One-pot synthesis of N, S co-doped photoluminescent carbon quantum dots for Hg2+ ion detection
Source abstract
Abstract
Abstract N and S co-doped carbon quantum dots (N, S-CQDs) with a high fluorescence quantum yield (12.6%) were synthesized by a one-pot hydrothermal method. Results indicate that the N, S-CQDs have a small particle size and an amorphous structure, exhibiting unique surface states and excitation wavelength-independent fluorescent properties. Co-doping of N and S increases the electron-transfer rate and improves the coordination interaction between the N, S-CQDs and Hg2+ ions. The N, S-CQDs show a high sensitivity and selectivity in detecting Hg2+ ions even for a lake water sample. They are promising fluorescence probes for environmental monitoring.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Carbon and Quantum Dots Applications · Mercury impact and mitigation studies · Advanced biosensing and bioanalysis techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (45)
Show source-provided references
1. A nanoparticle autocatalytic sensor for Ag+ and Cu2+ ions in aqueous solution with high sensitivity and selectivity and its application in test paper [J]10.1021/ac2008465 ↗
2. Chromium in drinking water: Sources, metabolism, and cancer risks [J]10.1021/tx200251t ↗
3. Coating aqueous quantum dots with silica via reverse microemulsion method: Toward size-controllable and robust fluorescent nanoparticles [J]10.1021/cm070798m ↗
4. Development of a rhodamine–rhodanine-based fluorescent mercury sensor and its use to monitor real-time uptake and distribution of inorganic mercury in live zebrafish larvae [J]10.1021/ac404160v ↗
5. Tools and tactics for the optical detection of mercuric ion [J]10.1021/cr068000q ↗
6. Elemental mercury spills [J]10.1289/ehp.7048 ↗
7. Fluorescent and colorimetric sensors for detection of lead, cadmium, and mercury ions [J]10.1039/C1CS15245A ↗
8. A. Merkoci, recent trends in macro-, micro-, and nanomaterial-based tools and strategies for heavy-metal detection [J]10.1021/cr100383r ↗
9. A Rhodamine-based fluorescent and colorimetric chemodosimeter for the rapid detection of Hg2+ ions in aqueous media [J]10.1021/ja054855t ↗
10. Synthesis of carbon nanoparticles from waste rice husk used for the optical sensing of metal ions [J]10.1016/S1872-5805(16)60008-2 ↗
11. A ratiometric fluorescent chemosensor for Hg2+ based on FRET and its application in living cells [J]10.1016/j.snb.2014.03.032 ↗
12. Synthesis of a carbon-dot-based photoluminescent probe for selective and ultrasensitive detection of Hg2+ in water and living cells [J]10.1039/C4AN01386G ↗
13. Dual functional carbon dots derived from cornflour via a simple one-pot hydrothermal route [J]
14. On–off–on fluorescent carbon dot nanosensor for recognition of chromium(VI) and ascorbic acid based on the inner filter effect [J]10.1021/am4042355 ↗
15. Preparation of highly photoluminescent sulfur-doped carbon dots for Fe(III) detection [J]10.1039/C4TA05483K ↗
16. Nitrogen and sulfur co-doped carbon dots: A facile and green fluorescence probe for free chlorine [J]10.1016/j.snb.2015.05.021 ↗
17. Synthesis, mechanistic investigation, and application of photoluminescent sulfur and nitrogen co-doped carbon dots [J]10.1039/C5TC01912E ↗
18. Chemically tailoring coal to fluorescent carbon dots with tuned size and their capacity for Cu(II) eetection [J]10.1002/smll.201401328 ↗
19. Organic amine-grafted carbon quantum dots with tailored surface and enhanced photoluminescence properties [J]10.1016/j.carbon.2015.04.083 ↗
20. Nitrogen-doped carbon dots decorated on graphene: a novel all-carbon hybrid electrocatalyst for enhanced oxygen reduction reaction [J]10.1039/C4CC08735F ↗
21. Highly luminescent N, S-Co-doped carbon dots and their direct use as mercury(II) sensor [J]10.1016/j.aca.2015.07.051 ↗
22. Facile synthesis of biocompatible N, S-doped carbon dots for cell imaging and ion detecting [J]10.1039/C4RA13820A ↗
23. A green and facile approach for the synthesis of water soluble fluorescent carbon dots from banana juice [J]10.1039/c3ra00088e ↗
24. Graphene quantum dots derived from carbon fibers [J]10.1021/nl2038979 ↗
25. N, S co-doped carbon dots with orange luminescence synthesized through polymerization and carbonization reaction of amino acids [J]10.1016/j.apsusc.2015.03.029 ↗
26. One-step preparation of nitrogen-doped and surface-passivated carbon quantum dots with high quantum yield and excellent optical properties [J]10.1039/c3ra47577h ↗
27. Highly luminescent S, N co-doped graphene quantum dots with broad visible absorption bands for visible light photocatalysts [J]10.1039/c3nr04402e ↗
28. Synthesis of N, F and S co-doped graphene quantum dots [J]10.1039/C5NR02427G ↗
29. Bifunctional fluorescent carbon nanodots: green synthesis via soy milk and application as metal-free electrocatalysts for oxygen reduction [J]10.1039/c2cc33844k ↗
30. Dual functional carbonaceous nanodots exist in a cup of tea [J]10.1039/C4RA11152D ↗
31. Synthesis and surface photochemistry of graphitized carbon quantum dots [J]10.1016/j.jcis.2011.01.065 ↗
32. Carbon-based dots Co-doped with nitrogen and sulfur for high quantum yield and excitation-independent emission [J]10.1002/anie.201301114 ↗
33. Photoluminescence-tunable carbon nanodots: Surface-state energy-gap tuning [J]10.1002/adma.201405070 ↗
34. Carbon nanodots: synthesis, properties and applications [J]10.1039/c2jm34690g ↗
35. Printable temperature-responsive hybrid hydrogels with photoluminescent carbon nanodots [J]10.1088/0957-4484/25/5/055603 ↗
36. Water-based route to ligand-selective synthesis of ZnSe and Cd-doped ZnSe quantum dots with tunable ultraviolet A to blue photoluminescence [J]10.1021/la802294e ↗
37. Presence of amorphous carbon nanoparticles in food caramels [J]10.1038/srep00383 ↗
38. Water-based route to colloidal Mn-doped ZnSe and core/shell ZnSe/ZnS quantum dots [J]10.1021/ic101302q ↗
39. In situ building of a nanoprobe based on fluorescent carbon dots for methylmercury detection [J]10.1021/ac500517h ↗
40. Highly photoluminescent carbon dots for multicolor patterning, sensors, and bioimaging [J]10.1002/anie.201300519 ↗
41. Nitrogen-doped carbon quantum dots: Facile synthesis and application as a “turn-off” fluorescent probe for detection of Hg2+ ions [J]10.1016/j.bios.2013.11.074 ↗
42. Carbon nanodots as fluorescence probes for rapid, sensitive, and label-free detection of Hg2+ and biothiols in complex matrices [J]10.1039/C2CC16791C ↗
43. Ultrasensitive copper(II) detection using plasmon-enhanced and photo-brightened luminescence of CdSe quantum dots [J]10.1021/ac902985p ↗
44. Ultrasensitive Cu2+ sensing by near-infrared-emitting CdSeTe alloyed quantum dots [J]10.1016/j.talanta.2009.11.025 ↗
45. L-Cysteine-capped ZnS quantum dots based fluorescence sensor for Cu2+ ion [J]10.1016/j.snb.2008.09.028 ↗