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Synthetic alkaline-earth hydroxyapatites: Influence of their structural, textural, and morphological properties over Co2+ ion adsorption capacity

Francisco Granados-Correa

Francisco Granados-Correa

Instituto Nacional de Investigaciones Nucleares, Departamento de QuímicaCiudad de México, México
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Granados-Correa, Francisco
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Juan Bonifacio-Martínez

Juan Bonifacio-Martínez

Instituto Nacional de Investigaciones Nucleares, Departamento de QuímicaCiudad de México, México
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Bonifacio-Martínez, Juan
  
10 lis 2021
Synthetic alkaline-earth hydroxyapatites: Influence of their structural, textural, and morphological properties over Co2+ ion adsorption capacity's Cover Image
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Data publikacji: 10 lis 2021
Zakres stron: 252 - 264
Otrzymano: 19 maj 2021
Przyjęty: 20 wrz 2021
DOI: https://doi.org/10.2478/msp-2021-0022
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© 2021 Francisco Granados-Correa et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Chemical distribution of cobalt ionic species in aqueous media as a function of pH.
Chemical distribution of cobalt ionic species in aqueous media as a function of pH.

Fig. 2

XRD patterns of synthesized alkaline-earth hydroxyapatite powders prepared via chemical precipitation method followed by calcination at 1,100°C: (A) Ba-HAp, (B) Sr-HAp, and (C) Ca-HAp. Ba-HAp, barium hydroxyapatite; Ca-HAp, calcium hydroxyapatite; Sr-HAp, strontium hydroxyapatite.
XRD patterns of synthesized alkaline-earth hydroxyapatite powders prepared via chemical precipitation method followed by calcination at 1,100°C: (A) Ba-HAp, (B) Sr-HAp, and (C) Ca-HAp. Ba-HAp, barium hydroxyapatite; Ca-HAp, calcium hydroxyapatite; Sr-HAp, strontium hydroxyapatite.

Fig. 3

N2 adsorption-desorption isotherms of (A) Ba-HAp, (B) Sr-HAp, and (C) Ca-HAp powders. Ba-HAp, barium hydroxyapatite, Ca-HAp, calcium hydroxyapatite; Sr-HAp, strontium hydroxyapatite.
N2 adsorption-desorption isotherms of (A) Ba-HAp, (B) Sr-HAp, and (C) Ca-HAp powders. Ba-HAp, barium hydroxyapatite, Ca-HAp, calcium hydroxyapatite; Sr-HAp, strontium hydroxyapatite.

Fig. 4

SEM micrographs at 5,000 × and EDXS analysis of (A) Ba-HAp, (B) Sr-HAp, and (C) Ca-HAp powders. Ba-HAp, barium hydroxyapatite; Ca-HAp, calcium hydroxyapatite; Sr-HAp, strontium hydroxyapatite.
SEM micrographs at 5,000 × and EDXS analysis of (A) Ba-HAp, (B) Sr-HAp, and (C) Ca-HAp powders. Ba-HAp, barium hydroxyapatite; Ca-HAp, calcium hydroxyapatite; Sr-HAp, strontium hydroxyapatite.

Fig. 5

FTIR spectrum of (A) Ba-HAp, (B) Sr-HAp, and (C) Ca-HAp powders. Ba-HAp, barium hydroxyapatite; Ca-HAp, calcium hydroxyapatite; Sr-HAp, strontium hydroxyapatite.
FTIR spectrum of (A) Ba-HAp, (B) Sr-HAp, and (C) Ca-HAp powders. Ba-HAp, barium hydroxyapatite; Ca-HAp, calcium hydroxyapatite; Sr-HAp, strontium hydroxyapatite.

Textural characteristics of synthesized alkaline-earth hydroxyapatite materials and Co2+ ion adsorption capacities in percentage_

Sample SBET (m2 g−1)a Vt (cm3 g−1)b dp (nm)c Co2+ ion adsorption capacity (%)
Ba-HAp 0.5216 0.0011 8.9231 6.03 ± 0.39
Sr-HAp 1.3874 0.0057 16.5310 17.46 ± 0.79
Ca-HAp 59.7000 0.1120 7.5046 56.84 ± 1.08
Język:
Angielski
Częstotliwość wydawania:
4 razy w roku
Dziedziny czasopisma:
Nauka o materiałach, Nauka o materiałach, inne, Nanomateriały, Funkcjonalne i inteligentne materiały, Charakterystyka i właściwości materiałów
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