Fluorometric Dual Sensing of Al<SUP>3+</SUP> and Fe<SUP>3+</SUP> Ions with Novel Green Synthesis Carbon Dot from <i>Ocimum Basilicum</i>

New eco-friendly carbon dot structures (CDs) were synthesized with hydrothermal method from ocimum basilicum in a single step. Structure, morphology and optical analyzes of these new CDs were performed with TEM, XRD, FTIR, XPS, UV-Vis. absorption and steady-state fluorescence measurements. It was determined that nano-sized CDs structures with high fluorescence properties were obtained by the analysis results. The sensor application of CDs was studied using various metal ions with different charges. The results showed that these ocimum basilicum based CDs were sensitive and selective only for Fe3+ and Al3+ ions. LOD values of Fe3+ and Al3+ ions were calculated as 0.12 mu M and 0.78 mu M, respectively. As a result of interference and response time studies, it was determined that CDs have a highly selective and rapid response for Fe3+ and Al3+ ions. It was observed that CDs have practical applicability with real sample tests. The results obtained showed that this new CDs exhibit both "turn-off " (for Fe3+ ions) and "turn-on " (for Al3+ ions) detection simultaneously.

Dergi

CHEMISTRYSELECT

Yıl

2022

Cilt

7

Sayı

47

ISSN

2365-6549

DOI

10.1002/slct.202203777

WoS UID

WOS:000899333500001