Elimination of fluoride ions in water for human consumption using hydroxyapatite as an adsorbent

Badillo-Almaraz, V. E.; Flores, Jaime A.; Arriola, H.; López, Floralba; Ruiz-Ramı̀rez, Lena

doi:10.1007/s10967-007-0335-6

Cited by 34 publications

(16 citation statements)

References 6 publications

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“…Influence of F À Substitution on Chemical, Physical, and Microstructural Properties of HAp Many researchers analyzed the influence of F À incorporation within apatite lattice on the physicochemical properties of hydroxyapatite, such as crystallinity, lattice parameters, thermal stability, solubility, and corrosion resistance [48,345,[374][375][376][377][378].…”

Section: Synthesis Of F-substituted Hapmentioning

confidence: 99%

“…However, two serious health problems have been associated with high concentrations of fluoride in groundwater, namely, dental fluorosis and bone fluorosis. These pathologies can evolve into a more severe illness such as osteosclerosis or exostosis [375,376]. Thus, it is necessary to tailor the F À content in F-HAp to optimize the implant bioactivity and to properly control the amount of fluoride ions released from F-HAp [378].…”

Section: Influence Of Fmentioning

confidence: 99%

See 1 more Smart Citation

Cationic and Anionic Substitutions in Hydroxyapatite

Cacciotti¹

2016

Handbook of Bioceramics and Biocomposites

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Section: Synthesis Of F-substituted Hapmentioning

confidence: 99%

Section: Influence Of Fmentioning

confidence: 99%

Cationic and Anionic Substitutions in Hydroxyapatite

Cacciotti¹

2016

Handbook of Bioceramics and Biocomposites

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“…Besides FHAps promote new mineralization of incipient lesions, prevent, reduce and control dental caries [3]. However, two serious health problems have been associated with high concentrations of fluoride in groundwater: dental and bone fluorosis which can evolve into a more severe illness such as osteosclerosis or exostosis [4,5]. Thus, it is necessary to tailor the F À content in FHAp so as to optimize the bioactivity of the implants in order to control the amount of fluoride ions released from F-HAp, because the higher the level of fluoridation, the more fluoride ions released [6].…”

Section: Introductionmentioning

confidence: 99%

F-substituted hydroxyapatite nanopowders: Thermal stability, sintering behaviour and mechanical properties

Bianco

Cacciotti

Lombardi

et al. 2010

Ceramics International

120

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“…7),9),10) Materials containing HA can be synthesized from biological waste materials such as bones, 10)12) seashells, 13)15) coral, 16) and egg-shells. 17) HA has a composition of Ca 10 (PO 4 ) 6 (OH) 2 and it can form solid solutions with various ions. HA derived from biological waste materials might contain 28 mass % of carbonate ions (carbonated HA; CHA).…”

Section: ¹3mentioning

confidence: 99%

Effects of carbonate inclusion on fluoride ion removal by hydroxyapatite: A discussion from the viewpoint of hydroxyapatite dissolution

Terasaka

Kamitakahara

Yokoi

et al. 2016

J. Ceram. Soc. Japan

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Hydroxyapatite (HA) can be used for removing F ¹ . Materials containing HA for removing F ¹ can be obtained from biological wastes, and these HA might contain carbonate ions. The dissolution behavior of HA should affect the F ¹ removal as fluorapatite (FA) formation at HA surface by the dissolution of HA and subsequent precipitation of FA results in the removal of F ¹ . In this study, we examined the relationship between the dissolution and F ¹ removal rates of carbonated HA (CHA). CHA samples with different carbonate contents were prepared by a hydrothermal process. The dissolution and F ¹ removal rates were investigated by immersing the samples in pH 5 and 7 buffer solutions in the absence and presence of F ¹ , respectively. The dissolution and F ¹ removal rates were increased with an increase of carbonate-ion content in the samples. Dissolution and F ¹ removal rates at pH 5 were larger than that at pH 7. The pseudo-second order kinetic model provides a good fit for the F ¹ removal process. An increase in the kinetic constant of dissolution decreases the kinetic constant of the F ¹ removal process for samples with high carbonate contents at pH 5.

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Elimination of fluoride ions in water for human consumption using hydroxyapatite as an adsorbent

Cited by 34 publications

References 6 publications

Cationic and Anionic Substitutions in Hydroxyapatite

Cationic and Anionic Substitutions in Hydroxyapatite

F-substituted hydroxyapatite nanopowders: Thermal stability, sintering behaviour and mechanical properties

Effects of carbonate inclusion on fluoride ion removal by hydroxyapatite: A discussion from the viewpoint of hydroxyapatite dissolution

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