Details

Autor(en) / Beteiligte

• Kumari, B.
• Roy, S.

Titel

Facile Synthesis of Ionic Liquid Derived Fluorescent Carbon Dots for Sensitive and Selective Detection of Fe(III) Ion in Aqueous Media

Ist Teil von

• Russian journal of general chemistry, 2023-10, Vol.93 (10), p.2708-2716

Ort / Verlag

Moscow: Pleiades Publishing

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Recently, increasing levels of Fe 3+ in environmental water has become great potential threats for human health. Excess Fe 3+ concentration as well as deficiency of the ion has adverse effects in our body system, which demand the development of selective, sensitive and inexpensive sensing probe for Fe 3+ detection. This study focused on synthesis of a new photoluminescent carbon dots (CDs) via simple and straightforward hydrothermal method by using an imidazolium based ionic liquid, 1-ethyl-3-methylimidazolium acetate as starting material. The as-prepared nanoparticles were characterized through different spectroscopic and microscopic tools. The CDs exhibit a good fluorescence quantum yield (14.7%) and unique emission behavior. The fluorescence of CDs can be effectively and selectively quenched by ferric ions in aqueous media. Thus, these CDs can be applied as a probe towards selective and sensitive detection of Fe 3+ in aqueous media exhibiting a limit of detection of 0.09 μM. The CDs possesses a fluorescence lifetime of 5.62 ns.