| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Algarra, M.
Universidad Publica de Navarra
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Synergistic Enhancement of Targeted Wound Healing by Near-Infrared Photodynamic Therapy and Silver Metal–Organic Frameworks Combined with S- or N-Doped Carbon Dotscitations
- 2023Carbon Dots–TiO<sub>2</sub> Nanocomposites for the Enhanced Visible‐Light Driven Photodegradation of Methylene Bluecitations
- 2022Investigation of the role of pH and the stoichiometry of the N-dopant in the luminescence, composition and synthesis yield of carbon dotscitations
- 2017The Application of Functionalized Pillared Porous Phosphate Heterostructures for the Removal of Textile Dyes from Wastewatercitations
- 2016Characterization of cellulose membranes modified with luminescent silicon quantum dots nanoparticlescitations
- 2015ZnS:Mn nanoparticles functionalized by PAMAM-OH dendrimer based fluorescence ratiometric probe for cadmiumcitations
- 2014Fingerprint detection and using intercalated CdSe nanoparticles on non-porous surfacescitations
- 2013Solid luminescent CdSe-thiolated porous phosphate heterostructures. Application in fingermark detection in different surfacescitations
- 2013Inclusion of thiol DAB dendrimer/CdSe quantum dots based in a membrane structure: Surface and bulk membrane modificationcitations
- 2013Coal Rank Increase and Aerial Oxidation by a Combination of Fourier Transform Infrared Spectroscopy with Multivariate Analysiscitations
- 2012Thiolated DAB dendrimer/ZnSe nanoparticles for C-reactive protein recognition in human serumcitations
- 2012Thiolated DAB dendrimers and CdSe quantum dots nanocomposites for Cd(II) or Pb(II) sensingcitations
- 2011CdS nanocomposites assembled in porous phosphate heterostructures for fingerprint detectioncitations
- 2011Hybrid porous phosphate heterostructures as adsorbents of Hg(II) and Ni(II) from industrial sewagecitations
- 2011CdSe quantum dots capped PAMAM dendrimer nanocomposites for sensing nitroaromatic compoundscitations
- 2010Fluorescent Properties of a Hybrid Cadmium Sulfide-Dendrimer Nanocomposite and its Quenching with Nitromethanecitations
- 2010Porous phosphate heterostructures containing CdS quantum dots: assembly, characterization and photoluminescencecitations
- 2009Mercury(II) sensing based on the quenching of fluorescence of CdS-dendrimer nanocompositescitations
Places of action
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article
Investigation of the role of pH and the stoichiometry of the N-dopant in the luminescence, composition and synthesis yield of carbon dots
Abstract
Carbon dots (CDs) are carbon-based nanoparticles with very attractive luminescence features, which simplicity and flexibility of their fabrication can lead to an endless number of CDs with distinct properties and applications. High fluorescence quantum yields (QY(FL)) are generally a necessary feature for various applications of CDs. One commonly employed strategy to improve the fluorescence properties of CDs is heteroatom-doping using precursors containing desired heteroatoms (with focus on N-doping). In this work, we report the synthesis and systematic investigation of an array of N-doped CDs, obtained from the dry heating of solid mixtures of glucose and urea in different molar ratios with two main objectives: to study the role of stoichiometry in the optical properties and composition of CDs and to investigate the formation of possible alkaline-responsive nanoparticles and the potential of this procedure for obtaining CDs with higher synthesis yields. We have characterized the optical properties of this diverse array of glucose and urea-based CDs using both UV-Vis and fluorescence spectroscopies. In addition, we have also examined the CDs by using high-resolution transmission electron microscopy (HR-TEM) and X-Ray photoelectron (XPS) spectroscopy, as well as by assessing the thermal stability of the nanoparticles. We have found that this fabrication process generates two types of CDs, one readily soluble in water and other only soluble at basic pH. The latter was characterized by higher synthesis yields, and lower QY(FL) and thermal stability, when compared with those of the former. Furthermore, the stoichiometry of the N-dopant does not appear to be correlated with the QY(FL) of the obtained CDs. This study provides novel information that should be useful for the future rational development of CDs with higher QY(FL) and synthesis yields.