Green synthesis of fluorescent hydrophobic carbon quantum dots and their use for 2,4,6-trinitrophenol detection

Abstract

Fluorescent hydrophobic carbon dots are synthesized in a green way and used for determination of 2,4,6-trinitrophenol in a hydrophobic medium for the first time.

A porous β-cyclodextrin-based terpolymer fluorescence sensor for in situ trinitrophenol detection

“…[1][2][3] To address the environmental concerns related to the build-up and transport of nitrophenols, research activity has been directed toward the selective and sensitive detection of model compounds such as TNP and NB. Analytical detection and quantication methods such as X-ray dispersion, surfaceenhanced Raman spectroscopy 4 IR spectroscopy 5 and mass spectrometry 6 have been reported. However, considerations of analysis time and cost of such techniques have limited their application for eld studies.…”

“…By contrast, uorescence detection methods have gained increasing interest owing to their costeffectiveness, high sensitivity and their relatively facile operation. [6][7][8][9] Although ultra-high sensitivity toward nitroarene explosives are known, challenges remain concerning their rapid and selective detection with the use of conventional sensors in the eld. Fluorescence-based sensors have been developed for the selective and sensitive detection of model explosive materials that use various modalities of detection that include uorescent quantum dots, 10,11 uorescence immunoassays [12][13][14] and colorimetric visualization methods.…”

“…9,16,17 These systems are promising in light of the detection limit of nitroaromatic compounds that range between 6.5 nM to 100 nM. 6,7,9,11,12,14,17,18 While luminescent MOFs are known to provide good sensitivity and selectivity due to their porous nature and their favourable host-guest complexation behaviour, organic polymer-based luminescent materials have also gained recent attention. 19,20 Zhao et al 20 reported on conjugated polymers, poly(p-phenyleneethynylene)s (PPEs) and poly(p-phenylenebutadiynylene)s (PPDs) materials with unique detection of nitroarenes in solution and the solid state.…”

Polyurethane derivatives for highly sensitive and selective fluorescence detection of 2,4,6-trinitrophenol (TNP)

“…Among the various explosive detection techniques, such as gas chromatography mass spectroscopy (GC-MS), 7 surface enhanced Raman spectroscopy (SERS) 8 and electrochemical methods, 9 fluorescence sensing offers several advantages, such as high sensitivity, simplicity, rapid response time and low cost. [10][11][12][13][14] Some fluorescent chemosensors including MOFs, [15][16][17] quantum dots (QDs), 18,19 fluorescent polymers, [20][21][22] phosphorescent metal complexes, 23,24 and small molecule-based sensors 25,26 have been developed to detect nitro-aromatics. However, highly selective sensing of TNP compared with other nitro-aromatic explosives still remains a challenge, as they usually exhibit similar electron affinity.…”

Orange emissive carbon dots for colorimetric and fluorescent sensing of 2,4,6-trinitrophenol by fluorescence conversion

“…36 Compared with some single uorescent probe, the CNDs baseddual-readout probe exhibited much higher sensitivity in detection. [37][38][39] Thus, the developed CNDs could create a simple and convenient platform for visualized quantitative detection of TNP activity with desirable sensitivity and high selectivity.…”