Study on the adsorption performance of Fe(Ⅱ)-doped hydroxyapatite for Pb(Ⅱ) in aqueous solution
Study on the adsorption performance of Fe(Ⅱ)-doped hydroxyapatite for Pb(Ⅱ) in aqueous solution
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Li, Hui , Jiang, Qun , Jiang Simeng , Qu Jianhua , Zhao, Jiang and Zhang, Ying
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Tianjin: Journal of Agricultural Resources and Environment (JARE)
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Chinese
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Tianjin: Journal of Agricultural Resources and Environment (JARE)
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为了开发高效、经济、易得的重金属吸附剂，采用Fe（NO3） 2/Ca（NO3） 2/KH2PO4混合溶液在碱性条件下通过水合法制备掺Fe （Ⅱ）羟基磷灰石（Fe-HAp），以未改性羟基磷灰石（HAp）为对照材料，通过化学表征和批量吸附实验，探究Fe-HAp对水溶液中Pb（Ⅱ）的吸附性能与吸附机制。结果表明： Fe-HAp表面均匀地分布着大量纳米级颗粒，具有大量表面官能团，其比表面积为55.66 m2·g-1。Fe-HAp对Pb（Ⅱ）的最大吸附量（Qm）高达224.44 mg·g-1，是HAp的1.85倍，高于文献报道的代表性HAp类吸附剂。Fe-HAp对Pb（Ⅱ）吸附过程符合拟二级动力学模型和Langmuir吸附等温模型，且对Pb（Ⅱ）的吸附是自发的吸热过程。Fe-HAp对水溶液中Pb （Ⅱ...
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Full title
Study on the adsorption performance of Fe(Ⅱ)-doped hydroxyapatite for Pb(Ⅱ) in aqueous solution
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TN_cdi_proquest_journals_2807667788
Permalink
https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_journals_2807667788
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ISSN
2095-6819
E-ISSN
2095-6819
DOI
10.13254/j.jare.2021.0211
