Abstract
Composite SiO2—iron oxide materials were prepared by three experimental procedures. In the first case, the iron oxides were precipitated during a sol-gel process. In the second case, a SiO2 matrix was initially obtained, and the iron oxides were formed by thermal treatment after impregnation of a soluble Fe2+ salt in the previously processed matrix. In the third method, ferrite powders, prepared by wet chemical method, were embedded into a SiO2 based sol-gel matrix. Materials with convenient porosity and nano-sized iron oxide content could be prepared using the mentioned methods. The prepared composite has been tested for arsenic(V) removal.
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Peleanu, I., Zaharescu, M., Rau, I. et al. Composite SiO2—Iron Oxide Materials for Magnetically Intensified Adsorption. Journal of Radioanalytical and Nuclear Chemistry 246, 557–563 (2000). https://doi.org/10.1023/A:1006788806079
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DOI: https://doi.org/10.1023/A:1006788806079