Synthesis and characterisation of spherical core-shell Ag/ZnO nanocomposites using single and two – steps ultrasonic spray pyrolysis (USP)
Autori
Muñoz-Fernandez, LidiaAlkan, Gözde
Milošević, Olivera
Rabanal, Maria Eugenia
Friedrich, Bernd
Članak u časopisu (Recenzirana verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Spherical core-shell Ag/ZnO nanocomposites were synthesised by ultrasonic spray pyrolysis (USP) method from zinc nitrate hexahydrate, Zn(NO3)2·6H2O (ZN) and silver nitrate, AgNO3 (SN) precursors. Varying solution concentrations and equipment installations (either single − or two-step USP) allowing simultaneous and consecutive precipitation of Ag and ZnO were examined regarding their effect on final particle microstructure and photocatalytic properties. Morphological analyses revealed pure Ag/ZnO core-shell structure where ZnO secondary submicron sized particles formed by primary crystals with the size of 5–20 nm. Depending on the solution concentrations and USP installations, various distributions of Ag in the final microstructure was revealed. Photocatalytic analyses (all samples reached >45% MB degradation) confirm the all Ag/ZnO USP systems viability for environmental applications. The best result (93% of methylene blue (MB) elimination) is obtained for the sample with the maximu...m available surface, which strongly depends on particle morphology, size, and dispersion. Moreover, all samples synthesised by single step co-precipitation revealed higher dye elimination concerning ones with two steps precipitation due to the favoured distribution of silver nanoparticles in their microstructure and higher specific surface area. Moreover, samples with a uniform and homogeneous Ag distribution exhibited silver-induced enhancement of photocatalytic performance. © 2017 Elsevier B.V.
Ključne reči:
Ag/ZnO / sore-shell structures / ultrasonic spray pyrolysisIzvor:
Catalysis Today, 2019, 321-322, 26-33Izdavač:
- Elsevier
Finansiranje / projekti:
- Autonomous Region Program of Madrid, Spain, MULTIMAT-CHALLENGE (ref. S2013/MIT-2862)
- Racionalni dizajn i sinteza biološki aktivnih i koordinacionih jedinjenja i funkcionalnih materijala, relevantnih u (bio)nanotehnologiji (RS-MESTD-Basic Research (BR or ON)-172035)
- Materijali redukovane dimenzionalnosti za efikasnu apsorpciju svetlosti i konverziju energije (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
Napomena:
- This is the peer-reviewed version of the article: Muñoz-Fernandez, L., Alkan, G., Milošević, O., Rabanal, M.E., Friedrich, B., 2019. Synthesis and characterisation of spherical core-shell Ag/ZnO nanocomposites using single and two – steps ultrasonic spray pyrolysis (USP). Catalysis Today 321–322, 26–33. https://doi.org/10.1016/j.cattod.2017.11.029
- Supporting information: https://hdl.handle.net/21.15107/rcub_dais_5973
- Published version: https://hdl.handle.net/21.15107/rcub_dais_4591
Povezane informacije:
- Druga verzija
https://hdl.handle.net/21.15107/rcub_dais_4591 - Druga verzija
https://doi.org/10.1016/j.cattod.2017.11.029 - Povezani sadržaj
https://hdl.handle.net/21.15107/rcub_dais_5973
DOI: 10.1016/j.cattod.2017.11.029
ISSN: 0920-5861
WoS: 000451030700005
Scopus: 2-s2.0-85035353170
Institucija/grupa
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Muñoz-Fernandez, Lidia AU - Alkan, Gözde AU - Milošević, Olivera AU - Rabanal, Maria Eugenia AU - Friedrich, Bernd PY - 2019 UR - https://dais.sanu.ac.rs/123456789/4602 AB - Spherical core-shell Ag/ZnO nanocomposites were synthesised by ultrasonic spray pyrolysis (USP) method from zinc nitrate hexahydrate, Zn(NO3)2·6H2O (ZN) and silver nitrate, AgNO3 (SN) precursors. Varying solution concentrations and equipment installations (either single − or two-step USP) allowing simultaneous and consecutive precipitation of Ag and ZnO were examined regarding their effect on final particle microstructure and photocatalytic properties. Morphological analyses revealed pure Ag/ZnO core-shell structure where ZnO secondary submicron sized particles formed by primary crystals with the size of 5–20 nm. Depending on the solution concentrations and USP installations, various