TY  - JOUR
AU  - Flores-Carrasco, Gregorio
AU  - Carrillo-Lopez, J.
AU  - Martinez-Martinez, R.
AU  - Espinosa-Torres, N. D.
AU  - Muñoz, Lidia
AU  - Milošević, Olivera
AU  - Rabanal, Maria Eugenia
PY  - 2016
UR  - https://dais.sanu.ac.rs/123456789/15968
AB  - Here, we report on the ZnO nanoparticles processing employing low-temperature (500 °C) ultrasonic spray pyrolysis (USP) method, using different Zn nitrate precursor solution concentrations (0.01, 0.1 and 1.0 M). Particle structural, morphological and luminescence characteristics were studied based on X-ray powder diffractometry, Fourier transform infrared spectroscopy, transmission electron microscopy (TEM/HRTEM), thermal analysis, UV–Vis diffuse reflectance spectra and photoluminescence measurements (PL). The generated so-called secondary particles have a hexagonal ZnO wurtzite-type crystalline structure with preferred orientation of (101) plane and quasi-spherical in shape. It was shown that such particle structural and morphological features are independent on the precursor solution concentrations used. All the PL spectra illustrate a strong green-yellow typical emission band exhibiting the corresponding redshift and variation of direct band gap from 3.22 to 3.12 eV with the increase in precursor concentration. The thermal analysis confirmed high thermal nanoparticles stability. The results proved that USP method successfully produces ZnO nanoparticles using neither dispersing agents nor post-heating treatments at high temperature, which allows rapid, continuous, single-step preparation, demonstrating a high potential for industrial applications.
PB  - Springer Berlin Heidelberg
T2  - Applied Physics A
T1  - Optical and morpho-structural properties of ZnO nanostructured particles synthesized at low temperature via air-assisted USP method
VL  - 122
DO  - 10.1007/s00339-016-9708-4
UR  - https://hdl.handle.net/21.15107/rcub_dais_15968
ER  - 

@article{
author = "Flores-Carrasco, Gregorio and Carrillo-Lopez, J. and Martinez-Martinez, R. and Espinosa-Torres, N. D. and Muñoz, Lidia and Milošević, Olivera and Rabanal, Maria Eugenia",
year = "2016",
abstract = "Here, we report on the ZnO nanoparticles processing employing low-temperature (500 °C) ultrasonic spray pyrolysis (USP) method, using different Zn nitrate precursor solution concentrations (0.01, 0.1 and 1.0 M). Particle structural, morphological and luminescence characteristics were studied based on X-ray powder diffractometry, Fourier transform infrared spectroscopy, transmission electron microscopy (TEM/HRTEM), thermal analysis, UV–Vis diffuse reflectance spectra and photoluminescence measurements (PL). The generated so-called secondary particles have a hexagonal ZnO wurtzite-type crystalline structure with preferred orientation of (101) plane and quasi-spherical in shape. It was shown that such particle structural and morphological features are independent on the precursor solution concentrations used. All the PL spectra illustrate a strong green-yellow typical emission band exhibiting the corresponding redshift and variation of direct band gap from 3.22 to 3.12 eV with the increase in precursor concentration. The thermal analysis confirmed high thermal nanoparticles stability. The results proved that USP method successfully produces ZnO nanoparticles using neither dispersing agents nor post-heating treatments at high temperature, which allows rapid, continuous, single-step preparation, demonstrating a high potential for industrial applications.",
publisher = "Springer Berlin Heidelberg",
journal = "Applied Physics A",
title = "Optical and morpho-structural properties of ZnO nanostructured particles synthesized at low temperature via air-assisted USP method",
volume = "122",
doi = "10.1007/s00339-016-9708-4",
url = "https://hdl.handle.net/21.15107/rcub_dais_15968"
}

Flores-Carrasco, G., Carrillo-Lopez, J., Martinez-Martinez, R., Espinosa-Torres, N. D., Muñoz, L., Milošević, O.,& Rabanal, M. E.. (2016). Optical and morpho-structural properties of ZnO nanostructured particles synthesized at low temperature via air-assisted USP method. in Applied Physics A
Springer Berlin Heidelberg., 122.
https://doi.org/10.1007/s00339-016-9708-4
https://hdl.handle.net/21.15107/rcub_dais_15968

Flores-Carrasco G, Carrillo-Lopez J, Martinez-Martinez R, Espinosa-Torres ND, Muñoz L, Milošević O, Rabanal ME. Optical and morpho-structural properties of ZnO nanostructured particles synthesized at low temperature via air-assisted USP method. in Applied Physics A. 2016;122.
doi:10.1007/s00339-016-9708-4
https://hdl.handle.net/21.15107/rcub_dais_15968 .

Flores-Carrasco, Gregorio, Carrillo-Lopez, J., Martinez-Martinez, R., Espinosa-Torres, N. D., Muñoz, Lidia, Milošević, Olivera, Rabanal, Maria Eugenia, "Optical and morpho-structural properties of ZnO nanostructured particles synthesized at low temperature via air-assisted USP method" in Applied Physics A, 122 (2016),
https://doi.org/10.1007/s00339-016-9708-4 .,
https://hdl.handle.net/21.15107/rcub_dais_15968 .

