NDLI: Removal of heavy metal ions by biogenic hydroxyapatite: Morphology influence and mechanism study

Content Provider	Springer Nature Link
Author	Wang, Dandan Guan, Xiaomei Huang, Fangzhi Li, Shikuo Shen, Yuhua Chen, Jun Long, Haibo
Copyright Year	2016
Abstract	Based on the synthesis of hydroxyapatite (HA) with different morphologies, such as nanorod-like, flower-like and sphere-like assembled HA nanorods, a new strategy has been developed for the removal of heavy metal ions such as Pb$^{2+}$, Cu$^{2+}$, Mn$^{2+}$, Zn$^{2+}$. The dependence of removal efficiency on the morphology and the suspended concentration of trapping agent, the removal time and selectivity were evaluated and discussed. The experimental results proved that the removal capacity of flower-like assembled HA nanorods (NAFL-HA) was the best, and the maximum removal ratio for Pb$^{2+}$ ion was 99.97%. The mechanism of Pb$^{2+}$ removal was studied in detail, noting that some metal ions were completely incorporated into hydroxyapatitie to produce Pb-HA. It reveals that the metal ions capture by HA is mainly controlled by sample surface adsorption and co-precipitation, which are directly controlled by sample morphology.
Starting Page	1557
Ending Page	1562
Page Count	6
File Format	PDF
ISSN	00360244
Journal	Russian Journal of Physical Chemistry
Volume Number	90
Issue Number	8
e-ISSN	1531863X
Language	English
Publisher	Pleiades Publishing
Publisher Date	2016-07-21
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	hydroxyapatite heavy metal ions removal mechanism morphology Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry

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