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A novel bio-template route to synthesize enzyme-immobilized MOF/LDH tubular magnetic micromotors and their application in water treatment

Environmental Science: Nano, ISSN: 2051-8161, Vol: 11, Issue: 3, Page: 1142-1156
2024
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Article Description

Micromotors capable of autonomous movement, sensitive detection and rapid removal of pollutants have attracted wide attention in environmental monitoring and water pollution remediation. In this paper, a ramie-derived hierarchical MgAl-LDH/MFZ@HRP magnetic microtube micromotor with peroxidase activity was proposed for simultaneous detection and removal of catechol from water. The MnO decomposition of HO produces O bubbles to realize the chemical drive of the micromotor with a speed of 128.33 ± 5.012 μm s (5% HO). Due to the high peroxidase activity and voluntary movement of MgAl-LDH/MFZ@HRP, catechol could be detected sensitively with a detection limit of 6.92 × 10 M. Moreover, catechol could be rapidly degraded by hydroxyl radical (˙OH) and superoxide anion (O˙) produced by Fenton reaction, and the degradation rate could reach 96%. This study provides a promising multifunctional micromotor for simultaneous determination and removal of organic pollutants from wastewater.

Bibliographic Details

Xiaohan Yang; Chenzhang Liu; Shuo Gao; Xiaolei Zhang; Ziwei Lan; Min Zuo; Jia Li

Royal Society of Chemistry (RSC)

Materials Science; Environmental Science

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