Preparation and characterization of magnetic covalent organic framework and its application for efficient adsorption of Benzo[a]pyrene

被引：9
作者：
Pang, Yue-Hong [1 ]
Yang, Nian-Ci [1 ]
Qiao, Jin-Yu [1 ]
Shen, Xiao-Fang [1 ]
Huang, Yu-Ying [1 ]
机构：
[1] Jiangnan Univ, Sch Food Sci & Technol, State Key Lab Food Sci & Technol, Wuxi 214122, Jiangsu, Peoples R China
来源：
JOURNAL OF POROUS MATERIALS | 2022年 / 29卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Covalent organic framework; Co-precipitation; Magnetic adsorbent; Benzo[a]pyrene; Adsorption; POLYCYCLIC AROMATIC-HYDROCARBONS; SOLID-PHASE EXTRACTION; REMOVAL; PAHS; CONSTRUCTION; SURFACE; WATER; BENZO(A)PYRENE; NANOPARTICLES; POLLUTION;
D O I：
10.1007/s10934-021-01151-8
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Benzo[a]pyrene (BaP), one of the polycyclic aromatic hydrocarbons with potential carcinogenic, mutagenic and teratogenic toxicity, have been widely concerned. Herein, we report a simple and rapid co-precipitation method for the synthesis of magnetic covalent organic framework (Fe3O4/COF-DQTp) adsorbent for BaP removal. The magnetized COF-DQTp was characterized by fourier transform infrared, X-ray diffractometer, Brunauer-Emmett-Teller, vibrating sample magnetometer, transmission electron microscopy, high angle annular dark field scanning transmission electron microscopy image and energy-dispersive X-ray spectroscopy elemental mapping. Under the optimized adsorption conditions, the adsorption efficiency was as high as 99% and the maximum adsorption capacity is 19 mg/g in 10 min. The adsorption kinetics shows that adsorption of BaP onto Fe3O4/COF-DQTp follow pseudo-second order kinetic model. Moreover, the prepared Fe3O4/COF-DQTp has good reusability and is a potential material for the adsorption of BaP.
引用
收藏
页码：169 / 179
页数：11
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