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.com
Volume 8
Medicinal Chemistry
ISSN: 2161-0444
Medicinal Chemistry 2018
June 14-15, 2018
June 14-15, 2018 | Barcelona, Spain
10
th
World Congress on
Medicinal Chemistry and Drug Design
Sorption affinities of chromium on natural phosphate and its derivative hydroxyapatite
Kenza Fanidi
Mohammed V University, Morocco
M
oroccan natural phosphate and its converted hydroxyapatite were used to develop an effective adsorbent suitable for the
removal of trivalent and hexavalent chromium from aqueous solution. The converted hydroxyapatite was prepared from
natural phosphate and characterized using various techniques of characterization. Thus, the adsorption of Cr (III) and Cr2O72-
ions were investigated to understand the adsorptive selectivity of two chromium oxidative degrees on natural phosphate and its
derivative apatite using batch system at room temperature. The sorption results showed a high affinity of natural phosphate for
the Cr2O72- than c-HAP contrary to Cr (III) adsorption related to the presence of silica groups present in natural phosphate
while the converted apatite has a good affinity for Cr (III) ions. The adsorption behavior of both adsorbent fitted the Langmuir
and Freundlich isotherm models implying that the adsorption mostly occurred through a heterogeneous binding of metal to
the surface of the adsorbent.
kenza_fanidi@live.frMed chem (Los Angeles) 2018, Volume 8
DOI: 10.4172/2161-0444-C1-040