期刊
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
卷 11, 期 2, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2023.109400
关键词
Metal -organic framework; MOF derivatives; Laccase; Antibacterial material; Adsorption and degradation of pollutants
A three-dimensional flower-like Cu-MOF was successfully synthesized and its pyrolytic derivative Cu-N-C450 was obtained. The Cu-MOF exhibited laccase-like activity and excellent antibacterial ability to Escherichia coli. Additionally, the Cu-MOF served as an adsorbent to remove environmental pollutants and the Cu-N-C450 efficiently catalyzed the degradation of methylene blue.
Despite the rapid development of metal-organic framework materials (MOFs), the development of multifunc-tional MOFs and their application in catalytic and antibacterial fields is still of great significance. In this work, a three-dimensional flower-like Cu-MOF was successfully synthesized by a simple solvothermal method and its pyrolytic derivative Cu-N-C450 was obtained through pyrolysis of the Cu-MOF. For the first time, the Cu-MOF was preliminarily verified to have laccase-like activity and exhibited excellent antibacterial ability to Escherichia coli (E. coli) at a very low concentration of 10 mu g/mL without the addition of other substrate. Interestingly, we found the re-assembly of the micro-sized Cu-MOF to generate larger sized flower-like structures which was not common in the self-assembled phenomenon. We found the collision and centrifugation induced external force interaction might be the main factor. In addition, the Cu-MOF was also be used as adsorbent to remove environmental pollutants, such as methylene blue, and the Cu-N-C450 can rapidly catalyze the degradation of methylene blue with a high efficiency to 96.7%. This work offers a multifunctional MOFs material and promotes the exploration of extending application of the MOFs.
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