N,N-Dimethyl Formamide Regulating Fluorescence of MXene Quantum Dots for the Sensitive Determination of Fe3+

Nanoscale Research Letters

卷:16

Xiaohui Gao¹  Xiaochun Shao¹  Yejun Li¹  Lianwen Deng¹  Longlong Qin¹  Shengxiang Huang¹ 

[1] School of Physics and Electronics, Central South University;

关键词: MXene quantum dots;    Fluorescence;    Detection of Fe3+;   

DOI  :  10.1186/s11671-021-03617-9

来源: DOAJ

【 摘 要 】

Abstract Due to the wide use of iron in all kinds of areas, the design and construction of direct, fast, and highly sensitive sensor for Fe3+ are highly desirable and important. In the present work, a kind of fluorescent MXene quantum dots (MQDs) was synthesized via an intermittent ultrasound process using N,N-dimethyl formamide as solvent. The prepared MQDs were characterized via a combination of UV–Vis absorption, fluorescence spectra, X-ray photoelectron energy spectra, and Fourier-transform infrared spectroscopy. Based on the electrostatic-induced aggregation quenching mechanism, the fluorescent MQDs probes exhibited excellent sensing performance for the detection of Fe3+, with a sensitivity of 0.6377 mM−1 and the detection limit of 1.4 μM, superior to those reported in studies. The present MQDs-based probes demonstrate the potential promising applications as the sensing device of Fe3+.

【 授权许可】

Unknown