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Thermal Defect Modulation and Functional Performance: A Case Study on ZnO–rGO Nanocomposites
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-5145-1560
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0003-2935-1165
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0003-1785-7177
2019 (English)In: Physica status solidi. B, Basic research, ISSN 0370-1972, E-ISSN 1521-3951, Vol. 256, no 12, article id 1900239Article in journal (Refereed) Published
Abstract [en]

Herein, a reduced graphene oxide–zinc oxide (rGO–ZnO) hybrid nanocomposite (1 wt% rGO) is synthesized and heat treated at different temperatures, aimed at modulating the intrinsic bulk/surface defects naturally present in nano‐ZnO. The correlation of both the dispersion of rGO within the metal oxide scaffold and the defects present on the semiconductor crystalline lattice with the photocatalytic performance toward the degradation of a molecular dye in water is investigated and discussed. It is shown that several processes compete to determine the catalytic skill of the nanocomposite, which can be enhanced by a simple thermal treatment at moderate temperatures.

Place, publisher, year, edition, pages
John Wiley & Sons, 2019. Vol. 256, no 12, article id 1900239
Keywords [en]
crystalline defects, hybrid nanocomposites, photocatalysis, photoluminescence, reduced graphene oxide, thermal treatment, zinc oxide
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Other Physics Topics
Research subject
Experimental Physics
Identifiers
URN: urn:nbn:se:ltu:diva-76877DOI: 10.1002/pssb.201900239ISI: 000495784800001Scopus ID: 2-s2.0-85075015324OAI: oai:DiVA.org:ltu-76877DiVA, id: diva2:1373425
Note

Validerad;2020;Nivå 2;2019-12-16 (johcin)

Available from: 2019-11-27 Created: 2019-11-27 Last updated: 2019-12-16Bibliographically approved

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Landström, AntonSoldatov, AlexanderVomiero, AlbertoConcina, Isabella

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