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Hierarchical Hydroxyapatite Microspheres Composed of Nanorods and Their Competitive Sorption Behavior for Heavy Metal Ions
Author(s) -
Zhu Ronghai,
Lai Xiaoyong,
Halpert Jonathan E.,
Yu Ranbo,
Wang Dan
Publication year - 2012
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201101038
Subject(s) - sorption , nanorod , chemistry , microsphere , precipitation , chemical engineering , adsorption , metal ions in aqueous solution , metal , morphology (biology) , nanotechnology , organic chemistry , materials science , physics , biology , meteorology , engineering , genetics
Hydroxyapatite (HAP) microspheres composed of nanorods have successfully been prepared by a facile co‐precipitation method without any template. We propose the formation mechanism of the microspheres to be a four‐step process on the basis of the evolution of their morphology as a function of reaction time. We investigate the competitive sorption of the HAP microspheres for Pb 2+ , Cu 2+ , Cd 2+ , Zn 2+ , and Ni 2+ to show that HAP microspheres are a highly selective adsorbent for Pb 2+ in wastewater.