Adsorption of fluoride ions on hydroxyapatite-modified Corbula trigona shell waste: Effect of coexisting anions, temperature and regeneration
Hydroxyapatite (HAp) synthesized using Corbula trigona shell powder (CTSP) in the presence of 0.3 mol/L phosphoric acid solution was used to evaluate the influence of some parameters such as coexisting anions, temperature and regeneration. Cl- and NO3- ions have no significant effect on fluoride rem...
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Iranian Chemical Science and Technologies Association
2023-08-01
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| Series: | Journal of Chemistry Letters |
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| Online Access: | https://www.jchemlett.com/article_172785_c191a75a36d35467368f88a2367939b6.pdf |
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| author | NZebo YAPO Kouakou Adou Judicaël Ano Dan Nonh Kouasssi YAO |
| author_facet | NZebo YAPO Kouakou Adou Judicaël Ano Dan Nonh Kouasssi YAO |
| author_sort | NZebo YAPO |
| collection | DOAJ |
| description | Hydroxyapatite (HAp) synthesized using Corbula trigona shell powder (CTSP) in the presence of 0.3 mol/L phosphoric acid solution was used to evaluate the influence of some parameters such as coexisting anions, temperature and regeneration. Cl- and NO3- ions have no significant effect on fluoride removal efficiency in the studied concentration range while sulfates have a detrimental effect on fluoride removal efficiency. The removal efficiency increases with temperature for all the different concentrations studied (2.2; 5.2; 10.5 and 16.8 mg/L). The thermodynamic results showed that the adsorption process was spontaneous, endothermic and irreversible in nature. The maximum adsorption capacity of fluoride ions was 89.3% in the first cycle and gradually decreased with increasing number of regeneration cycles. HAp could be used up to 5 times during fluoride ion removal with a loss of nearly 56% of its adsorption efficiency. The obtained results showed that HAp derived from Corbula trigona shell waste can be a promising adsorbent for groundwater defluoridation in developing countries. |
| format | Article |
| id | doaj-art-409efdbb6ff14c72a2b5aae6de526dd0 |
| institution | DOAJ |
| issn | 2821-0123 2717-1892 |
| language | English |
| publishDate | 2023-08-01 |
| publisher | Iranian Chemical Science and Technologies Association |
| record_format | Article |
| series | Journal of Chemistry Letters |
| spelling | doaj-art-409efdbb6ff14c72a2b5aae6de526dd02025-08-20T03:16:45ZengIranian Chemical Science and Technologies AssociationJournal of Chemistry Letters2821-01232717-18922023-08-01429510210.22034/jchemlett.2023.393828.1112172785Adsorption of fluoride ions on hydroxyapatite-modified Corbula trigona shell waste: Effect of coexisting anions, temperature and regenerationNZebo YAPO0Kouakou Adou1Judicaël Ano2Dan Nonh3Kouasssi YAO4Laboratoire des Procédés Industriels de Synthèse, de l’Environnement et des Energies Nouvelles (LAPISEN); Institut National Polytechnique Félix Houphouët-Boigny, Yamoussoukro, Côte d’Ivoire.Laboratoire des Procédés Industriels de Synthèse, de l’Environnement et des Energies Nouvelles (LAPISEN); Institut National Polytechnique Félix Houphouët-Boigny, Yamoussoukro, Côte d’Ivoire.Laboratoire des Procédés Industriels de Synthèse, de l’Environnement et des Energies Nouvelles (LAPISEN); Institut National Polytechnique Félix Houphouët-Boigny, Yamoussoukro, Côte d’Ivoire.Laboratoire des Procédés Industriels de Synthèse, de l’Environnement et des Energies Nouvelles (LAPISEN); Institut National Polytechnique Félix Houphouët-Boigny, Yamoussoukro, Côte d’Ivoire.Laboratoire des Procédés Industriels de Synthèse, de l’Environnement et des Energies Nouvelles (LAPISEN); Institut National Polytechnique Félix Houphouët-Boigny, Yamoussoukro, Côte d’Ivoire.Hydroxyapatite (HAp) synthesized using Corbula trigona shell powder (CTSP) in the presence of 0.3 mol/L phosphoric acid solution was used to evaluate the influence of some parameters such as coexisting anions, temperature and regeneration. Cl- and NO3- ions have no significant effect on fluoride removal efficiency in the studied concentration range while sulfates have a detrimental effect on fluoride removal efficiency. The removal efficiency increases with temperature for all the different concentrations studied (2.2; 5.2; 10.5 and 16.8 mg/L). The thermodynamic results showed that the adsorption process was spontaneous, endothermic and irreversible in nature. The maximum adsorption capacity of fluoride ions was 89.3% in the first cycle and gradually decreased with increasing number of regeneration cycles. HAp could be used up to 5 times during fluoride ion removal with a loss of nearly 56% of its adsorption efficiency. The obtained results showed that HAp derived from Corbula trigona shell waste can be a promising adsorbent for groundwater defluoridation in developing countries.https://www.jchemlett.com/article_172785_c191a75a36d35467368f88a2367939b6.pdfcorbula trigona shellshydroxyapatitefluoride ionsgroundwater |
| spellingShingle | NZebo YAPO Kouakou Adou Judicaël Ano Dan Nonh Kouasssi YAO Adsorption of fluoride ions on hydroxyapatite-modified Corbula trigona shell waste: Effect of coexisting anions, temperature and regeneration Journal of Chemistry Letters corbula trigona shells hydroxyapatite fluoride ions groundwater |
| title | Adsorption of fluoride ions on hydroxyapatite-modified Corbula trigona shell waste: Effect of coexisting anions, temperature and regeneration |
| title_full | Adsorption of fluoride ions on hydroxyapatite-modified Corbula trigona shell waste: Effect of coexisting anions, temperature and regeneration |
| title_fullStr | Adsorption of fluoride ions on hydroxyapatite-modified Corbula trigona shell waste: Effect of coexisting anions, temperature and regeneration |
| title_full_unstemmed | Adsorption of fluoride ions on hydroxyapatite-modified Corbula trigona shell waste: Effect of coexisting anions, temperature and regeneration |
| title_short | Adsorption of fluoride ions on hydroxyapatite-modified Corbula trigona shell waste: Effect of coexisting anions, temperature and regeneration |
| title_sort | adsorption of fluoride ions on hydroxyapatite modified corbula trigona shell waste effect of coexisting anions temperature and regeneration |
| topic | corbula trigona shells hydroxyapatite fluoride ions groundwater |
| url | https://www.jchemlett.com/article_172785_c191a75a36d35467368f88a2367939b6.pdf |
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