SYNTHESIS AND CHARACTERIZATION OF CALCIUM PHOSPHATE AND ITS RELATION TO CR(VI) ADSORPTION PROPERTIES
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| Format: | Artículo científico |
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Universidad Nacional Autónoma de México
2010
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| author | Francisco GRANADOS-CORREA |
| author_facet | Francisco GRANADOS-CORREA |
| contents | SYNTHESIS AND CHARACTERIZATION OF CALCIUM PHOSPHATE AND ITS RELATION TO CR(VI) ADSORPTION PROPERTIES Francisco GRANADOS-CORREA Juan BONIFACIO-MARTÍNEZ Juan SERRANO-GÓMEZ Ciencias de la Tierra synthesis surface area characterization Calcium phosphate Cr(VI) adsorption Calcium phosphate with hydroxyapatite structure was synthesized and its ability to adsorb Cr(VI) from aqueous solution is presented. XRD, BET, IR, TGA, SEM and EDS techniques were used to characterize the obtained material. A pure phase was obtained through a simple synthesis process. The specific surface area of the synthesized powder was found to be 64.5 m2 g-1. The X-ray diffraction pattern shows that the calcium phosphate formed was nanocrystalline with an average grain size of approximately 75 nm. A fast adsorption was observed and in less than 24 h it was found that 2.41 x 10-4 meq g-1 of Cr(VI) ions were adsorbed on calcium phosphate. Desorption experiments showed that Cr(VI) adsorption decreased to 2.23 x 10-4 meq g-1 of calcium phosphate. This behavior is a consequence of partial dehydration of the synthesized material. Calcium phosphate can be effectively used for removing Cr(VI) from aqueous solutions in treatment processes of metal wastes. 2010 artículo científico 0188-4999 https://www.redalyc.org/articulo.oa?id=37014383004 en http://www.redalyc.org/revista.oa?id=370 Revista Internacional de Contaminación Ambiental application/pdf Universidad Nacional Autónoma de México Revista Internacional de Contaminación Ambiental (México) Num.2 Vol.26 |
| format | Artículo científico |
| id | redalyc_37014383004 |
| institution | Redalyc |
| language | en |
| publishDate | 2010 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | SYNTHESIS AND CHARACTERIZATION OF CALCIUM PHOSPHATE AND ITS RELATION TO CR(VI) ADSORPTION PROPERTIES Francisco GRANADOS-CORREA Ciencias de la Tierra synthesis surface area characterization Calcium phosphate Cr(VI) adsorption SYNTHESIS AND CHARACTERIZATION OF CALCIUM PHOSPHATE AND ITS RELATION TO CR(VI) ADSORPTION PROPERTIES Francisco GRANADOS-CORREA Juan BONIFACIO-MARTÍNEZ Juan SERRANO-GÓMEZ Ciencias de la Tierra synthesis surface area characterization Calcium phosphate Cr(VI) adsorption Calcium phosphate with hydroxyapatite structure was synthesized and its ability to adsorb Cr(VI) from aqueous solution is presented. XRD, BET, IR, TGA, SEM and EDS techniques were used to characterize the obtained material. A pure phase was obtained through a simple synthesis process. The specific surface area of the synthesized powder was found to be 64.5 m2 g-1. The X-ray diffraction pattern shows that the calcium phosphate formed was nanocrystalline with an average grain size of approximately 75 nm. A fast adsorption was observed and in less than 24 h it was found that 2.41 x 10-4 meq g-1 of Cr(VI) ions were adsorbed on calcium phosphate. Desorption experiments showed that Cr(VI) adsorption decreased to 2.23 x 10-4 meq g-1 of calcium phosphate. This behavior is a consequence of partial dehydration of the synthesized material. Calcium phosphate can be effectively used for removing Cr(VI) from aqueous solutions in treatment processes of metal wastes. 2010 artículo científico 0188-4999 https://www.redalyc.org/articulo.oa?id=37014383004 en http://www.redalyc.org/revista.oa?id=370 Revista Internacional de Contaminación Ambiental application/pdf Universidad Nacional Autónoma de México Revista Internacional de Contaminación Ambiental (México) Num.2 Vol.26 |
| title | SYNTHESIS AND CHARACTERIZATION OF CALCIUM PHOSPHATE AND ITS RELATION TO CR(VI) ADSORPTION PROPERTIES |
| topic | Ciencias de la Tierra synthesis surface area characterization Calcium phosphate Cr(VI) adsorption |
| url | https://www.redalyc.org/articulo.oa?id=37014383004 |