期刊
SMALL
卷 19, 期 2, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.202205341
关键词
chloramphenicol; microwaves; single-atom catalysis; soil toxicity; soil remediation
Atomically dispersed Fe on three-dimensional N-doped carbon supports shows promise as a catalyst for microwave remediation of soil contaminated by Chloramphenicol (CAP). Due to the synergistic effect of microwave hot spots and reactive oxygen species, the catalyst can rapidly and effectively remove CAP from the soil.
Chloramphenicol (CAP) has long been used extensively in agriculture and is severely toxic to the biological environment. Microwave catalysis appears a promising method for soil remediation due to its fast and effective heat transfer, but it is challenging to prepare catalysts with good electromagnetic wave absorption and robust catalytic activity. In this study, atomically dispersed Fe on three-dimensional N-doped carbon supports (3D Fe-NC) is firstly used for microwave remediation of soil. Thanks to the synergistic effect of microwave hot spots and reactive oxygen species (center dot OH, center dot O-2(-)), 3D Fe-NC can completely remove 99.9% of CAP in 5 min. The removal rate constant is nearly twice that of commercial activated carbon. Significantly, the germination rate of lettuce seeds in microwave-repaired soil contaminated by CAP reaches 70%. This work demonstrates the application of Fe single-atom catalyst in microwave remediation of contaminated soil, providing a novel insight for agricultural soil remediation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据