共价键
黄曲霉毒素
吸附
热稳定性
化学
共价有机骨架
复合数
饮用水净化
化学稳定性
水处理
污染
核化学
化学工程
材料科学
有机化学
食品科学
工程类
生物
环境工程
生态学
环境科学
复合材料
作者
Jinhai Wu,Yu Qiu,Mingzhu Liu,Jin Wu,Zunquan Zhao,Jiamei Zhao,Hanle Li,Huijing Shen,Yuan Peng,Jialei Bai
摘要
Abstract BACKGROUND Aflatoxin B 1 (AFB 1 ) is the most toxic and harmful aflatoxin, and has good thermal stability. Research reveals that AFB 1 also exists in water, which is potentially harmful to human health. Therefore, it is urgent to remove AFB 1 from water. In this work, a novel magnetic covalent organic framework composite (Fe 3 O 4 @COFs) is synthesized. RESULTS The specific surface area is as high as 1293.32 m 2 g −1 . The adsorption capacity for AFB 1 is 420 μg mg −1 , which is six times or more that of other adsorbents. Fe 3 O 4 @COFs is employed for the adsorption and elimination of AFB 1 from water. The removal efficiency is above 90% and it can be reused at least eight times. In addition, Fe 3 O 4 @COFs has been successfully used to remove trace AFB 1 in actual water samples. CONCLUSIONS The synthesized Fe 3 O 4 @COFs has good thermal stability, fast adsorption and large adsorption capacity, and can be recycled many times. Fe 3 O 4 @COFs exhibits excellent performance for the removal of AFB 1 , and has exceptional promise for application in water purification. © 2022 Society of Chemical Industry (SCI).
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