NDLI: Fluorescence quenchometric method for determination of ferric ion using boron-doped carbon dots

Content Provider	Springer Nature Link
Author	Wang, Fengxiang Hao, Qingli Zhang, Yuehua Xu, Yujuan Lei, Wu
Copyright Year	2015
Abstract	We report on the hydrothermal synthesis of boron-doped carbon dots (B-CDs) starting from glucose and boric acid. Doping of the CDs with boron was confirmed by Fourier transform infrared and X-ray photoelectron spectroscopy. The B-CDs have an average diameter of about 4 nm and display blue fluorescence which is dynamically quenched by Fe(III) ions. This finding was exploited to design a method for the determination of Fe(III) in water. The relative fluorescence intensity at 359 nm in the presence and of absence ions is inversely proportional to the concentration of Fe(III) ions, and a Stern-Volmer calibration plot is linear in the concentration range of 0–16 μM, with a 242 nM detection limit. The assay is sensitive, robust and selective. Graphical Abstract The stable blue fluorescent boron-doped carbon dots (B-CDs) were obtained by hydrothermal method. The fluorescence of B-CDs was effectively quenched by Fe(III). The B-CDs probe was able to discriminate Fe(III) from other metal ions. The probe shows high sensitivity to Fe(III) ions with low limit of detection.
Starting Page	273
Ending Page	279
Page Count	7
File Format	PDF
ISSN	00263672
Journal	Microchimica Acta
Volume Number	183
Issue Number	1
e-ISSN	14365073
Language	English
Publisher	Springer Vienna
Publisher Date	2015-09-23
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Quenching Stern-Volmer plot Heteroatom doping Fourier transform infrared spectroscopy X-ray photoelectron spectroscopy Transmission electron microscopy Nanochemistry Nanotechnology Characterization and Evaluation of Materials Analytical Chemistry Microengineering
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry

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