Liquid crystalline multilayer graphene quantum dots with hackelite structures: Characterisation and application for sensing nitrophenols
| Autor: | Harnish Soni, Padmaja Pamidimukkala |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
02 engineering and technology 010402 general chemistry Diethylene triamine 01 natural sciences law.invention symbols.namesake law Microscopy Materials Chemistry Electrical and Electronic Engineering Instrumentation Detection limit Liquid crystalline Graphene Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics Fluorescence 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Chemical engineering Quantum dot symbols 0210 nano-technology Raman spectroscopy |
| Zdroj: | Sensors and Actuators B: Chemical. 268:100-107 |
| ISSN: | 0925-4005 |
| Popis: | In this work we report the unique formation of twisted multilayered liquid crystalline graphene quantum dots (GQDs) from Diethylene triamine pentaacetic acid. The unique nature was confirmed through Raman spectroscopy and polarisation microscopic techniques. The presence of haeckelite structures was also seen during the assembly of the layers when the formed GQDs were heated and cooled on the hot stage of Polarising Microscopy. The GQDs exhibited blue coloured fluorescence under UV-light. The GQDs were used for the sensing of 4-Nitrophenol, 2,4-Dinitrophenol and 2,4,6-Trinitrophenol with detection limits 0.154, 0.430 and 0.093 μM respectively and were applied to real water samples. |
| Databáze: | OpenAIRE |
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