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A simple fluorescence sensor for the detection of nitrite (NO2) in real samples using water-dispersible graphite-like carbon nitride (w-g-C3N4) nanomaterials

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Abstract

A novel strategy was developed for the fluorescence detection of nitrite (NO2) in real samples. The method is based on the reaction of water-dispersible graphite-like carbon nitride (w-g-C3N4) with nitrite (NO2) in an acidic medium to form a new kind of weak fluorescence species. Under optimal conditions, the limit of detection (LOD) for nitrite (NO2) detection was determined to be 0.16 nM (S/N = 3), and the relative fluorescence intensity versus logarithm concentration of nitrite (NO2) showed good linearity in the range from 0 to 58.5 μM with R2 = 0.997. This probe displayed several appealing properties including low-cost, simplicity and convenience, high sensitivity, and excellent selectivity.

Graphical abstract: A simple fluorescence sensor for the detection of nitrite (NO2−) in real samples using water-dispersible graphite-like carbon nitride (w-g-C3N4) nanomaterials

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Publication details

The article was received on 30 Apr 2017, accepted on 12 Jun 2017 and first published on 12 Jun 2017


Article type: Paper
DOI: 10.1039/C7NJ01446E
Citation: New J. Chem., 2017, Advance Article
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    A simple fluorescence sensor for the detection of nitrite (NO2) in real samples using water-dispersible graphite-like carbon nitride (w-g-C3N4) nanomaterials

    J. Chen, Q. Ma, C. Wang, X. Hu, Y. Gao, H. Wang, D. Qin and X. Lu, New J. Chem., 2017, Advance Article , DOI: 10.1039/C7NJ01446E

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