fluoride contamination in groundwaters, Environ. Sci. Technol., 42 (2008) 3662–3668.
3. S. Ghorai, K.K. Pant, Equilibrium, kinetics and breakthrough studies for adsorption of fluoride on activated alumina, Sep. Purif. Technol. 42 (2005) 265–271.
4. S.K. Adhikary et. al., Govindan, Defluoridation during desalination of brackish water by electrodialysis, Desalination, 71 (1989) 301–312.
5. P. Sehn, Fluoride removal with extra low energy reverse osmosis membranes: three years of large scale field experience in Finland, Desalination. 223 (2008) 73–84.
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