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Solvothermal synthesis of Ag/ZnO micro/nanostructures with different precursors for advanced photocatalytic applications

Authorized Users Only
2017
Authors
Muñoz-Fernandez, Lidia
Sierra-Fernández, Aránzazu
Flores-Carrasco, Gregorio
Milošević, Olivera
Rabanal, Maria Eugenia
Article (Published version)
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Abstract
Micro/nanostructured systems based on metallic oxide (ZnO) with noble metal (Ag) on the surface (Ag/ZnO) are synthesized by solvothermal method from zinc nitrate hexahydrate (Zn(NO3)2·6H2O), zinc acetate dehydrate (Zn(CH3COO)2·2H2O), zinc acetylacetonate hydrate (Zn(C5H7O2)2·xH2O) and silver nitrate (Ag(NO3)) as precursors. In these systems, polyvinylpyrrolidone (PVP) is used as surfactant for controlling particle morphology, size and dispersion. The obtained materials are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), UV–vis diffuse reflectance spectroscopy (DRS), N2 gas adsorption–desorption (BET) and Raman spectroscopy (RS). By XRD results, all major peaks are indexed to the hexagonal wurtzite-type structure of the ZnO and samples with noble metal, extra diffraction peaks are detected which correspond to the face-centered-cubic (fcc) structure of the metallic Ag. Depending on used precursor, di...fferent morphologies have been obtained. Mainly, ZnO prims-like rods – NRs (with 0.8 ⩽ aspect ratio ⩾ 3.4) – have been observed. Quasi-spherical particles of metallic Ag (with diameters between 558 ± 111 μm and 22 ± 1 nm) have been detected on the ZnO surface. Photocatalytic results (all samples studied >30% MB degradation) verify the important effect of surfactant and the viability of synthesized Ag/ZnO micro/nanocomposites for environmental applications.

Keywords:
Ag and ZnO systems / PVP / solvothermal method / photocatalysis
Source:
Advanced Powder Technology, 2017, 28, 1, 83-92
Publisher:
  • Elsevier
Projects:
  • Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology (RS-172035)
  • Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-45020)
  • Autonomous Region Program of Madrid, Spain, MULTIMAT-CHALLENGE (ref. S2013/MIT-2862)
  • Innovation and Education Ministry, Spain, Project MAT2013-47460-C5-5-P

