Issue 27, 2022

Doxycycline detection and degradation in aqueous media via simultaneous synthesis of Fe-N@carbon dots and Fe3O4-carbon dot hybrid nanoparticles: a one arrow two hawk approach

Abstract

The overuse of antibiotics in recent years presents a huge challenge to society for their removal from the environment. The prolonged presence of antibiotics as environmental pollutants results in the emergence of drug-resistant bacteria faster than new antibiotics to treat diseases they cause. Therefore, a rapid, sensitive, and cost-effective method is urgently required to detect and degrade antibiotics. Given this, a novel strategy has been devised for synthesizing Fe-doped carbon dots (Fe-N@CDs) and iron oxide-carbon dot hybrid nanoparticles (Fe3O4-CDs) in a single step for doxycycline detection and its degradation. For the very first time, the formation of two simultaneous products, i.e., Fe-N@CDs (0 D fluorescent carbon dots) and Fe3O4-CDs (magnetic nanoparticles) in a single step hydrothermal carbonization process by using a sole iron salt (FeCl2) and carbon precursor (citric acid) in the presence of ethylenediamine is reported. The as prepared Fe-N@CDs selectively detect doxycycline with a limit of detection value of 66 ng mL−1 and in the linear range from 0 mg mL−1 to 50 mg mL−1, whereas the other formed products, i.e., Fe3O4-CDs, degrade doxycycline by 70.26% in just 5 min by applying shear force using simply a kitchen blender. The results demonstrated the suitability and application scope in food and environment safety.

Graphical abstract: Doxycycline detection and degradation in aqueous media via simultaneous synthesis of Fe-N@carbon dots and Fe3O4-carbon dot hybrid nanoparticles: a one arrow two hawk approach

Supplementary files

Article information

Article type
Paper
Submitted
04 mars 2022
Accepted
27 mai 2022
First published
30 mai 2022

J. Mater. Chem. B, 2022,10, 5251-5262

Doxycycline detection and degradation in aqueous media via simultaneous synthesis of Fe-N@carbon dots and Fe3O4-carbon dot hybrid nanoparticles: a one arrow two hawk approach

N. Kaur, P. Tiwari, Z. Abbas and S. M. Mobin, J. Mater. Chem. B, 2022, 10, 5251 DOI: 10.1039/D2TB00475E

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