TY  - JOUR
AU  - Flores-Carrasco, Gregorio
AU  - Carrillo, J.
AU  - Luna, J. A.
AU  - Martínez, R.
AU  - Sierra-Fernández, Aránzazu
AU  - Milošević, Olivera
AU  - Rabanal, Maria Eugenia
PY  - 2014
UR  - https://dais.sanu.ac.rs/123456789/651
AB  - ZnO nanoparticles were synthesized in a horizontal three zones furnace at 500 °C using different zinc nitrate hexahydrate concentrations (0.01 M, 0.1 M, and 1.0 M) as a reactive precursor solution by air assisted Ultrasonic Spray Pyrolysis (USP) method. The physico-chemical, structural and functional properties of synthesized ZnO nanoparticles have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), high resolution transmission electron microscopy (HRTEM), Brunauer, Emmett and Teller (BET) method, UV–vis spectroscopy and photoluminescence (PL) measurements. Also, the photocatalytic activities of ZnO synthesized from different precursor concentrations were evaluated by removal rate of methyleneblue (MB) under UV irradiation (365 nm) at room temperature. SEM revealed two types of ZnO nanoparticles: a quasi-spherical, desert-rose like shape of the secondary particles, which does not change significantly with the increasing of precursor solution concentration as well as some content of the broken spheres. Increasing the precursor solution concentration leads to the increase in the average size of ZnO secondary particles from 248 ± 73 to 920 ± 190 nm, XRD reveals the similar tendency for the crystallite size which changes from 23 ± 4 to 55 ± 12 nm in the analyzed region. HRTEM implies the secondary particles are with hierarchical structure composed of primary nanosized subunits. The PL spectra imply a typical broad peak of wavelength centered in the visible region exhibiting the corresponding red-shift with the increase of solution concentration: 560, 583 and 586 nm for the 0.01, 0.1 and 1.0 M solution, respectively. The reported results showed the photocatalytic efficiency of ZnO nanoparticles was enhanced by increased precursor concentration.
PB  - Elsevier
T2  - Advanced Powder Technology
T1  - Synthesis, characterization and photocatalytic properties of nanostructured ZnO particles obtained by low temperature air-assisted-USP
SP  - 1435
EP  - 1441
VL  - 25
IS  - 5
DO  - 10.1016/j.apt.2014.02.004
UR  - https://hdl.handle.net/21.15107/rcub_dais_651
ER  - 

@article{
author = "Flores-Carrasco, Gregorio and Carrillo, J. and Luna, J. A. and Martínez, R. and Sierra-Fernández, Aránzazu and Milošević, Olivera and Rabanal, Maria Eugenia",
year = "2014",
abstract = "ZnO nanoparticles were synthesized in a horizontal three zones furnace at 500 °C using different zinc nitrate hexahydrate concentrations (0.01 M, 0.1 M, and 1.0 M) as a reactive precursor solution by air assisted Ultrasonic Spray Pyrolysis (USP) method. The physico-chemical, structural and functional properties of synthesized ZnO nanoparticles have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), high resolution transmission electron microscopy (HRTEM), Brunauer, Emmett and Teller (BET) method, UV–vis spectroscopy and photoluminescence (PL) measurements. Also, the photocatalytic activities of ZnO synthesized from different precursor concentrations were evaluated by removal rate of methyleneblue (MB) under UV irradiation (365 nm) at room temperature. SEM revealed two types of ZnO nanoparticles: a quasi-spherical, desert-rose like shape of the secondary particles, which does not change significantly with the increasing of precursor solution concentration as well as some content of the broken spheres. Increasing the precursor solution concentration leads to the increase in the average size of ZnO secondary particles from 248 ± 73 to 920 ± 190 nm, XRD reveals the similar tendency for the crystallite size which changes from 23 ± 4 to 55 ± 12 nm in the analyzed region. HRTEM implies the secondary particles are with hierarchical structure composed of primary nanosized subunits. The PL spectra imply a typical broad peak of wavelength centered in the visible region exhibiting the corresponding red-shift with the increase of solution concentration: 560, 583 and 586 nm for the 0.01, 0.1 and 1.0 M solution, respectively. The reported results showed the photocatalytic efficiency of ZnO nanoparticles was enhanced by increased precursor concentration.",
publisher = "Elsevier",
journal = "Advanced Powder Technology",
title = "Synthesis, characterization and photocatalytic properties of nanostructured ZnO particles obtained by low temperature air-assisted-USP",
pages = "1435-1441",
volume = "25",
number = "5",
doi = "10.1016/j.apt.2014.02.004",
url = "https://hdl.handle.net/21.15107/rcub_dais_651"
}

Flores-Carrasco, G., Carrillo, J., Luna, J. A., Martínez, R., Sierra-Fernández, A., Milošević, O.,& Rabanal, M. E.. (2014). Synthesis, characterization and photocatalytic properties of nanostructured ZnO particles obtained by low temperature air-assisted-USP. in Advanced Powder Technology
Elsevier., 25(5), 1435-1441.
https://doi.org/10.1016/j.apt.2014.02.004
https://hdl.handle.net/21.15107/rcub_dais_651

Flores-Carrasco G, Carrillo J, Luna JA, Martínez R, Sierra-Fernández A, Milošević O, Rabanal ME. Synthesis, characterization and photocatalytic properties of nanostructured ZnO particles obtained by low temperature air-assisted-USP. in Advanced Powder Technology. 2014;25(5):1435-1441.
doi:10.1016/j.apt.2014.02.004
https://hdl.handle.net/21.15107/rcub_dais_651 .

Flores-Carrasco, Gregorio, Carrillo, J., Luna, J. A., Martínez, R., Sierra-Fernández, Aránzazu, Milošević, Olivera, Rabanal, Maria Eugenia, "Synthesis, characterization and photocatalytic properties of nanostructured ZnO particles obtained by low temperature air-assisted-USP" in Advanced Powder Technology, 25, no. 5 (2014):1435-1441,
https://doi.org/10.1016/j.apt.2014.02.004 .,
https://hdl.handle.net/21.15107/rcub_dais_651 .