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Electrogenerated chemiluminescence of black phosphorus nanosheets and its application in the detection of H2O2

Abstract

Black phosphorus nanosheets (BPNS) were synthesized from BP crystals through liquid exfoliation coupling with ultrasonic methods in aqueous condition. The morphology of the synthesized BPNS were characterized by TEM, XPS, AFM, Raman spectroscopy, UV-vis absorption and fluorescence spectroscopy, respectively. The obtained BPNS exhibited multilayers structure and lateral length is around 300 nm, and could emit fluorescence at 380 nm. BPNS modified glassy carbon electrode (BPNS/GCE) was fabricated, and strong anodic electrogenerated chemiluminescence (ECL) signal was obtained at the modified electrode with tripropylamine (TPrA) as coreactant in neutral condition. Hydrogen peroxide exhibited apparent inhibiting effect on the anodic ECL signal, and can be sensitive detected. In the range of 1-1000 nM, the decreased ECL intensities varied linear with the logarithm of H2O2 concentration, and the detection limit was calculated as 0.96 nM (3σ). The proposed modified electrode exhibited high sensitivity and good stability. The results revealed new character of BPNS in ECL investigation, and the potential application of 2D nanocomposites in ECL sensing field.

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Publication details

The article was received on 23 Sep 2018, accepted on 26 Nov 2018 and first published on 27 Nov 2018


Article type: Paper
DOI: 10.1039/C8AN01838C
Citation: Analyst, 2018, Accepted Manuscript
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    Electrogenerated chemiluminescence of black phosphorus nanosheets and its application in the detection of H2O2

    H. Ding, Z. tang, L. Zhang and Y. Dong, Analyst, 2018, Accepted Manuscript , DOI: 10.1039/C8AN01838C

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