Preparation of nano‐structured pig bone hydroxyapatite for high‐efficiency adsorption of Pb2+ from aqueous solution |
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| Authors: | Yang Zhou Di Chang Jiang Chang |
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| Affiliation: | 1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, People's Republic of China;2. University of Chinese Academy of Sciences, Beijing, People's Republic of China;3. Shanghai Yan'an High School, Shanghai, People's Republic of China |
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| Abstract: | 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 Pb2+. The process was investigated under different conditions including contact time, initial Pb2+ 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 Pb2+ from aqueous solution. |
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| Keywords: | hydroxyapatite mineralization nano‐structured removal Pb |
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