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Highly Selective Detection of 2,4,6-trinitrophenol by Using Newly Developed Terbium-Doped Blue Carbon Dots

Highly Selective Detection of 2,4,6-trinitrophenol by Using Newly Developed Terbium-Doped Blue Carbon Dots

Bin Bin Chen, Ze Xi Liu, Hong Yan Zou, Cheng Zhi Huang

Analyst. 2016 Apr 25;141(9):2676-81.

PMID: 27109163

Abstract:

The detection of nitroaromatic explosives is of great importance owing to their strong explosive power and harmfulness in terms of the environment, homeland security and public safety. Herein, rare earth-doped carbon dots with multifunctional features were firstly prepared by simply keeping the mixture of terbium(iii) nitrate pentahydrate and citric acid at 190 °C for 30 min. The as-prepared terbium doped carbon dots (Tb-CDs), through a rapid and simple direct carbonization route, have a size of about 3 nm, and exhibit excitation wavelength dependent emission of blue fluorescence, are stable, and can be applied for the selective and colorimetric detection of 2,4,6-trinitrophenol (TNP) in the range of 500 nM-100 μM with a limit of detection of 200 nM based on the inner filtering effect (IFE) of the excitation and emission bands of Tb-CDs by TNP and the electron transfer (ET) from Tb-CDs to TNP, giving a precise and highly reproducible result for detecting complex water samples.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP57584277	Terbium(III) nitrate pentahydrate		57584-27-7	Price

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