吸附
磁性纳米粒子
磁选
朗缪尔吸附模型
纳米花
尿
水溶液
色谱法
化学
吸附
朗缪尔
化学工程
材料科学
核化学
纳米颗粒
纳米技术
冶金
有机化学
纳米结构
生物化学
工程类
作者
Linglu Gao,Qing He,Jinfeng Xing,Zhiqiang Ge
出处
期刊:Chemosphere
[Elsevier]
日期:2020-01-01
卷期号:238: 124690-124690
被引量:18
标识
DOI:10.1016/j.chemosphere.2019.124690
摘要
Doxorubicin (DOX) originated from users’ urine has been an emerging environmental pollutant due to its significant genotoxicity to mankind. Thus, urine source separation is a potential strategy to isolate DOX at a higher concentration and reduce the burden of downstream wastewater treatment. To develop highly efficient, easy separation and retrievable materials for individual patient to conveniently remove DOX from own urine, magnetic Cu3(PO4)2 nanoflowers were prepared through anchoring amino-functionalized magnetic nanoparticles on the Cu3(PO4)2 nanoflowers. Characterizations revealed the magnetic nanoflowers were spherical in shape with a mean size of 15 μm, and porous and hierarchical in structure. Magnetic nanoparticles located the surface of petals. Multibatch experiments were performed to assess the removal performance of DOX from aqueous solution. The magnetic nanoflowers exhibited excellent removal efficiency of DOX under weakly alkaline condition at ambient temperature. Linear and non-linear analyses were carried out to compare the best fitting kinetics and isotherms. Sorption kinetic data best fitted the pseudo-second order model. The Freundlich isotherm explained equilibrium sorption data with R2 = 0.993 higher than that for the Langmuir isotherm. When the pH of synthetic urine was adjusted to weakly alkaline (pH 8.0–9.0), over 95% of DOX (20 mg L−1) was removed by a little of magnetic nanoflowers (50 mg L−1) within 5 min. Meanwhile, the magnetic nanoflowers could be easily separated and recovered from the synthetic urine by a magnet. So, for individual urine source separation strategy, the magnetic nanoflower seems to be an efficient, convenient and inexpensive approach to remove DOX from human urine.
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