作者：Baoliang Zhang,* Junjie Chen, Jiqi Wang, Yu Huyan, Hepeng Zhang, and Qiuyu Zhang*
关键字：Magnetic hybrid particle, BSA, Flower-like, Adsorption, Copper ions
论文来源：期刊
具体来源：Journal of Chemical & Engineering DOI: 10.1021/acs.jced.8b00544
发表时间：2018年

In this work, a novel flowerlike BSA/Zn₃(PO₄)₂/Fe₃O₄ magnetic hybrid particle is successfully synthesized through a simple and rapid one-step strategy. The kernel is to introduce Fe₃O₄ nanoparticles in the process of the precipitation and coordination reaction of Zn²⁺ ions with phosphate radical and BSA. The average diameter of the magnetic hybrid particle is 2.3 μm. The specific surface area is 51.61 m²/g, the average pore size is 15.30 nm. The saturation magnetization is 9.5 emu·g^–1. The effects of the dosage of BSA and Fe₃O₄ nanoparticles on the properties of the magnetic hybrid particles are systematically investigated and optimized. The as-obtained BSA/Zn₃(PO₄)₂/Fe₃O₄ magnetic hybrid particle is used for the removal of Cu²⁺ ions. The results reveal that the magnetic hybrid particles present excellent adsorption performance on Cu²⁺ ionswith low concentration. The adsorption isotherms are fitted with the Langmuir equation. The maximum adsorption capacity is 12.56 mg·g^–1 at 306 K estimated by the Langmuir model. It can maintain more than 90% of its initial capacity after 10 times of successive reuse. Meanwhile, the magnetic property brings great convenience to the reuse of the absorbent.