Tuning Optical Properties of Nitrogen-Doped Carbon Dots Through Fluorescence Resonance Energy Transfer Using Rhodamine B for Ratiometric Sensing of Mercury ion

2021 ◽  
Author(s):  
Alagan Muthurasu ◽  
V GANESH
Keyword(s):  
Optical Properties ◽  
Energy Transfer ◽  
Rhodamine B ◽  
Carbon Dots ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Nitrogen Doped ◽  
Physical Chemical ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

Carbon dots (CDs) exhibiting fluorescence property are generally derived from carbonaceous materials and possessing ultra small size with various exciting physical, chemical and photo-properties that have been used in many...

A chemiluminescence resonance energy transfer for the determination of indolyl acetic acid using luminescent nitrogen-doped carbon dots as acceptors

2018 ◽  
Vol 42 (1) ◽  
pp. 388-394 ◽  
Author(s):  
Yan Liu ◽  
Suqin Han
Keyword(s):  
Acetic Acid ◽  
Energy Transfer ◽  
Carbon Dots ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Nitrogen Doped ◽  
Indolyl Acetic Acid ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

A CRET method was fabricated for the determination of IAA using Ce(iv)–Na2SO3 as the donor and N-CDs as the acceptor.

scholarly journals A Novel Ratiometric Probe Based on Nitrogen-Doped Carbon Dots and Rhodamine B Isothiocyanate for Detection of Fe3+in Aqueous Solution

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Lin Liu ◽  
Lu Chen ◽  
Jiangong Liang ◽  
Lingzhi Liu ◽  
Heyou Han
Keyword(s):  
Rhodamine B ◽  
Carbon Dots ◽  
Dynamic Range ◽  
Tap Water ◽  
Buffer Solution ◽  
Nitrogen Doped ◽  
Rhodamine B Isothiocyanate ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon ◽  
Ratiometric Probe

A ratiometric probe for determining ferric ions (Fe3+) was developed based on nitrogen-doped carbon dots (CDs) and rhodamine B isothiocyanate (RhB), which was then applied to selective detection of Fe3+in PB buffer solution, lake water, and tap water. In the sensing system, FePO4particles deposit on the surface of CDs, resulting in larger particles and surface passivation. The fluorescence (FL) intensity and the light scattering (LS) intensity of CDs can be gradually enhanced with the addition of Fe3+, while the FL intensity of RhB remains constant. The ratiometric light intensity of CDs LS and RhB FL was quantitatively in response to Fe3+concentrations in a dynamic range of 0.01–1.2 μM, with a detection limit as low as 6 nM. Other metal ions, such as Fe2+, Al3+, K+, Ca2+, and Co2+, had no significant interference on the determination of Fe3+. Compared with traditional probes based on single-signal probe for Fe3+detection, this dual-signal-based ratiometric probe exhibits a more reliable and stable response on target concentration and is characterized by easy operation in a simple fluorescence spectrophotometer.

Influence of thermal treatment conditions (solvothermal versus microwave) and solvent polarity on morphology and emission of phloroglucinol-based nitrogen-doped carbon dots

Nanoscale ◽  
2021 ◽  
Author(s):  
Pavel D. Khavlyuk ◽  
Evgenia A. Stepanidenko ◽  
Daniil P. Bondarenko ◽  
Denis V. Danilov ◽  
Aleksandra V. Koroleva ◽  
...  
Keyword(s):  
Optical Properties ◽  
Surface Modification ◽  
Thermal Treatment ◽  
Carbon Dots ◽  
Solvent Polarity ◽  
Nitrogen Doped ◽  
Treatment Conditions ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

Optical properties of the chemically synthesized carbon dots (CDs) can be widely tuned via doping and surface modification with heteroatoms such as nitrogen, which results in a range of potential...

scholarly journals Biobased Carbon Dots: From Fish Scales to Photocatalysis

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 524
Author(s):  
Carlotta Campalani ◽  
Elti Cattaruzza ◽  
Sandro Zorzi ◽  
Alberto Vomiero ◽  
Shujie You ◽  
...  
Keyword(s):  
Optical Properties ◽  
Photocatalytic Activity ◽  
Carbon Dots ◽  
Methyl Viologen ◽  
Fish Scales ◽  
Nitrogen Doped ◽  
New Class ◽  
The One ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

The synthesis, characterization and photoreduction ability of a new class of carbon dots made from fish scales is here described. Fish scales are a waste material that contains mainly chitin, one of the most abundant natural biopolymers, and collagen. These components make the scales rich, not only in carbon, hydrogen and oxygen, but also in nitrogen. These self-nitrogen-doped carbonaceous nanostructured photocatalyst were synthesized from fish scales by a hydrothermal method in the absence of any other reagents. The morphology, structure and optical properties of these materials were investigated. Their photocatalytic activity was compared with the one of conventional nitrogen-doped carbon dots made from citric acid and diethylenetriamine in the photoreduction reaction of methyl viologen.

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