distributions of Ag in the final microstructure was revealed. Photocatalytic analyses (all samples reached >45% MB degradation) confirm the all Ag/ZnO USP systems viability for environmental applications. The best result (93% of methylene blue (MB) elimination) is obtained for the sample with the maximum available surface, which strongly depends on particle morphology, size, and dispersion. Moreover, all samples synthesised by single step co-precipitation revealed higher dye elimination concerning ones with two steps precipitation due to the favoured distribution of silver nanoparticles in their microstructure and higher specific surface area. Moreover, samples with a uniform and homogeneous Ag distribution exhibited silver-induced enhancement of photocatalytic performance. © 2017 Elsevier B.V. PB - Elsevier T2 - Catalysis Today T1 - Synthesis and characterisation of spherical core-shell Ag/ZnO nanocomposites using single and two – steps ultrasonic spray pyrolysis (USP) SP - 26 EP - 33 VL - 321-322 DO - 10.1016/j.cattod.2017.11.029 UR - https://hdl.handle.net/21.15107/rcub_dais_4602 ER -
@article{ author = "Muñoz-Fernandez, Lidia and Alkan, Gözde and Milošević, Olivera and Rabanal, Maria Eugenia and Friedrich, Bernd", year = "2019", abstract = "Spherical core-shell Ag/ZnO nanocomposites were synthesised by ultrasonic spray pyrolysis (USP) method from zinc nitrate hexahydrate, Zn(NO3)2·6H2O (ZN) and silver nitrate, AgNO3 (SN) precursors. Varying solution concentrations and equipment installations (either single − or two-step USP) allowing simultaneous and consecutive precipitation of Ag and ZnO were examined regarding their effect on final particle microstructure and photocatalytic properties. Morphological analyses revealed pure Ag/ZnO core-shell structure where ZnO secondary submicron sized particles formed by primary crystals with the size of 5–20 nm. Depending on the solution concentrations and USP installations, various distributions of Ag in the final microstructure was revealed. Photocatalytic analyses (all samples reached >45% MB degradation) confirm the all Ag/ZnO USP systems viability for environmental applications. The best result (93% of methylene blue (MB) elimination) is obtained for the sample with the maximum available surface, which strongly depends on particle morphology, size, and dispersion. Moreover, all samples synthesised by single step co-precipitation revealed higher dye elimination concerning ones with two steps precipitation due to the favoured distribution of silver nanoparticles in their microstructure and higher specific surface area. Moreover, samples with a uniform and homogeneous Ag distribution exhibited silver-induced enhancement of photocatalytic performance. © 2017 Elsevier B.V.", publisher = "Elsevier", journal = "Catalysis Today", title = "Synthesis and characterisation of spherical core-shell Ag/ZnO nanocomposites using single and two – steps ultrasonic spray pyrolysis (USP)", pages = "26-33", volume = "321-322", doi = "10.1016/j.cattod.2017.11.029", url = "https://hdl.handle.net/21.15107/rcub_dais_4602" }
Muñoz-Fernandez, L., Alkan, G., Milošević, O., Rabanal, M. E.,& Friedrich, B.. (2019). Synthesis and characterisation of spherical core-shell Ag/ZnO nanocomposites using single and two – steps ultrasonic spray pyrolysis (USP). in Catalysis Today Elsevier., 321-322, 26-33. https://doi.org/10.1016/j.cattod.2017.11.029 https://hdl.handle.net/21.15107/rcub_dais_4602
Muñoz-Fernandez L, Alkan G, Milošević O, Rabanal ME, Friedrich B. Synthesis and characterisation of spherical core-shell Ag/ZnO nanocomposites using single and two – steps ultrasonic spray pyrolysis (USP). in Catalysis Today. 2019;321-322:26-33. doi:10.1016/j.cattod.2017.11.029 https://hdl.handle.net/21.15107/rcub_dais_4602 .
Muñoz-Fernandez, Lidia, Alkan, Gözde, Milošević, Olivera, Rabanal, Maria Eugenia, Friedrich, Bernd, "Synthesis and characterisation of spherical core-shell Ag/ZnO nanocomposites using single and two – steps ultrasonic spray pyrolysis (USP)" in Catalysis Today, 321-322 (2019):26-33, https://doi.org/10.1016/j.cattod.2017.11.029 ., https://hdl.handle.net/21.15107/rcub_dais_4602 .