Caue Ribeiro

Dr. Caue Ribeiro

Embrapa instrumentação
orcid

Research Focus & Metrics

Academic Career Length

26Years (2001-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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12 February 2010 in Cellulose
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Journal Article
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ETEliangela de Morais Teixeira
Eliangela de Morais Teixeira
ACAna Carolina Corrêa
Ana Carolina Corrêa
AMAlexandra Manzoli
Alexandra Manzoli
FLFabio Leite
Fabio Leite
Caue RibeiroCaue Ribeiro
Caue Ribeiro
Luiz Henrique Capparelli MattosoLuiz Henrique Capparelli Mattoso
Luiz Henrique Capparelli Mattoso

2 March 2004 in Applied Physics Letters
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Journal Article
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ELE. J. H. Lee
E. J. H. Lee
Caue RibeiroCaue Ribeiro
Caue Ribeiro
TGT. R. Giraldi
T. R. Giraldi
Elson LongoElson Longo
Elson Longo
ELE. R. Leite
E. R. Leite
JVJ. A. Varela
J. A. Varela
Nanocrystalline SnO2 quantum dots were synthesized at room temperature by hydrolysis reaction of SnCl2. The addition of tetrabutyl ammonium hydroxide and the use of hydrothermal treatment enabled one to obtain tin dioxide colloidal suspensions with mean particle radii ranging from 1.5 to 4.3 nm. The photoluminescent properties of the suspensions were studied. The particle size distribution was estimated by transmission electron microscopy. Assuming that the maximum intensity photon energy of the photoluminescence spectra is related to the band gap energy of the system, the size dependence of the band gap energies of the quantum-confined SnO2 particles was studied. This dependence was observed to agree very well with the weak confinement regime predicted by the effective mass model. This might be an indication that photoluminescence occurs as a result of a free exciton decay process.

1 January 2014 in Applied Catalysis B: Environment and Energy
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Journal Article
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OLOsmando F Lopes
Osmando F Lopes
EPElaine Cristina Paris
Elaine Cristina Paris
Caue RibeiroCaue Ribeiro
Caue Ribeiro

26 July 2013 in Journal of Agricultural and Food Chemistry
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Journal Article
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ABAdriel Bortolin
Adriel Bortolin
FAFauze Ahmad Aouada
Fauze Ahmad Aouada
Luiz Henrique Capparelli MattosoLuiz Henrique Capparelli Mattoso
Luiz Henrique Capparelli Mattoso
Caue RibeiroCaue Ribeiro
Caue Ribeiro

18 October 2005 in The Journal of Physical Chemistry B
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Journal Article
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ELEduardo J. H. Lee
Eduardo J. H. Lee
Caue RibeiroCaue Ribeiro
Caue Ribeiro
Elson LongoElson Longo
Elson Longo
ELEdson R. Leite
Edson R. Leite

13 April 2017 in Scientific Reports
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Journal Article
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AGAmanda S. Giroto
Amanda S. Giroto
GGGelton G. F. Guimarães
Gelton G. F. Guimarães
MFMilene Foschini
Milene Foschini
Caue RibeiroCaue Ribeiro
Caue Ribeiro
Developing efficient crop fertilization practices has become more and more important due to the ever-increasing global demand for food production. One approach to improving the efficiency of phosphate and urea fertilization is to improve their interaction through nanocomposites that are able to control the release of urea and P in the soil. Nanocomposites were produced from urea (Ur) or extruded thermoplastic starch/urea (TPSUr) blends as a matrix in which hydroxyapatite particles (Hap) were dispersed at ratios 50% and 20% Hap. Release tests and two incubation experiments were conducted in order to evaluate the role played by nanocomposites in controlling the availability of nitrogen and phosphate in the soil. Tests revealed an interaction between the fertilizer components and the morphological changes in the nanocomposites. TPSUr nanocomposites provided a controlled release of urea and increased the release of phosphorus from Hap in citric acid solution. The TPSUr nanocomposites also had lower NH3 volatilization compared to a control. The interaction resulting from dispersion of Hap within a urea matrix reduced the phosphorus adsorption and provided higher sustained P availability after 4 weeks of incubation in the soil.