DOI: 10.1016/j.apt.2016.09.033

ISSN: 0921-8831

WoS: 000395355100011

Scopus: 2-s2.0-85006304357
[ Google Scholar ]
15
9
URI
http://dais.sanu.ac.rs/123456789/2378
Collections
  • ITN SANU - Opšta kolekcija / ITS SASA - General collection
Institution
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - JOUR
AU  - Muñoz-Fernandez, Lidia
AU  - Sierra-Fernández, Aránzazu
AU  - Flores-Carrasco, Gregorio
AU  - Milošević, Olivera
AU  - Rabanal, Maria Eugenia
PY  - 2017
UR  - http://dais.sanu.ac.rs/123456789/2378
AB  - Micro/nanostructured systems based on metallic oxide (ZnO) with noble metal (Ag) on the surface (Ag/ZnO) are synthesized by solvothermal method from zinc nitrate hexahydrate (Zn(NO3)2·6H2O), zinc acetate dehydrate (Zn(CH3COO)2·2H2O), zinc acetylacetonate hydrate (Zn(C5H7O2)2·xH2O) and silver nitrate (Ag(NO3)) as precursors. In these systems, polyvinylpyrrolidone (PVP) is used as surfactant for controlling particle morphology, size and dispersion. The obtained materials are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), UV–vis diffuse reflectance spectroscopy (DRS), N2 gas adsorption–desorption (BET) and Raman spectroscopy (RS). By XRD results, all major peaks are indexed to the hexagonal wurtzite-type structure of the ZnO and samples with noble metal, extra diffraction peaks are detected which correspond to the face-centered-cubic (fcc) structure of the metallic Ag. Depending on used precursor, different morphologies have been obtained. Mainly, ZnO prims-like rods – NRs (with 0.8 ⩽ aspect ratio ⩾ 3.4) – have been observed. Quasi-spherical particles of metallic Ag (with diameters between 558 ± 111 μm and 22 ± 1 nm) have been detected on the ZnO surface. Photocatalytic results (all samples studied >30% MB degradation) verify the important effect of surfactant and the viability of synthesized Ag/ZnO micro/nanocomposites for environmental applications.
PB  - Elsevier
T2  - Advanced Powder Technology
T1  - Solvothermal synthesis of Ag/ZnO micro/nanostructures with different precursors for advanced photocatalytic applications
SP  - 83
EP  - 92
VL  - 28
IS  - 1
DO  - 10.1016/j.apt.2016.09.033
ER  - 
@article{
author = "Muñoz-Fernandez, Lidia and Sierra-Fernández, Aránzazu and Flores-Carrasco, Gregorio and Milošević, Olivera and Rabanal, Maria Eugenia",
year = "2017",
url = "http://dais.sanu.ac.rs/123456789/2378",
abstract = "Micro/nanostructured systems based on metallic oxide (ZnO) with noble metal (Ag) on the surface (Ag/ZnO) are synthesized by solvothermal method from zinc nitrate hexahydrate (Zn(NO3)2·6H2O), zinc acetate dehydrate (Zn(CH3COO)2·2H2O), zinc acetylacetonate hydrate (Zn(C5H7O2)2·xH2O) and silver nitrate (Ag(NO3)) as precursors. In these systems, polyvinylpyrrolidone (PVP) is used as surfactant for controlling particle morphology, size and dispersion. The obtained materials are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), UV–vis diffuse reflectance spectroscopy (DRS), N2 gas adsorption–desorption (BET) and Raman spectroscopy (RS). By XRD results, all major peaks are indexed to the hexagonal wurtzite-type structure of the ZnO and samples with noble metal, extra diffraction peaks are detected which correspond to the face-centered-cubic (fcc) structure of the metallic Ag. Depending on used precursor, different morphologies have been obtained. Mainly, ZnO prims-like rods – NRs (with 0.8 ⩽ aspect ratio ⩾ 3.4) – have been observed. Quasi-spherical particles of metallic Ag (with diameters between 558 ± 111 μm and 22 ± 1 nm) have been detected on the ZnO surface. Photocatalytic results (all samples studied >30% MB degradation) verify the important effect of surfactant and the viability of synthesized Ag/ZnO micro/nanocomposites for environmental applications.",
publisher = "Elsevier",
journal = "Advanced Powder Technology",
title = "Solvothermal synthesis of Ag/ZnO micro/nanostructures with different precursors for advanced photocatalytic applications",
pages = "83-92",
volume = "28",
number = "1",
doi = "10.1016/j.apt.2016.09.033"
}
Muñoz-Fernandez L, Sierra-Fernández A, Flores-Carrasco G, Milošević O, Rabanal ME. Solvothermal synthesis of Ag/ZnO micro/nanostructures with different precursors for advanced photocatalytic applications. Advanced Powder Technology. 2017;28(1):83-92
Muñoz-Fernandez, L., Sierra-Fernández, A., Flores-Carrasco, G., Milošević, O.,& Rabanal, M. E. (2017). Solvothermal synthesis of Ag/ZnO micro/nanostructures with different precursors for advanced photocatalytic applications.
Advanced Powder TechnologyElsevier., 28(1), 83-92. 
https://doi.org/10.1016/j.apt.2016.09.033
Muñoz-Fernandez Lidia, Sierra-Fernández Aránzazu, Flores-Carrasco Gregorio, Milošević Olivera, Rabanal Maria Eugenia, "Solvothermal synthesis of Ag/ZnO micro/nanostructures with different precursors for advanced photocatalytic applications" 28, no. 1 (2017):83-92,
https://doi.org/10.1016/j.apt.2016.09.033 .

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