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Publication RSC Advances
Year2014
Volume4
Pages7998-8003
International

Controlled growth of hydroxyapatite on the surface of natural stilbite from Ethiopia: application in mitigation of fluorosis

Authors:Luis Gómez-Hortiguela Sáinz, J. Perez-Pariente, Yonas Chebude , Isabel Díaz Carretero
Groups of research:Molecular Sieves
This contribution reports the preparation of a composite material based on a natural zeolite rich in calcium, stilbite, on which surface nanosized hydroxyapatite is grown under controlled conditions. Low crystallisation temperatures enable the crystallisation of nano-sized hydroxyapatite crystals, which display a very high intrinsic capacity (based on weight of hydroxyapatite) of fluoride removal. The low cost and easy accessibility of the materials employed for its preparation, as well as the simplicity of the synthesis procedure, make these materials suitable candidates for their use in fluoride removal from drinking water.
Keywords:stilbite, nanosized hydroxyapatite, fluoride removal, drinking water
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