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Nitrate-assisted photocatalytic efficiency of defective Eu-doped Pr(OH)(3) nanostructures

Askrabić, S.; Araujo, V. D.; Passacantando, M.; Bernardi, M. I. B.; Tomić, N.; Dojcinović, B.; Manojlović, Dragan; Čalija, Bojan; Miletić, M.; Dohcević-Mitrović, Z. D.

(Royal Soc Chemistry, Cambridge, 2017)

TY  - JOUR
AU  - Askrabić, S.
AU  - Araujo, V. D.
AU  - Passacantando, M.
AU  - Bernardi, M. I. B.
AU  - Tomić, N.
AU  - Dojcinović, B.
AU  - Manojlović, Dragan
AU  - Čalija, Bojan
AU  - Miletić, M.
AU  - Dohcević-Mitrović, Z. D.
PY  - 2017
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/2857
AB  - Pr(OH)(3) one-dimensional nanostructures are a less studied member of lanthanide hydroxide nanostructures, which recently demonstrated an excellent adsorption capacity for organic pollutant removal from wastewater. In this study, Pr1-xEux(OH)(3) (x = 0, 0.01, 0.03, and 0.05) defective nanostructures were synthesized by a facile and scalable microwave-assisted hydrothermal method using KOH as an alkaline metal precursor. The phase and surface composition, morphology, vibrational, electronic and optical properties of the as-prepared samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), inductively coupled plasma optical emission spectrometry (ICP-OES), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), Raman, infrared (IR), photoluminescence (PL), and diffuse reflectance spectroscopy (DRS). It was deduced that the incorporation of Eu3+ ions promoted the formation of oxygen vacancies in the already defective Pr(OH)(3), subsequently changing the Pr(OH)(3) nanorod morphology. The presence of KNO3 phase was registered in the Eu-doped samples. The oxygendeficient Eu-doped Pr(OH)(3) nanostructures displayed an improved photocatalytic activity in the removal of reactive orange (RO16) dye under UV-vis light irradiation. An enhanced photocatalytic activity of the Eu-doped Pr(OH)(3) nanostructures was caused by the synergetic effect of oxygen vacancies and Eu3+ (NO3-) ions present on the Pr(OH)(3) surface, the charge separation efficiency and the formation of the reactive radicals. In addition, the 3% Eu-doped sample exhibited very good adsorptive properties due to different morphology and higher electrostatic attraction with the anionic dye. Pr1-xEux(OH)(3) nanostructures with the possibility of tuning their adsorption/photocatalytic properties present a great potential for wastewater treatment.
PB  - Royal Soc Chemistry, Cambridge
T2  - Physical Chemistry Chemical Physics
T1  - Nitrate-assisted photocatalytic efficiency of defective Eu-doped Pr(OH)(3) nanostructures
VL  - 19
IS  - 47
SP  - 31756
EP  - 31765
DO  - 10.1039/c7cp06440c
ER  - 
@article{
author = "Askrabić, S. and Araujo, V. D. and Passacantando, M. and Bernardi, M. I. B. and Tomić, N. and Dojcinović, B. and Manojlović, Dragan and Čalija, Bojan and Miletić, M. and Dohcević-Mitrović, Z. D.",
year = "2017",
abstract = "Pr(OH)(3) one-dimensional nanostructures are a less studied member of lanthanide hydroxide nanostructures, which recently demonstrated an excellent adsorption capacity for organic pollutant removal from wastewater. In this study, Pr1-xEux(OH)(3) (x = 0, 0.01, 0.03, and 0.05) defective nanostructures were synthesized by a facile and scalable microwave-assisted hydrothermal method using KOH as an alkaline metal precursor. The phase and surface composition, morphology, vibrational, electronic and optical properties of the as-prepared samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), inductively coupled plasma optical emission spectrometry (ICP-OES), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), Raman, infrared (IR), photoluminescence (PL), and diffuse reflectance spectroscopy (DRS). It was deduced that the incorporation of Eu3+ ions promoted the formation of oxygen vacancies in the already defective Pr(OH)(3), subsequently changing the Pr(OH)(3) nanorod morphology. The presence of KNO3 phase was registered in the Eu-doped samples. The oxygendeficient Eu-doped Pr(OH)(3) nanostructures displayed an improved photocatalytic activity in the removal of reactive orange (RO16) dye under UV-vis light irradiation. An enhanced photocatalytic activity of the Eu-doped Pr(OH)(3) nanostructures was caused by the synergetic effect of oxygen vacancies and Eu3+ (NO3-) ions present on the Pr(OH)(3) surface, the charge separation efficiency and the formation of the reactive radicals. In addition, the 3% Eu-doped sample exhibited very good adsorptive properties due to different morphology and higher electrostatic attraction with the anionic dye. Pr1-xEux(OH)(3) nanostructures with the possibility of tuning their adsorption/photocatalytic properties present a great potential for wastewater treatment.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Physical Chemistry Chemical Physics",
title = "Nitrate-assisted photocatalytic efficiency of defective Eu-doped Pr(OH)(3) nanostructures",
volume = "19",
number = "47",
pages = "31756-31765",
doi = "10.1039/c7cp06440c"
}
Askrabić, S., Araujo, V. D., Passacantando, M., Bernardi, M. I. B., Tomić, N., Dojcinović, B., Manojlović, D., Čalija, B., Miletić, M.,& Dohcević-Mitrović, Z. D.. (2017). Nitrate-assisted photocatalytic efficiency of defective Eu-doped Pr(OH)(3) nanostructures. in Physical Chemistry Chemical Physics
Royal Soc Chemistry, Cambridge., 19(47), 31756-31765.
https://doi.org/10.1039/c7cp06440c
Askrabić S, Araujo VD, Passacantando M, Bernardi MIB, Tomić N, Dojcinović B, Manojlović D, Čalija B, Miletić M, Dohcević-Mitrović ZD. Nitrate-assisted photocatalytic efficiency of defective Eu-doped Pr(OH)(3) nanostructures. in Physical Chemistry Chemical Physics. 2017;19(47):31756-31765.
doi:10.1039/c7cp06440c .
Askrabić, S., Araujo, V. D., Passacantando, M., Bernardi, M. I. B., Tomić, N., Dojcinović, B., Manojlović, Dragan, Čalija, Bojan, Miletić, M., Dohcević-Mitrović, Z. D., "Nitrate-assisted photocatalytic efficiency of defective Eu-doped Pr(OH)(3) nanostructures" in Physical Chemistry Chemical Physics, 19, no. 47 (2017):31756-31765,
https://doi.org/10.1039/c7cp06440c . .
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