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Synthesis and characterisation of spherical core-shell Ag/ZnO nanocomposites using single and two – steps ultrasonic spray pyrolysis (USP)
dc.creator | Muñoz-Fernandez, Lidia | |
dc.creator | Alkan, Gözde | |
dc.creator | Milošević, Olivera | |
dc.creator | Rabanal, Maria Eugenia | |
dc.creator | Friedrich, Bernd | |
dc.date.accessioned | 2018-12-18T22:06:50Z | |
dc.date.available | 2019-11-29 | |
dc.date.issued | 2019 | |
dc.identifier.issn | 0920-5861 | |
dc.identifier.uri | https://dais.sanu.ac.rs/123456789/4602 | |
dc.description.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. | en |
dc.publisher | Elsevier | |
dc.relation | Autonomous Region Program of Madrid, Spain, MULTIMAT-CHALLENGE (ref. S2013/MIT-2862) | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172035/RS// | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45020/RS// | |
dc.relation.isversionof | https://hdl.handle.net/21.15107/rcub_dais_4591 | |
dc.relation.isversionof | https://doi.org/10.1016/j.cattod.2017.11.029 | |
dc.relation.isreferencedby | https://hdl.handle.net/21.15107/rcub_dais_5973 | |
dc.rights | embargoedAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | Catalysis Today | |
dc.subject | Ag/ZnO | |
dc.subject | sore-shell structures | |
dc.subject | ultrasonic spray pyrolysis | |
dc.title | Synthesis and characterisation of spherical core-shell Ag/ZnO nanocomposites using single and two – steps ultrasonic spray pyrolysis (USP) | en |
dc.type | article | en |
dc.rights.license | BY-NC-ND | |
dcterms.abstract | Aлкан, Г.; Милошевић, Оливера; Рабанал, Мариа Еугениа; Фриедрицх, Б.; Муñоз-Фернандез, Лидиа; | |
dc.citation.spage | 26 | |
dc.citation.epage | 33 | |
dc.citation.volume | 321-322 | |
dc.identifier.wos | 000451030700005 | |
dc.identifier.doi | 10.1016/j.cattod.2017.11.029 | |
dc.identifier.scopus | 2-s2.0-85035353170 | |
dc.description.other | 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] | |
dc.description.other | Supporting information: [https://hdl.handle.net/21.15107/rcub_dais_5973] | |
dc.description.other | Published version: [https://hdl.handle.net/21.15107/rcub_dais_4591] | |
dc.type.version | acceptedVersion | |
dc.identifier.fulltext | https://dais.sanu.ac.rs/bitstream/id/14394/muozfernandez2017.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_dais_4602 |