Zhao, Long, Zhou, Wei, Wen, Ming, Wu, Qingsheng, Li, Weiying, Fu, Yong Qing, Zhu, Quanjing, Chen, Sheng and Ran, Jiaqi (2023) Trifunctional Cu-Mesh/Cu2O@FeO-nanoarrays for highly efficient degradation of antibiotic, inactivation of antibiotic-resistant bacteria and damage of antibiotics resistance genes. Energy and Environmental Materials, 6 (1). e12299. ISSN 2575-0348
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Abstract
Trifunctional Cu-mesh/Cu2O@FeO-nanoarrays heterostructure is designed and fabricated by integrating Cu2O@FeO-nanoarrays onto Cu-mesh (CM) via an in situ growth and phase-transformation process. It is successfully applied to efficiently mitigate the antibiotic pollution, including degradation of antibiotics, inactivation of antibiotic-resistant bacteria (ARB) and damage of antibiotics resistance genes (ARGs). Under visible-light irradiation, CM/Cu2O@FeO-nanoarrays exhibits a superior degradation efficiency on antibiotics (e.g., up to 99% in 25 min for tetracycline hydrochloride, TC), due to the generated reactive oxygen species (ROS), especially the dominant ·O2−. It can fully inactivate E. coli (HB101) with initial number of ~108 CFU·mL-1 in 10 min, which is mainly attributed to the synergistic effects of 1D nanostructure, dissolved metal ions and generated ROS. Meanwhile it is able to damage ARGs after 180 min of photodegradation, including tetA (vs. TC) of 3.3 log10, aphA (vs. kanamycin sulfate, KAN) of 3.4 log10, and tnpA (vs. ampicillin, AMP) of 4.4 log10, respectively. This work explores a green way for treating antibiotic pollution under visible-light.
| Item Type: | Article |
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| Additional Information: | Funding Information: This work was financially supported by the National Natural Science Foundation of China (NSFC Nos: 22171212, 21771140, 51771138, 51979194), International Corporation Project of Shanghai Committee of Science and Technology by China (No. 21160710300), and International Exchange Grant (IEC/NSFC/201078) through Royal Society UK and NSFC. We also thank the research on water quality stability characteristics and countermeasures of the Fuzhou Water Supply System (Project No. 20203000) from Fuzhou Water Group Co. Ltd. |
| Uncontrolled Keywords: | Cu-Mesh/Cu2O@FeO-nanoarrays, antibiotic, antibiotic resistant bacteria, antibiotic resistance genes, photocatalytic degradation |
| Subjects: | B900 Others in Subjects allied to Medicine H600 Electronic and Electrical Engineering H800 Chemical, Process and Energy Engineering |
| Department: | Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering |
| Depositing User: | Rachel Branson |
| Date Deposited: | 27 Sep 2021 10:59 |
| Last Modified: | 27 Jan 2023 15:30 |
| URI: | https://nrl.northumbria.ac.uk/id/eprint/47358 |
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