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Preparation of nano‐structured pig bone hydroxyapatite for high‐efficiency adsorption of Pb 2+ from aqueous solution
Author(s) -
Zhou Yang,
Chang Di,
Chang Jiang
Publication year - 2017
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12749
Subject(s) - adsorption , aqueous solution , materials science , nano , langmuir adsorption model , mineralization (soil science) , chemical engineering , nanostructure , bone formation , nuclear chemistry , nanotechnology , composite material , chemistry , organic chemistry , nitrogen , engineering , medicine , endocrinology
The nano‐structured hydroxyapatite was prepared from pig bone materials by mineralization. The obtained nano‐structured bone was much better compared to the bone without nanostructure for removing Pb 2+ . The process was investigated under different conditions including contact time, initial Pb 2+ concentration, and pH . The pseudo‐second‐order kinetic model and Langmuir isotherm model were suitable for describing adsorption process. Moreover, the maximum adsorption capacities of nano‐structured bone and bone without nanostructure were 312.5 and 96.1 mg/g, respectively. Overall, the advantages of excellent adsorption capacity and simple mineralization together with low cost make nano‐structured bone an attractive material for removal of Pb 2+ from aqueous solution.