The effect of solvent polarity on emission properties of carbon dots and their uses in colorimetric sensors for water and humidity
Source abstract
Abstract
Abstract Carbon dots have emerged as promising nanomaterials because of their outstanding properties. The issue is to obtain multicolor emissions of carbon dots. Carbon dots from aliphatic acids and aromatic amines have successfully been synthesized, and their emission properties are controlled easily by solvents. This study helps deepen our understanding of the solvent-dependent behavior of nitrogen-doped carbon dots, especially their solvent polarity effects. The physical, chemical, and optical properties of carbon dots were analyzed, and the possibility of their use for detecting water in organic solvents and as paper-based humidity sensors was demonstrated.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Carbon and Quantum Dots Applications · Nanocluster Synthesis and Applications · Advanced Nanomaterials in Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (44)
Show source-provided references
1. Carbon quantum dots and their applications10.1039/C4CS00269E ↗
2. Carbon quantum dots: synthesis, properties and applications10.1039/C4TC00988F ↗
3. Preparation of fluorescent carbon dots and their interaction with human-transferrin (hTf)10.1016/j.materresbull.2017.07.045 ↗
4. Green synthesis of N, S co-doped carbon quantum dots from triflic acid treated palm shell waste and their application in nitrophenol sensing10.1016/j.materresbull.2018.08.033 ↗
5. The photoluminescence mechanism in carbon dots (graphene quantum dots, carbon nanodots, and polymer dots): current state and future perspective10.1007/s12274-014-0644-3 ↗
6. Recent advance in red-emissive carbon dots and their photoluminescent mechanisms10.1016/j.mtchem.2018.06.004 ↗
7. Long-wavelength, multicolor, and white-light emitting carbon-based dots: achievements made, challenges remaining, and applications10.1016/j.carbon.2017.08.072 ↗
8. Carbon dots: materials, synthesis, properties and approaches to long-wavelength and multicolor emission10.1039/C7TB00363C ↗
9. Red, green, and blue luminescence by carbon dots: full-color emission tuning and multicolor cellular imaging10.1002/anie.201501193 ↗
10. Excitation wavelength independent visible color emission of carbon dots10.1039/C6NR09200D ↗
11. Solvatochromism of bright carbon dots with tunable long-wavelength emission from green to red and their application as solid-state materials for warm WLEDs10.1039/C7RA07736J ↗
12. A novel mechanism for red emission carbon dots: hydrogen bond dominated molecular states emission10.1039/C7NR03570E ↗
13. Solvent-dependent carbon dots and their applications in the detection of water in organic solvents10.1039/C8TC02184H ↗
14. Fluorescent and colorimetric sensors for the detection of humidity or water content10.1039/C5CS00494B ↗
15. Nanomaterials for luminescent detection of water and humidity10.1039/C8AN01726C ↗
16. Imidazole derivative-functionalized carbon dots: using as a fluorescent probe for detecting water and imaging of live cells10.1039/C5DT00128E ↗
17. Facile synthesis of carbon nanodots with surface state-modulated fluorescence for highly sensitive and real-time detection of water in organic solvents10.1016/j.aca.2018.06.003 ↗
18. A sensitive fluorescent sensor for the detection of trace water in organic solvents based on carbon quantum dots with yellow fluorescence10.1039/C8RA06732E ↗
19. Humidity fixed points of binary saturated aqueous solutions10.6028/jres.081A.011 ↗
20. Saturated salt solutions for static control of relative humidity between 5° and 40 °C10.1021/ac60166a055 ↗
21. Multicolour nitrogen-doped carbon dots: tunable photoluminescence and sandwich fluorescent glass-based light-emitting diodes10.1039/C7NR05363K ↗
22. Focusing on luminescent graphene quantum dots: current status and future perspectives10.1039/c3nr33849e ↗
23. Simple aqueous solution route to luminescent carbogenic dots from carbohydrates10.1021/cm901593y ↗
24. Carbon-dot-aerogel sensor for aromatic volatile organic compounds10.1016/j.snb.2016.10.124 ↗
25. Simultaneous determination of dihydroxybenzene and phenylenediamine positional isomers using capillary zone electrophoresis coupled with amperometric detection10.1002/jssc.200900120 ↗
26. High-yield and high-solubility nitrogen-doped carbon dots: formation, fluorescence mechanism and imaging application10.1039/C3RA45762A ↗
27. Determination of protein secondary structure by fourier transform infrared spectroscopy: a critical assessment10.1021/bi00053a001 ↗
28. the role of water in protein’s behavior: the two dynamical crossovers studied by NMR and FTIR techniques10.1016/j.csbj.2014.11.007 ↗
29. Pyromellitic acid-derived highly fluorescent N-doped carbon dots for the sensitive and selective determination of 4-nitrophenol10.1016/j.dyepig.2019.02.029 ↗
30. Formation mechanism and optimization of highly luminescent N-doped graphene quantum dots10.1038/srep05294 ↗
31. Supramolecular structure of precipitated nanosize b-carotene particles10.1002/(SICI)1521-3773(19990802)38:15<2188::AID-ANIE2188>3.0.CO;2-# ↗
32. Nanosized carbon particles from natural gas soot10.1021/cm900709w ↗
33. A biocompatible fluorescent ink based on Water-soluble luminescent carbon nanodots10.1002/anie.201206791 ↗
34. Spectral characteristics of phenylenediamines and their various protonated species10.1246/bcsj.60.4409 ↗
35. Molecular origin and self-assembly of fluorescent carbon nanodots in polar solvents10.1021/acs.jpclett.7b00170 ↗
36. Solvatochromic dyes as solvent polarity indicators10.1021/cr00032a005 ↗
37. Solvatochromism in highly luminescent environmental friendly carbon quantum dots for sensing applications: conversion of bio-waste into bio-asset10.1016/j.saa.2017.10.054 ↗
38. Methods for the determination of limit of detection and limit of quantitation of the analytical methods
39. A new humidity sensor based upon graphene quantum dots prepared via carbonization of citric acid10.1016/j.snb.2015.08.122 ↗
40. Electron-tunneling modulation in percolating network of graphene quantum dots: fabrication, henomenological understanding, and humidity/pressure sensing applications10.1021/nl4003443 ↗
41. Electrical and humidity-sensing properties of reduced graphene oxide thin film fabricated by layer-by-layer with covalent anchoring on flexible substrate10.1016/j.snb.2014.04.035 ↗
42. New fluorescent metal-ion detection using a paper-based sensor strip containing tethered rhodamine carbon nanodots10.1021/acsami.5b04724 ↗
43. Solvatochromic fluorescent carbon dots as optic noses for sensing volatile organic compounds10.1039/C6RA16055G ↗
44. Highly sensitive and selective paper sensor based on carbon quantum dots for visual detection of TNT residues in groundwater10.1016/j.snb.2016.12.079 ↗