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 3 2022
Accepted
27 5 2022
First published
30 5 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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