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https://hdl.handle.net/2440/135736
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Type: | Journal article |
Title: | Atomic H* mediated fast decontamination of antibiotics by bubble-propelled magnetic iron-manganese oxides core-shell micromotors |
Author: | Ye, H. Wang, S. Wang, Y. Guo, P. Wang, L. Zhao, C. Chen, S. Chen, Y. Sun, H. Wang, S. Ma, X. |
Citation: | Applied Catalysis B: Environmental, 2022; 314:121484-1-121484-11 |
Publisher: | Elsevier BV |
Issue Date: | 2022 |
ISSN: | 0926-3373 1873-3883 |
Statement of Responsibility: | Heng Ye, Shengnan Wang, Yong Wang, Peiting Guo, Liying Wang, Chengke Zhao, Shuqing Chen, Yimai Chen, Hongqi Sun, Shaobin Wang, Xing Ma |
Abstract: | Wastewater remediation using micro/nanomotors is a hot topic, and MnO2 based materials have become fascinating alternatives to rare noble metal-based micro/nanomotors. Herein, we demonstrate facile and large- scale synthesis of Fe-MnO2 core-shell micromotors for antibiotic pollutant removal. Heat-treatment results in a phase transformation of MnO2 with formation of iron oxides and partially exfoliates the MnO2 nanoplate shell structure to promote mobility. The iron-manganese oxide micromotors exhibit an efficient removal of tetracy- cline antibiotics via a combination of catalytic degradation and adsorptive bubble separation. For the first time, atomic H* was found to participate in the micromotor-assisted degradation process, resulting in optimal Fenton reaction in neutral conditions with a good decontamination performance. Owing to the merits of abundance, magnetic recovery, facile fabrication, good motion, and environmental friendliness, as well as decontamination performance in a wide pH range, these core-shell micromotors demonstrate a promising candidate in practical wastewater treatment. |
Keywords: | MnO2 micromotors; Fenton reaction; Catalytic degradation; Adsorptive bubbles separation; Antibiotic removal |
Rights: | © 2022 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.apcatb.2022.121484 |
Grant ID: | http://purl.org/au-research/grants/arc/DP190103548 |
Published version: | http://dx.doi.org/10.1016/j.apcatb.2022.121484 |
Appears in Collections: | Chemical Engineering publications |
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