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Antibiotics Can Be Removed From Water With New Nanomaterial

Antibiotics Can Be Removed From Water With New Nanomaterial

Antibiotics Can Be Removed From Water With New Nanomaterial

Antibiotics Can Be Removed From Water With New Nanomaterial

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Antibiotics have been widely used as a veterinary medicine and as medication for humans. However, they have also become an emerging pollutant in water; environmental residues increase the resistance of bacteria. What's worse, resistance genes continuing to expand and evolve in the environment could even create "super bacteria".

Given this, a study team led by Prof. Kong Lingtao from the Institute of Intelligent Machines under Hefei Institutes of Physical Science has synthesized new Zr-MOFs nanomaterials successfully to remove antibiotics from water.

The researchers used a simple hydrothermal method to synthesize the Zr-MOFs (UiO-66-NH2) with excellent stability in water and applied them to the experimental study of removing norfloxacin (NOR) antibiotics in water.

The adsorption capacities of UiO-66-NH2 reached a maximum of 222.5 mg/g for NOR, which were considerably higher than that of most reported adsorbents.

At a concentration of 10 mg/L, the highest partition coefficient of 20.9 mg/g/μM was obtained, and the removal rate of NOR was as high as 91.6%, implying that UiO-66-NH2 offered considerable adsorption performance at a low concentration of NOR.

Finally, several credible adsorption mechanisms were proposed.


Fang et al. (2020). High-efficiency adsorption of norfloxacin using octahedral UIO-66-NH2 nanomaterials: Dynamics, thermodynamics, and mechanisms. Applied Surface Science. DOI: https://doi.org/10.1016/j.apsusc.2020.146226   

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