NDLI: Synthesis of hydroxyapatite nanoparticles for the removal of Pb(II) and Cd(II) from industrial wastewaters

Content Provider	Springer Nature Link
Author	Foroughi, Mohammad Reza Zarei, Moien
Copyright Year	2013
Abstract	One of the materials for the treatment and removal of heavy metals from industrial wastewater are hydroxyapatite (HA) nanoparticles, which were examined in this research. The aim of this study was to separate and remove these poisonous substances from industrial wastewaters. To this end, HA powder was synthesized with the sol–gel method in nanometric dimensions, and hydrated calcium nitrate and triethylphosphite (P(OEt)$_{3}$) were used as precursors in ethanol. Structural changes, powder morphology, and the shape of granules were assessed by scanning electron microscope, transmission electron microscope, X-ray diffraction, and Fourier transform infrared spectrometry. In addition, solutions containing lead and cadmium, entitled “industrial wastewater”, were produced in the laboratory. The surface area and particle size of HA powders prepared by chemical precipitation were also determined by BET and a particle size analyzer, respectively. For this experiment, HA nanoparticles were added to the solution and mixed under certain conditions and at appropriate times. The results of this study were evaluated before and after treatment by Atomic Absorption Spectrophotometry. After the addition of HA, Cd$^{2+}$, and Pb$^{2+}$ ion concentrations of the solution decreased to 507 ppm and less than 2 ppm, respectively.
Starting Page	4009
Ending Page	4019
Page Count	11
File Format	PDF
ISSN	09226168
Journal	Research on Chemical Intermediates
Volume Number	41
Issue Number	6
e-ISSN	15685675
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-12-18
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hydroxyapatite Nanoparticle Industrial wastewater Heavy metals Lead Cadmium Catalysis Physical Chemistry Inorganic Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry

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