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The eradication of bacteria and the degradation of organic pollutants in contaminated water hold paramount importance for both ecological systems and human health. Herein, we report the development of a bifunctional material, constructed from metal-organic frameworks (MOFs) and their derived metal/carbon composites, which demonstrates remarkable efficacy in disinfecting and degrading dyes and antibiotics. Notably, the synthesized Co-MOFs and their derived Co@C composites exhibit a progressive enhancement in antibacterial activity: (i) In comparison to 3D Co-MOF polyhedra, 2D Co-MOF nanosheets demonstrate superior efficacy in killing both E. coli and S. aureus. This enhanced antibacterial performance is attributed to the generation of a higher quantity of reactive oxygen species and the unique nanosheet structure. (ii) Following heat treatment of the 2D Co-MOFs, carbon-encapsulated cobalt nanoparticles (Co@C) are obtained. These nanoparticles further reduce the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values compared to the pristine 2D Co-MOFs. (iii) Additionally, the carbon layers impart exceptional photothermal properties to the materials, leading to a further enhancement in antibacterial efficacy. With irradiation with NIR for just 10 min, the bactericidal rates against E. coli and S. aureus can be as high as 97 % and 100 %, respectively. Furthermore, the cobalt nanoparticles within the carbon layers serve as catalysts for Fenton-like catalytic degradation of organic pollutants in the presence of peroxymonosulfate. Nearly 100 % of cationic Methylene Blue and anionic Congo Red, as well as 77 % of Enrofloxacin, can be degraded within 60 seconds.
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JOURNAL OF ALLOYS AND COMPOUNDS
ISSN: 0925-8388
Year: 2025
Volume: 1024
5 . 8 0 0
JCR@2023
CAS Journal Grade:2
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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