吸附
沸石咪唑盐骨架
咪唑酯
可重用性
纳米颗粒
化学工程
四环素
磁性纳米粒子
纳米复合材料
废水
化学
材料科学
无机化学
金属有机骨架
纳米技术
有机化学
废物管理
计算机科学
工程类
程序设计语言
抗生素
软件
生物化学
作者
Daohu Sheng,Xintong Ying,Rui Li,Siyao Cheng,Cheng Zhang,Wei Dong,Xihao Pan
出处
期刊:Chemosphere
[Elsevier]
日期:2022-09-02
卷期号:308: 136249-136249
被引量:44
标识
DOI:10.1016/j.chemosphere.2022.136249
摘要
Magnetic nanoparticle materials which could be used to remove tetracycline were confined seriously due to their poor stability and unsatisfactory reusability. Here, we facilely prepared novel zeolitic imidazolate framework-8 (ZIF-8) functionalized magnetic nanoparticles (Fe3O4@PDA-ZIF-8) adsorbent utilizing polydopamine as a bond to establish a connection between zeolitic imidazolate framework-8 and Fe3O4, which could improve the stability of magnetic nanoparticles and enhance the tetracycline adsorption capacity simultaneously. The prepared nanocomposites were characterized and their TC adsorption abilities under various experiment conditions (contact time, TC initial concentration and pH values) were also investigated. Experimental results proved that the prepared adsorbent showed superior TC adsorption capacities (92.01 mg/g at pH = 7). Further, the adsorption mechanisms were comprehensively studied and the prepared adsorbent showed satisfactory stability and reusability during the cycle experiment. Altogether, our findings provided a feasible way to design and construct functional magnetic MOF materials for enhancing tetracycline adsorption from wastewater.
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