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)

Metadata
Show full item recordAbstract
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 / photocatalysisSource:
Advanced Powder Technology, 2017, 28, 1, 83-92Publisher:
- Elsevier
Funding / 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
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Muñoz-Fernandez, Lidia AU - Sierra-Fernández, Aránzazu AU - Flores-Carrasco, Gregorio AU - Milošević, Olivera AU - Rabanal, Maria Eugenia PY - 2017 UR - https://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 UR - https://hdl.handle.net/21.15107/rcub_dais_2378 ER -
@article{ author = "Muñoz-Fernandez, Lidia and Sierra-Fernández, Aránzazu and Flores-Carrasco, Gregorio and Milošević, Olivera and Rabanal, Maria Eugenia", year = "2017", 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", url = "https://hdl.handle.net/21.15107/rcub_dais_2378" }
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. in Advanced Powder Technology Elsevier., 28(1), 83-92. https://doi.org/10.1016/j.apt.2016.09.033 https://hdl.handle.net/21.15107/rcub_dais_2378
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. in Advanced Powder Technology. 2017;28(1):83-92. doi:10.1016/j.apt.2016.09.033 https://hdl.handle.net/21.15107/rcub_dais_2378 .
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" in Advanced Powder Technology, 28, no. 1 (2017):83-92, https://doi.org/10.1016/j.apt.2016.09.033 ., https://hdl.handle.net/21.15107/rcub_dais_2378 .